Hi,
There's a kmemleak report of a struct pid allocation in alloc_pid()
which somehow gets lost:
unreferenced object 0xc307aa00 (size 44):
comm "gdm", pid 2734, jiffies 4294902040
backtrace:
[<c01e721a>] create_object+0xfa/0x250
[<c01e73cd>] kmemleak_alloc+0x5d/0x70
[<c01e0ad6>] kmem_cache_alloc+0x156/0x1a0
[<c01552f9>] alloc_pid+0x19/0x350
[<c013e6e0>] copy_process+0x800/0x1230
[<c013f17f>] do_fork+0x6f/0x370
[<c0101986>] sys_clone+0x36/0x40
[<c010319c>] sysenter_do_call+0x12/0x38
[<ffffffff>] 0xffffffff
This is the gdm fork for starting Xorg (with pid 2739). It first
logged me in automatically, after which I logged out and gdm started
another Xorg. The pid structure for the first Xorg is reported as a
leak. The Xorg with pid 2739 is no longer present on my system.
Using gdb vmlinux /proc/kcore shows that the pid->count is 2, so
that's why it probably wasn't freed by put_pid():
(gdb) print ({struct pid}0xc307aa00)
$20 = {count = {counter = 2}, level = 0, tasks = {{first = 0x0}, {
first = 0x0}, {first = 0x0}}, rcu = {next = 0xc24bfd64,
func = 0xc0154e90 <delayed_put_pid>}, numbers = {{nr = 2739,
ns = 0xc0737540, pid_chain = {next = 0x0, pprev = 0x200200}}}}
Note that kmemleak is aware of and scans pid_hash (which was recorded
in kmemleak as a 16KB object).
Regards.
--
Catalin
On Wed, 8 Jul 2009 22:33:31 +0100
Catalin Marinas <[email protected]> wrote:
> Hi,
>
> There's a kmemleak report of a struct pid allocation in alloc_pid()
> which somehow gets lost:
>
> unreferenced object 0xc307aa00 (size 44):
> comm "gdm", pid 2734, jiffies 4294902040
> backtrace:
> [<c01e721a>] create_object+0xfa/0x250
> [<c01e73cd>] kmemleak_alloc+0x5d/0x70
> [<c01e0ad6>] kmem_cache_alloc+0x156/0x1a0
> [<c01552f9>] alloc_pid+0x19/0x350
> [<c013e6e0>] copy_process+0x800/0x1230
> [<c013f17f>] do_fork+0x6f/0x370
> [<c0101986>] sys_clone+0x36/0x40
> [<c010319c>] sysenter_do_call+0x12/0x38
> [<ffffffff>] 0xffffffff
>
> This is the gdm fork for starting Xorg (with pid 2739). It first
> logged me in automatically, after which I logged out and gdm started
> another Xorg. The pid structure for the first Xorg is reported as a
> leak. The Xorg with pid 2739 is no longer present on my system.
>
> Using gdb vmlinux /proc/kcore shows that the pid->count is 2, so
> that's why it probably wasn't freed by put_pid():
>
> (gdb) print ({struct pid}0xc307aa00)
> $20 = {count = {counter = 2}, level = 0, tasks = {{first = 0x0}, {
> first = 0x0}, {first = 0x0}}, rcu = {next = 0xc24bfd64,
> func = 0xc0154e90 <delayed_put_pid>}, numbers = {{nr = 2739,
> ns = 0xc0737540, pid_chain = {next = 0x0, pprev = 0x200200}}}}
>
> Note that kmemleak is aware of and scans pid_hash (which was recorded
> in kmemleak as a 16KB object).
>
Thanks. Let's cc some recent pid fiddlers.
Quoting Andrew Morton ([email protected]):
> On Wed, 8 Jul 2009 22:33:31 +0100
> Catalin Marinas <[email protected]> wrote:
>
> > Hi,
> >
> > There's a kmemleak report of a struct pid allocation in alloc_pid()
> > which somehow gets lost:
> >
> > unreferenced object 0xc307aa00 (size 44):
> > comm "gdm", pid 2734, jiffies 4294902040
> > backtrace:
> > [<c01e721a>] create_object+0xfa/0x250
> > [<c01e73cd>] kmemleak_alloc+0x5d/0x70
> > [<c01e0ad6>] kmem_cache_alloc+0x156/0x1a0
> > [<c01552f9>] alloc_pid+0x19/0x350
> > [<c013e6e0>] copy_process+0x800/0x1230
> > [<c013f17f>] do_fork+0x6f/0x370
> > [<c0101986>] sys_clone+0x36/0x40
> > [<c010319c>] sysenter_do_call+0x12/0x38
> > [<ffffffff>] 0xffffffff
> >
> > This is the gdm fork for starting Xorg (with pid 2739). It first
> > logged me in automatically, after which I logged out and gdm started
> > another Xorg. The pid structure for the first Xorg is reported as a
> > leak. The Xorg with pid 2739 is no longer present on my system.
> >
> > Using gdb vmlinux /proc/kcore shows that the pid->count is 2, so
> > that's why it probably wasn't freed by put_pid():
> >
> > (gdb) print ({struct pid}0xc307aa00)
> > $20 = {count = {counter = 2}, level = 0, tasks = {{first = 0x0}, {
> > first = 0x0}, {first = 0x0}}, rcu = {next = 0xc24bfd64,
> > func = 0xc0154e90 <delayed_put_pid>}, numbers = {{nr = 2739,
> > ns = 0xc0737540, pid_chain = {next = 0x0, pprev = 0x200200}}}}
> >
> > Note that kmemleak is aware of and scans pid_hash (which was recorded
> > in kmemleak as a 16KB object).
> >
>
> Thanks. Let's cc some recent pid fiddlers.
Hi,
thanks for the report. Note that kernel modules can increment those
counds through find_get_pid(). Can you send your kernel .config and
the output of lsmod?
thanks,
-serge
On Wed, 2009-07-29 at 19:36 -0500, Serge E. Hallyn wrote:
> Quoting Andrew Morton ([email protected]):
> > On Wed, 8 Jul 2009 22:33:31 +0100
> > Catalin Marinas <[email protected]> wrote:
> > > There's a kmemleak report of a struct pid allocation in alloc_pid()
> > > which somehow gets lost:
[...]
> > > This is the gdm fork for starting Xorg (with pid 2739). It first
> > > logged me in automatically, after which I logged out and gdm started
> > > another Xorg. The pid structure for the first Xorg is reported as a
> > > leak. The Xorg with pid 2739 is no longer present on my system.
> > >
> > > Using gdb vmlinux /proc/kcore shows that the pid->count is 2, so
> > > that's why it probably wasn't freed by put_pid():
[...]
> thanks for the report. Note that kernel modules can increment those
> counds through find_get_pid().
It is possible that there are more *get_pid() calls than put_pid() but I
couldn't track them.
> Can you send your kernel .config and
> the output of lsmod?
I logged this as http://bugzilla.kernel.org/show_bug.cgi?id=13868. I
uploaded the ARM .config file (no modules loaded). I'll upload the x86
config as well later today (it's on my home machine but it's pretty much
the default Ubuntu 9.04 .config with CONFIG_KMEMLEAK enabled).
Thanks.
--
Catalin
On 07/29, Andrew Morton wrote:
>
> On Wed, 8 Jul 2009 22:33:31 +0100
> Catalin Marinas <[email protected]> wrote:
>
> > Hi,
> >
> > There's a kmemleak report of a struct pid allocation in alloc_pid()
> > which somehow gets lost:
> >
> > unreferenced object 0xc307aa00 (size 44):
> > comm "gdm", pid 2734, jiffies 4294902040
> > backtrace:
> > [<c01e721a>] create_object+0xfa/0x250
> > [<c01e73cd>] kmemleak_alloc+0x5d/0x70
> > [<c01e0ad6>] kmem_cache_alloc+0x156/0x1a0
> > [<c01552f9>] alloc_pid+0x19/0x350
> > [<c013e6e0>] copy_process+0x800/0x1230
> > [<c013f17f>] do_fork+0x6f/0x370
> > [<c0101986>] sys_clone+0x36/0x40
> > [<c010319c>] sysenter_do_call+0x12/0x38
> > [<ffffffff>] 0xffffffff
> >
> > This is the gdm fork for starting Xorg (with pid 2739). It first
> > logged me in automatically, after which I logged out and gdm started
> > another Xorg. The pid structure for the first Xorg is reported as a
> > leak. The Xorg with pid 2739 is no longer present on my system.
> >
> > Using gdb vmlinux /proc/kcore shows that the pid->count is 2, so
> > that's why it probably wasn't freed by put_pid():
> >
> > (gdb) print ({struct pid}0xc307aa00)
> > $20 = {count = {counter = 2}, level = 0, tasks = {{first = 0x0}, {
> > first = 0x0}, {first = 0x0}}, rcu = {next = 0xc24bfd64,
> > func = 0xc0154e90 <delayed_put_pid>}, numbers = {{nr = 2739,
> > ns = 0xc0737540, pid_chain = {next = 0x0, pprev = 0x200200}}}}
> >
> > Note that kmemleak is aware of and scans pid_hash (which was recorded
> > in kmemleak as a 16KB object).
This pid is detached and unhanshed. God knows who did the unbalanced
get_pid().
Since you can reproduce the problem easily, perhaps you can use the
hack above to track get/put ?
$ echo pid_of_Xorg > /proc/sys/kernel/xxx
Oleg.
--- CPUHP/kernel/sysctl.c~TRACK_PID 2009-06-28 18:14:27.000000000 +0200
+++ CPUHP/kernel/sysctl.c 2009-07-30 23:12:43.000000000 +0200
@@ -244,6 +244,10 @@ static int min_wakeup_granularity_ns;
static int max_wakeup_granularity_ns = NSEC_PER_SEC; /* 1 second */
#endif
+extern int xxx_pid;
+int set_xxx_pid(struct ctl_table *, int, struct file *,
+ void __user *, size_t *, loff_t *);
+
static struct ctl_table kern_table[] = {
#ifdef CONFIG_SCHED_DEBUG
{
@@ -989,7 +993,15 @@ static struct ctl_table kern_table[] = {
.proc_handler = &proc_dointvec,
},
#endif
-
+ {
+ .ctl_name = 666,
+ .procname = "xxx",
+ .data = &xxx_pid,
+ .maxlen = sizeof (int),
+ .mode = 0666,
+ .proc_handler = &set_xxx_pid,
+ .strategy = sysctl_intvec,
+ },
/*
* NOTE: do not add new entries to this table unless you have read
* Documentation/sysctl/ctl_unnumbered.txt
--- CPUHP/include/linux/pid.h~TRACK_PID 2009-04-06 00:03:41.000000000 +0200
+++ CPUHP/include/linux/pid.h 2009-07-30 23:10:32.000000000 +0200
@@ -57,6 +57,7 @@ struct upid {
struct pid
{
atomic_t count;
+ int trackme;
unsigned int level;
/* lists of tasks that use this pid */
struct hlist_head tasks[PIDTYPE_MAX];
@@ -74,8 +75,14 @@ struct pid_link
static inline struct pid *get_pid(struct pid *pid)
{
- if (pid)
+ if (pid) {
+ if (pid->trackme) {
+ printk(KERN_INFO "XXXXX(%d) ++%d\n",
+ pid->numbers[0].nr, atomic_read(&pid->count));
+ dump_stack();
+ }
atomic_inc(&pid->count);
+ }
return pid;
}
--- CPUHP/kernel/pid.c~TRACK_PID 2009-07-13 17:39:44.000000000 +0200
+++ CPUHP/kernel/pid.c 2009-07-30 23:12:05.000000000 +0200
@@ -207,6 +207,12 @@ void put_pid(struct pid *pid)
if (!pid)
return;
+ if (pid->trackme) {
+ printk(KERN_INFO "XXXXX(%d) --%d\n",
+ pid->numbers[0].nr, atomic_read(&pid->count));
+ dump_stack();
+ }
+
ns = pid->numbers[pid->level].ns;
if ((atomic_read(&pid->count) == 1) ||
atomic_dec_and_test(&pid->count)) {
@@ -250,6 +256,7 @@ struct pid *alloc_pid(struct pid_namespa
pid = kmem_cache_alloc(ns->pid_cachep, GFP_KERNEL);
if (!pid)
goto out;
+ pid->trackme = 0;
tmp = ns;
for (i = ns->level; i >= 0; i--) {
@@ -491,6 +498,30 @@ struct pid *find_ge_pid(int nr, struct p
return pid;
}
+int xxx_pid;
+
+int set_xxx_pid(ctl_table *table, int write, struct file *file,
+ void __user *buffer, size_t *length, loff_t *ppos)
+{
+ struct pid *pid;
+
+ proc_dointvec_minmax(table, write, file, buffer, length, ppos);
+ if (!write)
+ return 0;
+
+ rcu_read_lock();
+ pid = find_vpid(xxx_pid);
+ if (pid) {
+ printk(KERN_INFO "XXXXX(%d) ==%d\n", xxx_pid, atomic_read(&pid->count));
+ pid->trackme = 1;
+ } else {
+ printk(KERN_INFO "XXXXX(%d) not found\n", xxx_pid);
+ }
+ rcu_read_unlock();
+
+ return 0;
+}
+
/*
* The pid hash table is scaled according to the amount of memory in the
* machine. From a minimum of 16 slots up to 4096 slots at one gigabyte or
On Thu, 2009-07-30 at 23:29 +0200, Oleg Nesterov wrote:
> On 07/29, Andrew Morton wrote:
> > On Wed, 8 Jul 2009 22:33:31 +0100
> > Catalin Marinas <[email protected]> wrote:
> > > This is the gdm fork for starting Xorg (with pid 2739). It first
> > > logged me in automatically, after which I logged out and gdm started
> > > another Xorg. The pid structure for the first Xorg is reported as a
> > > leak. The Xorg with pid 2739 is no longer present on my system.
> > >
> > > Using gdb vmlinux /proc/kcore shows that the pid->count is 2, so
> > > that's why it probably wasn't freed by put_pid():
> > >
> > > (gdb) print ({struct pid}0xc307aa00)
> > > $20 = {count = {counter = 2}, level = 0, tasks = {{first = 0x0}, {
> > > first = 0x0}, {first = 0x0}}, rcu = {next = 0xc24bfd64,
> > > func = 0xc0154e90 <delayed_put_pid>}, numbers = {{nr = 2739,
> > > ns = 0xc0737540, pid_chain = {next = 0x0, pprev = 0x200200}}}}
> > >
> > > Note that kmemleak is aware of and scans pid_hash (which was recorded
> > > in kmemleak as a 16KB object).
>
> This pid is detached and unhanshed. God knows who did the unbalanced
> get_pid().
>
> Since you can reproduce the problem easily, perhaps you can use the
> hack above to track get/put ?
>
> $ echo pid_of_Xorg > /proc/sys/kernel/xxx
Below is the minicom capture. By the time Xorg dies, the count is 2.
When logging out, there are two counter incrementing events via
sys_wait4 and sys_ioctl, thoush I'm not sure whether they are
unbalanced.
It was tested on an ARM platform.
pgrep Xorg
1519
10:~# pgrep Xorg > /proc/sys/kernel/xxx
XXXXX(1519) ==22
XXXXX(1519) ++22
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c01234e9>] (tty_get_pgrp+0x29/0x4c)
[<c01234e9>] (tty_get_pgrp+0x29/0x4c) from [<c009e7cb>] (do_task_stat+0xc3/0x3c4)
[<c009e7cb>] (do_task_stat+0xc3/0x3c4) from [<c009ead7>] (proc_tgid_stat+0xb/0xc)
[<c009ead7>] (proc_tgid_stat+0xb/0xc) from [<c009c6b5>] (proc_single_show+0x35/0x5c)
[<c009c6b5>] (proc_single_show+0x35/0x5c) from [<c0085125>] (seq_read+0x125/0x294)
[<c0085125>] (seq_read+0x125/0x294) from [<c00759c9>] (vfs_read+0x69/0x11c)
[<c00759c9>] (vfs_read+0x69/0x11c) from [<c0075af5>] (sys_read+0x2d/0x48)
[<c0075af5>] (sys_read+0x2d/0x48) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --23
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c009e7db>] (do_task_stat+0xd3/0x3c4)
[<c009e7db>] (do_task_stat+0xd3/0x3c4) from [<c009ead7>] (proc_tgid_stat+0xb/0xc)
[<c009ead7>] (proc_tgid_stat+0xb/0xc) from [<c009c6b5>] (proc_single_show+0x35/0x5c)
[<c009c6b5>] (proc_single_show+0x35/0x5c) from [<c0085125>] (seq_read+0x125/0x294)
[<c0085125>] (seq_read+0x125/0x294) from [<c00759c9>] (vfs_read+0x69/0x11c)
[<c00759c9>] (vfs_read+0x69/0x11c) from [<c0075af5>] (sys_read+0x2d/0x48)
[<c0075af5>] (sys_read+0x2d/0x48) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
10:~# ps -e
PID TTY TIME CMD
1 ? 00:00:02 init
2 ? 00:00:00 kthreadd
3 ? 00:00:00 ksoftirqd/0
4 ? 00:00:00 watchdog/0
5 ? 00:00:00 rcu_sched_grace
6 ? 00:00:00 events/0
7 ? 0:00:00 khelper
10 ? 00:00:00 async/mgr
136 ? 00:00:00 kblockd/0
142 ? 00:00:00 ata/0
143 ? 00:00:00 ata_aux
147 ? 00:00:00 ksuspend_usbd
151 ? 00:00:00 khubd
154 ? 00:00:00 kseriod
160 ? 00:00:00 kmmcd
185 ? 00:00:00 khungtaskd
186 ? 00:00:00 pdflush
187 ? 00:00:00 pdflush
188 ? 00:00:00 kswapd0
275 ? 00:00:00 aio/0
294 ? 00:00:01 nfsiod
416 ? 00:00:00 kapmd
436 ? 00:00:00 scsi_eh_0
449 ? 00:00:00 mtdblockd
470 ? 00:00:00 kpsmoused
503 ? 00:00:00 usbhid_resumer
519 ? 00:00:04 rpciod/0
527 ? 00:00:25 kmemleak
607 ? 00:00:04 udevd
1141 ? 00:00:00 portmap
1154 ? 00:00:00 rpc.statd
1288 ? 00:00:00 dbus-daemon
1300 ? 00:00:00 lpd
1316 ? 00:00:00 ntpd
1330 ? 00:00:01 hald
1331 ? 00:00:00 hald-runner
1361 ? 00:00:00 gdm
1391 tty1 00:00:00 getty
1393 ttyAMA0 00:00:00 login
1395 ttyAMA1 00:00:00 getty
1405 ttyAMA0 00:01:02 bash
1419 ? 00:00:05 gdm
1426 tty2 00:00:00 getty
1519 tty3 00:00:01 Xorg
1527 ? 00:00:25 gdmgreeter
1535 ttyAMA0 00:00:00 ps
#
# CM: Xorg logout
#
10:~# XXXXX(1519) ++22
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c0042971>] (find_get_pid+0x25/0x44)
[<c0042971>] (find_get_pid+0x25/0x44) from [<c00393f5>] (sys_wait4+0x55/0x84)
[<c00393f5>] (sys_wait4+0x55/0x84) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --23
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c007605d>] (__fput+0xdd/0x160)
[<c007605d>] (__fput+0xdd/0x160) from [<c00760ff>] (fput+0x1f/0x20)
[<c00760ff>] (fput+0x1f/0x20) from [<c0073d51>] (filp_close+0x39/0x40)
[<c0073d51>] (filp_close+0x39/0x40) from [<c0073dbd>] (sys_close+0x65/0x98)
[<c0073dbd>] (sys_close+0x65/0x98) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --22
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c012a8c9>] (vt_ioctl+0xbb5/0x131c)
[<c012a8c9>] (vt_ioctl+0xbb5/0x131c) from [<c0124d65>] (tty_ioctl+0x5d9/0x620)
[<c0124d65>] (tty_ioctl+0x5d9/0x620) from [<c007d705>] (vfs_ioctl+0x15/0x50)
[<c007d705>] (vfs_ioctl+0x15/0x50) from [<c007db8d>] (do_vfs_ioctl+0x3a1/0x3c8)
[<c007db8d>] (do_vfs_ioctl+0x3a1/0x3c8) from [<c007dbd7>] (sys_ioctl+0x23/0x34)
[<c007dbd7>] (sys_ioctl+0x23/0x34) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) ++21
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c012a8e3>] (vt_ioctl+0xbcf/0x131c)
[<c012a8e3>] (vt_ioctl+0xbcf/0x131c) from [<c0124d65>] (tty_ioctl+0x5d9/0x620)
[<c0124d65>] (tty_ioctl+0x5d9/0x620) from [<c007d705>] (vfs_ioctl+0x15/0x50)
[<c007d705>] (vfs_ioctl+0x15/0x50) from [<c007db8d>] (do_vfs_ioctl+0x3a1/0x3c8)
[<c007db8d>] (do_vfs_ioctl+0x3a1/0x3c8) from [<c007dbd7>] (sys_ioctl+0x23/0x34)
[<c007dbd7>] (sys_ioctl+0x23/0x34) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --22
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c009b20d>] (proc_delete_inode+0x19/0x34)
[<c009b20d>] (proc_delete_inode+0x19/0x34) from [<c0081843>] (generic_delete_inode+0x67/0xc4)
[<c0081843>] (generic_delete_inode+0x67/0xc4) from [<c0080e6b>] (iput+0x3f/0x4c)
[<c0080e6b>] (iput+0x3f/0x4c) from [<c007f205>] (dentry_iput+0x75/0x88)
[<c007f205>] (dentry_iput+0x75/0x88) from [<c007f29d>] (d_kill+0x21/0x40)
[<c007f29d>] (d_kill+0x21/0x40) from [<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4)
[<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4) from [<c007f5e1>] (shrink_dcache_parent+0x25/0xb0)
[<c007f5e1>] (shrink_dcache_parent+0x25/0xb0) from [<c009d8f9>] (proc_flush_task+0x79/0x19c)
[<c009d8f9>] (proc_flush_task+0x79/0x19c) from [<c00386df>] (release_task+0x27/0x380)
[<c00386df>] (release_task+0x27/0x380) from [<c0038f35>] (wait_consider_task+0x4fd/0x7b8)
[<c0038f35>] (wait_consider_task+0x4fd/0x7b8) from [<c0039279>] (do_wait+0x89/0x1b0)
[<c0039279>] (do_wait+0x89/0x1b0) from [<c0039413>] (sys_wait4+0x73/0x84)
[<c0039413>] (sys_wait4+0x73/0x84) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --21
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c009b20d>] (proc_delete_inode+0x19/0x34)
[<c009b20d>] (proc_delete_inode+0x19/0x34) from [<c0081843>] (generic_delete_inode+0x67/0xc4)
[<c0081843>] (generic_delete_inode+0x67/0xc4) from [<c0080e6b>] (iput+0x3f/0x4c)
[<c0080e6b>] (iput+0x3f/0x4c) from [<c007f205>] (dentry_iput+0x75/0x88)
[<c007f205>] (dentry_iput+0x75/0x88) from [<c007f29d>] (d_kill+0x21/0x40)
[<c007f29d>] (d_kill+0x21/0x40) from [<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4)
[<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4) from [<c007f5e1>] (shrink_dcache_parent+0x25/0xb0)
[<c007f5e1>] (shrink_dcache_parent+0x25/0xb0) from [<c009d8f9>] (proc_flush_task+0x79/0x19c)
[<c009d8f9>] (proc_flush_task+0x79/0x19c) from [<c00386df>] (release_task+0x27/0x380)
[<c00386df>] (release_task+0x27/0x380) from [<c0038f35>] (wait_consider_task+0x4fd/0x7b8)
[<c0038f35>] (wait_consider_task+0x4fd/0x7b8) from [<c0039279>] (do_wait+0x89/0x1b0)
[<c0039279>] (do_wait+0x89/0x1b0) from [<c0039413>] (sys_wait4+0x73/0x84)
[<c0039413>] (sys_wait4+0x73/0x84) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --20
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c009b20d>] (proc_delete_inode+0x19/0x34)
[<c009b20d>] (proc_delete_inode+0x19/0x34) from [<c0081843>] (generic_delete_inode+0x67/0xc4)
[<c0081843>] (generic_delete_inode+0x67/0xc4) from [<c0080e6b>] (iput+0x3f/0x4c)
[<c0080e6b>] (iput+0x3f/0x4c) from [<c007f205>] (dentry_iput+0x75/0x88)
[<c007f205>] (dentry_iput+0x75/0x88) from [<c007f29d>] (d_kill+0x21/0x40)
[<c007f29d>] (d_kill+0x21/0x40) from [<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4)
[<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4) from [<c007f5e1>] (shrink_dcache_parent+0x25/0xb0)
[<c007f5e1>] (shrink_dcache_parent+0x25/0xb0) from [<c009d8f9>] (proc_flush_task+0x79/0x19c)
[<c009d8f9>] (proc_flush_task+0x79/0x19c) from [<c00386df>] (release_task+0x27/0x380)
[<c00386df>] (release_task+0x27/0x380) from [<c0038f35>] (wait_consider_task+0x4fd/0x7b8)
[<c0038f35>] (wait_consider_task+0x4fd/0x7b8) from [<c0039279>] (do_wait+0x89/0x1b0)
[<c0039279>] (do_wait+0x89/0x1b0) from [<c0039413>] (sys_wait4+0x73/0x84)
[<c0039413>] (sys_wait4+0x73/0x84) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --19
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c009b20d>] (proc_delete_inode+0x19/0x34)
[<c009b20d>] (proc_delete_inode+0x19/0x34) from [<c0081843>] (generic_delete_inode+0x67/0xc4)
[<c0081843>] (generic_delete_inode+0x67/0xc4) from [<c0080e6b>] (iput+0x3f/0x4c)
[<c0080e6b>] (iput+0x3f/0x4c) from [<c007f205>] (dentry_iput+0x75/0x88)
[<c007f205>] (dentry_iput+0x75/0x88) from [<c007f29d>] (d_kill+0x21/0x40)
[<c007f29d>] (d_kill+0x21/0x40) from [<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4)
[<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4) from [<c007f5e1>] (shrink_dcache_parent+0x25/0xb0)
[<c007f5e1>] (shrink_dcache_parent+0x25/0xb0) from [<c009d8f9>] (proc_flush_task+0x79/0x19c)
[<c009d8f9>] (proc_flush_task+0x79/0x19c) from [<c00386df>] (release_task+0x27/0x380)
[<c00386df>] (release_task+0x27/0x380) from [<c0038f35>] (wait_consider_task+0x4fd/0x7b8)
[<c0038f35>] (wait_consider_task+0x4fd/0x7b8) from [<c0039279>] (do_wait+0x89/0x1b0)
[<c0039279>] (do_wait+0x89/0x1b0) from [<c0039413>] (sys_wait4+0x73/0x84)
[<c0039413>] (sys_wait4+0x73/0x84) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --18
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c009b20d>] (proc_delete_inode+0x19/0x34)
[<c009b20d>] (proc_delete_inode+0x19/0x34) from [<c0081843>] (generic_delete_inode+0x67/0xc4)
[<c0081843>] (generic_delete_inode+0x67/0xc4) from [<c0080e6b>] (iput+0x3f/0x4c)
[<c0080e6b>] (iput+0x3f/0x4c) from [<c007f205>] (dentry_iput+0x75/0x88)
[<c007f205>] (dentry_iput+0x75/0x88) from [<c007f29d>] (d_kill+0x21/0x40)
[<c007f29d>] (d_kill+0x21/0x40) from [<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4)
[<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4) from [<c007f5e1>] (shrink_dcache_parent+0x25/0xb0)
[<c007f5e1>] (shrink_dcache_parent+0x25/0xb0) from [<c009d8f9>] (proc_flush_task+0x79/0x19c)
[<c009d8f9>] (proc_flush_task+0x79/0x19c) from [<c00386df>] (release_task+0x27/0x380)
[<c00386df>] (release_task+0x27/0x380) from [<c0038f35>] (wait_consider_task+0x4fd/0x7b8)
[<c0038f35>] (wait_consider_task+0x4fd/0x7b8) from [<c0039279>] (do_wait+0x89/0x1b0)
[<c0039279>] (do_wait+0x89/0x1b0) from [<c0039413>] (sys_wait4+0x73/0x84)
[<c0039413>] (sys_wait4+0x73/0x84) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --17
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c009b20d>] (proc_delete_inode+0x19/0x34)
[<c009b20d>] (proc_delete_inode+0x19/0x34) from [<c0081843>] (generic_delete_inode+0x67/0xc4)
[<c0081843>] (generic_delete_inode+0x67/0xc4) from [<c0080e6b>] (iput+0x3f/0x4c)
[<c0080e6b>] (iput+0x3f/0x4c) from [<c007f205>] (dentry_iput+0x75/0x88)
[<c007f205>] (dentry_iput+0x75/0x88) from [<c007f29d>] (d_kill+0x21/0x40)
[<c007f29d>] (d_kill+0x21/0x40) from [<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4)
[<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4) from [<c007f5e1>] (shrink_dcache_parent+0x25/0xb0)
[<c007f5e1>] (shrink_dcache_parent+0x25/0xb0) from [<c009d8f9>] (proc_flush_task+0x79/0x19c)
[<c009d8f9>] (proc_flush_task+0x79/0x19c) from [<c00386df>] (release_task+0x27/0x380)
[<c00386df>] (release_task+0x27/0x380) from [<c0038f35>] (wait_consider_task+0x4fd/0x7b8)
[<c0038f35>] (wait_consider_task+0x4fd/0x7b8) from [<c0039279>] (do_wait+0x89/0x1b0)
[<c0039279>] (do_wait+0x89/0x1b0) from [<c0039413>] (sys_wait4+0x73/0x84)
[<c0039413>] (sys_wait4+0x73/0x84) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --16
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c009b20d>] (proc_delete_inode+0x19/0x34)
[<c009b20d>] (proc_delete_inode+0x19/0x34) from [<c0081843>] (generic_delete_inode+0x67/0xc4)
[<c0081843>] (generic_delete_inode+0x67/0xc4) from [<c0080e6b>] (iput+0x3f/0x4c)
[<c0080e6b>] (iput+0x3f/0x4c) from [<c007f205>] (dentry_iput+0x75/0x88)
[<c007f205>] (dentry_iput+0x75/0x88) from [<c007f29d>] (d_kill+0x21/0x40)
[<c007f29d>] (d_kill+0x21/0x40) from [<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4)
[<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4) from [<c007f5e1>] (shrink_dcache_parent+0x25/0xb0)
[<c007f5e1>] (shrink_dcache_parent+0x25/0xb0) from [<c009d8f9>] (proc_flush_task+0x79/0x19c)
[<c009d8f9>] (proc_flush_task+0x79/0x19c) from [<c00386df>] (release_task+0x27/0x380)
[<c00386df>] (release_task+0x27/0x380) from [<c0038f35>] (wait_consider_task+0x4fd/0x7b8)
[<c0038f35>] (wait_consider_task+0x4fd/0x7b8) from [<c0039279>] (do_wait+0x89/0x1b0)
[<c0039279>] (do_wait+0x89/0x1b0) from [<c0039413>] (sys_wait4+0x73/0x84)
[<c0039413>] (sys_wait4+0x73/0x84) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --15
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c009b20d>] (proc_delete_inode+0x19/0x34)
[<c009b20d>] (proc_delete_inode+0x19/0x34) from [<c0081843>] (generic_delete_inode+0x67/0xc4)
[<c0081843>] (generic_delete_inode+0x67/0xc4) from [<c0080e6b>] (iput+0x3f/0x4c)
[<c0080e6b>] (iput+0x3f/0x4c) from [<c007f205>] (dentry_iput+0x75/0x88)
[<c007f205>] (dentry_iput+0x75/0x88) from [<c007f29d>] (d_kill+0x21/0x40)
[<c007f29d>] (d_kill+0x21/0x40) from [<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4)
[<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4) from [<c007f5e1>] (shrink_dcache_parent+0x25/0xb0)
[<c007f5e1>] (shrink_dcache_parent+0x25/0xb0) from [<c009d8f9>] (proc_flush_task+0x79/0x19c)
[<c009d8f9>] (proc_flush_task+0x79/0x19c) from [<c00386df>] (release_task+0x27/0x380)
[<c00386df>] (release_task+0x27/0x380) from [<c0038f35>] (wait_consider_task+0x4fd/0x7b8)
[<c0038f35>] (wait_consider_task+0x4fd/0x7b8) from [<c0039279>] (do_wait+0x89/0x1b0)
[<c0039279>] (do_wait+0x89/0x1b0) from [<c0039413>] (sys_wait4+0x73/0x84)
[<c0039413>] (sys_wait4+0x73/0x84) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --14
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c009b20d>] (proc_delete_inode+0x19/0x34)
[<c009b20d>] (proc_delete_inode+0x19/0x34) from [<c0081843>] (generic_delete_inode+0x67/0xc4)
[<c0081843>] (generic_delete_inode+0x67/0xc4) from [<c0080e6b>] (iput+0x3f/0x4c)
[<c0080e6b>] (iput+0x3f/0x4c) from [<c007f205>] (dentry_iput+0x75/0x88)
[<c007f205>] (dentry_iput+0x75/0x88) from [<c007f29d>] (d_kill+0x21/0x40)
[<c007f29d>] (d_kill+0x21/0x40) from [<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4)
[<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4) from [<c007f5e1>] (shrink_dcache_parent+0x25/0xb0)
[<c007f5e1>] (shrink_dcache_parent+0x25/0xb0) from [<c009d8f9>] (proc_flush_task+0x79/0x19c)
[<c009d8f9>] (proc_flush_task+0x79/0x19c) from [<c00386df>] (release_task+0x27/0x380)
[<c00386df>] (release_task+0x27/0x380) from [<c0038f35>] (wait_consider_task+0x4fd/0x7b8)
[<c0038f35>] (wait_consider_task+0x4fd/0x7b8) from [<c0039279>] (do_wait+0x89/0x1b0)
[<c0039279>] (do_wait+0x89/0x1b0) from [<c0039413>] (sys_wait4+0x73/0x84)
[<c0039413>] (sys_wait4+0x73/0x84) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --13
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c009b20d>] (proc_delete_inode+0x19/0x34)
[<c009b20d>] (proc_delete_inode+0x19/0x34) from [<c0081843>] (generic_delete_inode+0x67/0xc4)
[<c0081843>] (generic_delete_inode+0x67/0xc4) from [<c0080e6b>] (iput+0x3f/0x4c)
[<c0080e6b>] (iput+0x3f/0x4c) from [<c007f205>] (dentry_iput+0x75/0x88)
[<c007f205>] (dentry_iput+0x75/0x88) from [<c007f29d>] (d_kill+0x21/0x40)
[<c007f29d>] (d_kill+0x21/0x40) from [<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4)
[<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4) from [<c007f5e1>] (shrink_dcache_parent+0x25/0xb0)
[<c007f5e1>] (shrink_dcache_parent+0x25/0xb0) from [<c009d8f9>] (proc_flush_task+0x79/0x19c)
[<c009d8f9>] (proc_flush_task+0x79/0x19c) from [<c00386df>] (release_task+0x27/0x380)
[<c00386df>] (release_task+0x27/0x380) from [<c0038f35>] (wait_consider_task+0x4fd/0x7b8)
[<c0038f35>] (wait_consider_task+0x4fd/0x7b8) from [<c0039279>] (do_wait+0x89/0x1b0)
[<c0039279>] (do_wait+0x89/0x1b0) from [<c0039413>] (sys_wait4+0x73/0x84)
[<c0039413>] (sys_wait4+0x73/0x84) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --12
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c009b20d>] (proc_delete_inode+0x19/0x34)
[<c009b20d>] (proc_delete_inode+0x19/0x34) from [<c0081843>] (generic_delete_inode+0x67/0xc4)
[<c0081843>] (generic_delete_inode+0x67/0xc4) from [<c0080e6b>] (iput+0x3f/0x4c)
[<c0080e6b>] (iput+0x3f/0x4c) from [<c007f205>] (dentry_iput+0x75/0x88)
[<c007f205>] (dentry_iput+0x75/0x88) from [<c007f29d>] (d_kill+0x21/0x40)
[<c007f29d>] (d_kill+0x21/0x40) from [<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4)
[<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4) from [<c007f5e1>] (shrink_dcache_parent+0x25/0xb0)
[<c007f5e1>] (shrink_dcache_parent+0x25/0xb0) from [<c009d8f9>] (proc_flush_task+0x79/0x19c)
[<c009d8f9>] (proc_flush_task+0x79/0x19c) from [<c00386df>] (release_task+0x27/0x380)
[<c00386df>] (release_task+0x27/0x380) from [<c0038f35>] (wait_consider_task+0x4fd/0x7b8)
[<c0038f35>] (wait_consider_task+0x4fd/0x7b8) from [<c0039279>] (do_wait+0x89/0x1b0)
[<c0039279>] (do_wait+0x89/0x1b0) from [<c0039413>] (sys_wait4+0x73/0x84)
[<c0039413>] (sys_wait4+0x73/0x84) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --11
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c009b20d>] (proc_delete_inode+0x19/0x34)
[<c009b20d>] (proc_delete_inode+0x19/0x34) from [<c0081843>] (generic_delete_inode+0x67/0xc4)
[<c0081843>] (generic_delete_inode+0x67/0xc4) from [<c0080e6b>] (iput+0x3f/0x4c)
[<c0080e6b>] (iput+0x3f/0x4c) from [<c007f205>] (dentry_iput+0x75/0x88)
[<c007f205>] (dentry_iput+0x75/0x88) from [<c007f29d>] (d_kill+0x21/0x40)
[<c007f29d>] (d_kill+0x21/0x40) from [<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4)
[<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4) from [<c007f5e1>] (shrink_dcache_parent+0x25/0xb0)
[<c007f5e1>] (shrink_dcache_parent+0x25/0xb0) from [<c009d8f9>] (proc_flush_task+0x79/0x19c)
[<c009d8f9>] (proc_flush_task+0x79/0x19c) from [<c00386df>] (release_task+0x27/0x380)
[<c00386df>] (release_task+0x27/0x380) from [<c0038f35>] (wait_consider_task+0x4fd/0x7b8)
[<c0038f35>] (wait_consider_task+0x4fd/0x7b8) from [<c0039279>] (do_wait+0x89/0x1b0)
[<c0039279>] (do_wait+0x89/0x1b0) from [<c0039413>] (sys_wait4+0x73/0x84)
[<c0039413>] (sys_wait4+0x73/0x84) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --10
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c009b20d>] (proc_delete_inode+0x19/0x34)
[<c009b20d>] (proc_delete_inode+0x19/0x34) from [<c0081843>] (generic_delete_inode+0x67/0xc4)
[<c0081843>] (generic_delete_inode+0x67/0xc4) from [<c0080e6b>] (iput+0x3f/0x4c)
[<c0080e6b>] (iput+0x3f/0x4c) from [<c007f205>] (dentry_iput+0x75/0x88)
[<c007f205>] (dentry_iput+0x75/0x88) from [<c007f29d>] (d_kill+0x21/0x40)
[<c007f29d>] (d_kill+0x21/0x40) from [<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4)
[<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4) from [<c007f5e1>] (shrink_dcache_parent+0x25/0xb0)
[<c007f5e1>] (shrink_dcache_parent+0x25/0xb0) from [<c009d8f9>] (proc_flush_task+0x79/0x19c)
[<c009d8f9>] (proc_flush_task+0x79/0x19c) from [<c00386df>] (release_task+0x27/0x380)
[<c00386df>] (release_task+0x27/0x380) from [<c0038f35>] (wait_consider_task+0x4fd/0x7b8)
[<c0038f35>] (wait_consider_task+0x4fd/0x7b8) from [<c0039279>] (do_wait+0x89/0x1b0)
[<c0039279>] (do_wait+0x89/0x1b0) from [<c0039413>] (sys_wait4+0x73/0x84)
[<c0039413>] (sys_wait4+0x73/0x84) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --9
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c009b20d>] (proc_delete_inode+0x19/0x34)
[<c009b20d>] (proc_delete_inode+0x19/0x34) from [<c0081843>] (generic_delete_inode+0x67/0xc4)
[<c0081843>] (generic_delete_inode+0x67/0xc4) from [<c0080e6b>] (iput+0x3f/0x4c)
[<c0080e6b>] (iput+0x3f/0x4c) from [<c007f205>] (dentry_iput+0x75/0x88)
[<c007f205>] (dentry_iput+0x75/0x88) from [<c007f29d>] (d_kill+0x21/0x40)
[<c007f29d>] (d_kill+0x21/0x40) from [<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4)
[<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4) from [<c007f5e1>] (shrink_dcache_parent+0x25/0xb0)
[<c007f5e1>] (shrink_dcache_parent+0x25/0xb0) from [<c009d8f9>] (proc_flush_task+0x79/0x19c)
[<c009d8f9>] (proc_flush_task+0x79/0x19c) from [<c00386df>] (release_task+0x27/0x380)
[<c00386df>] (release_task+0x27/0x380) from [<c0038f35>] (wait_consider_task+0x4fd/0x7b8)
[<c0038f35>] (wait_consider_task+0x4fd/0x7b8) from [<c0039279>] (do_wait+0x89/0x1b0)
[<c0039279>] (do_wait+0x89/0x1b0) from [<c0039413>] (sys_wait4+0x73/0x84)
[<c0039413>] (sys_wait4+0x73/0x84) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --8
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c009b20d>] (proc_delete_inode+0x19/0x34)
[<c009b20d>] (proc_delete_inode+0x19/0x34) from [<c0081843>] (generic_delete_inode+0x67/0xc4)
[<c0081843>] (generic_delete_inode+0x67/0xc4) from [<c0080e6b>] (iput+0x3f/0x4c)
[<c0080e6b>] (iput+0x3f/0x4c) from [<c007f205>] (dentry_iput+0x75/0x88)
[<c007f205>] (dentry_iput+0x75/0x88) from [<c007f29d>] (d_kill+0x21/0x40)
[<c007f29d>] (d_kill+0x21/0x40) from [<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4)
[<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4) from [<c007f5e1>] (shrink_dcache_parent+0x25/0xb0)
[<c007f5e1>] (shrink_dcache_parent+0x25/0xb0) from [<c009d8f9>] (proc_flush_task+0x79/0x19c)
[<c009d8f9>] (proc_flush_task+0x79/0x19c) from [<c00386df>] (release_task+0x27/0x380)
[<c00386df>] (release_task+0x27/0x380) from [<c0038f35>] (wait_consider_task+0x4fd/0x7b8)
[<c0038f35>] (wait_consider_task+0x4fd/0x7b8) from [<c0039279>] (do_wait+0x89/0x1b0)
[<c0039279>] (do_wait+0x89/0x1b0) from [<c0039413>] (sys_wait4+0x73/0x84)
[<c0039413>] (sys_wait4+0x73/0x84) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --7
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c009b20d>] (proc_delete_inode+0x19/0x34)
[<c009b20d>] (proc_delete_inode+0x19/0x34) from [<c0081843>] (generic_delete_inode+0x67/0xc4)
[<c0081843>] (generic_delete_inode+0x67/0xc4) from [<c0080e6b>] (iput+0x3f/0x4c)
[<c0080e6b>] (iput+0x3f/0x4c) from [<c007f205>] (dentry_iput+0x75/0x88)
[<c007f205>] (dentry_iput+0x75/0x88) from [<c007f29d>] (d_kill+0x21/0x40)
[<c007f29d>] (d_kill+0x21/0x40) from [<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4)
[<c007f44d>] (__shrink_dcache_sb+0x191/0x1f4) from [<c007f5e1>] (shrink_dcache_parent+0x25/0xb0)
[<c007f5e1>] (shrink_dcache_parent+0x25/0xb0) from [<c009d8f9>] (proc_flush_task+0x79/0x19c)
[<c009d8f9>] (proc_flush_task+0x79/0x19c) from [<c00386df>] (release_task+0x27/0x380)
[<c00386df>] (release_task+0x27/0x380) from [<c0038f35>] (wait_consider_task+0x4fd/0x7b8)
[<c0038f35>] (wait_consider_task+0x4fd/0x7b8) from [<c0039279>] (do_wait+0x89/0x1b0)
[<c0039279>] (do_wait+0x89/0x1b0) from [<c0039413>] (sys_wait4+0x73/0x84)
[<c0039413>] (sys_wait4+0x73/0x84) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --6
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c009b20d>] (proc_delete_inode+0x19/0x34)
[<c009b20d>] (proc_delete_inode+0x19/0x34) from [<c0081843>] (generic_delete_inode+0x67/0xc4)
[<c0081843>] (generic_delete_inode+0x67/0xc4) from [<c0080e6b>] (iput+0x3f/0x4c)
[<c0080e6b>] (iput+0x3f/0x4c) from [<c007f205>] (dentry_iput+0x75/0x88)
[<c007f205>] (dentry_iput+0x75/0x88) from [<c007f29d>] (d_kill+0x21/0x40)
[<c007f29d>] (d_kill+0x21/0x40) from [<c0080609>] (dput+0xd9/0xf0)
[<c0080609>] (dput+0xd9/0xf0) from [<c009d937>] (proc_flush_task+0xb7/0x19c)
[<c009d937>] (proc_flush_task+0xb7/0x19c) from [<c00386df>] (release_task+0x27/0x380)
[<c00386df>] (release_task+0x27/0x380) from [<c0038f35>] (wait_consider_task+0x4fd/0x7b8)
[<c0038f35>] (wait_consider_task+0x4fd/0x7b8) from [<c0039279>] (do_wait+0x89/0x1b0)
[<c0039279>] (do_wait+0x89/0x1b0) from [<c0039413>] (sys_wait4+0x73/0x84)
[<c0039413>] (sys_wait4+0x73/0x84) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --5
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c003941b>] (sys_wait4+0x7b/0x84)
[<c003941b>] (sys_wait4+0x7b/0x84) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
XXXXX(1519) --4
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c0042a2d>] (delayed_put_pid+0x9/0xc)
[<c0042a2d>] (delayed_put_pid+0x9/0xc) from [<c0056ecb>] (rcu_process_callbacks+0x43/0x50)
[<c0056ecb>] (rcu_process_callbacks+0x43/0x50) from [<c003aae1>] (__do_softirq+0x75/0xe8)
[<c003aae1>] (__do_softirq+0x75/0xe8) from [<c003ab91>] (irq_exit+0x3d/0x4c)
[<c003ab91>] (irq_exit+0x3d/0x4c) from [<c002703d>] (_text+0x3d/0x50)
[<c002703d>] (_text+0x3d/0x50) from [<c002774d>] (__irq_svc+0x4d/0xbc)
Exception stack(0xc02eff78 to 0xc02effc0)
ff60: 00000001 00000004
ff80: c02effa8 00249455 c02ee000 c0316f20 c0017c9c c02f2b98 70015e6c 411fc081
ffa0: 0000001f 00000000 c02ee040 c02effc0 c004c753 c0028c0e 00000033 ffffffff
[<c002774d>] (__irq_svc+0x4d/0xbc) from [<c0028c0e>] (default_idle+0x1e/0x20)
[<c0028c0e>] (default_idle+0x1e/0x20) from [<c0028f6b>] (cpu_idle+0x33/0x7c)
[<c0028f6b>] (cpu_idle+0x33/0x7c) from [<c01f9a19>] (rest_init+0x51/0x64)
[<c01f9a19>] (rest_init+0x51/0x64) from [<c000881d>] (start_kernel+0x1b5/0x1f8)
[<c000881d>] (start_kernel+0x1b5/0x1f8) from [<7000803b>] (0x7000803b)
XXXXX(1519) --3
[<c002c031>] (unwind_backtrace+0x1/0x80) from [<c01fc323>] (dump_stack+0xb/0xc)
[<c01fc323>] (dump_stack+0xb/0xc) from [<c00429f5>] (put_pid+0x19/0x48)
[<c00429f5>] (put_pid+0x19/0x48) from [<c012a8c9>] (vt_ioctl+0xbb5/0x131c)
[<c012a8c9>] (vt_ioctl+0xbb5/0x131c) from [<c0124d65>] (tty_ioctl+0x5d9/0x620)
[<c0124d65>] (tty_ioctl+0x5d9/0x620) from [<c007d705>] (vfs_ioctl+0x15/0x50)
[<c007d705>] (vfs_ioctl+0x15/0x50) from [<c007db8d>] (do_vfs_ioctl+0x3a1/0x3c8)
[<c007db8d>] (do_vfs_ioctl+0x3a1/0x3c8) from [<c007dbd7>] (sys_ioctl+0x23/0x34)
[<c007dbd7>] (sys_ioctl+0x23/0x34) from [<c0027c41>] (ret_fast_syscall+0x1/0x40)
10:~# echo scan > /sys/kernel/debug/kmemleak
kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
10:~# cat /sys/kernel/debug/kmemleak
unreferenced object 0xdfa30de0 (size 48):
comm "gdm", pid 1419, jiffies 53918
hex dump (first 32 bytes):
02 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 04 24 36 de 25 2a 04 c0 .........$6.%*..
backtrace:
[<c00737c3>] __save_stack_trace+0x17/0x1c
[<c0073895>] create_object+0xcd/0x188
[<c01f9dfb>] kmemleak_alloc+0x1b/0x3c
[<c007242d>] kmem_cache_alloc+0xa5/0xb4
[<c0042a6d>] alloc_pid+0x11/0x22c
[<c0036685>] copy_process+0x831/0xc90
[<c0036bcf>] do_fork+0xeb/0x228
[<c002a4a5>] sys_clone+0x1d/0x20
[<c0027c41>] ret_fast_syscall+0x1/0x40
[<ffffffff>] 0xffffffff
10:~#
--
Catalin
Hi Oleg,
Sorry for the long delay with this investigation, I got distracted to
other tasks.
Oleg Nesterov <[email protected]> wrote:
> Pleas rename Xorg to Xorg.origin, and make a simple Xorg script which
> does something like
>
> #!/bin/sh
>
> echo $$ >> /proc/sys/kernel/xxx
> exec /path/to/Xorg.origin $*
>
> perhaps even this is too late, gdm can do a lot before execing.
I did this change and I copied the output below. The refcount log
starts at 12 but when the task exits, it is 2, hence the suspected
leak. I also ran a dummy script (i.e. without the exec line above) and
the refcount also starts at 12 but finishes at 0 (no leak). I think
this suspected leak is something specific to what the X server does.
XXXXX(1333) ==12
XXXXX(1333) ++12
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c0171844>] (__proc_set_tty+0x60/0x12c)
[<c0171844>] (__proc_set_tty+0x60/0x12c) from [<c017437c>] (tty_open+0x39c/0x444)
[<c017437c>] (tty_open+0x39c/0x444) from [<c00a2308>] (chrdev_open+0x178/0x198)
[<c00a2308>] (chrdev_open+0x178/0x198) from [<c009dbcc>] (__dentry_open+0x14c/0x268)
[<c009dbcc>] (__dentry_open+0x14c/0x268) from [<c009ddb0>] (nameidata_to_filp+0x44/0x58)
[<c009ddb0>] (nameidata_to_filp+0x44/0x58) from [<c00aaa14>] (do_filp_open+0x408/0x820)
[<c00aaa14>] (do_filp_open+0x408/0x820) from [<c009d9a0>] (do_sys_open+0x58/0x10c)
[<c009d9a0>] (do_sys_open+0x58/0x10c) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) ++13
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c0171898>] (__proc_set_tty+0xb4/0x12c)
[<c0171898>] (__proc_set_tty+0xb4/0x12c) from [<c017437c>] (tty_open+0x39c/0x444)
[<c017437c>] (tty_open+0x39c/0x444) from [<c00a2308>] (chrdev_open+0x178/0x198)
[<c00a2308>] (chrdev_open+0x178/0x198) from [<c009dbcc>] (__dentry_open+0x14c/0x268)
[<c009dbcc>] (__dentry_open+0x14c/0x268) from [<c009ddb0>] (nameidata_to_filp+0x44/0x58)
[<c009ddb0>] (nameidata_to_filp+0x44/0x58) from [<c00aaa14>] (do_filp_open+0x408/0x820)
[<c00aaa14>] (do_filp_open+0x408/0x820) from [<c009d9a0>] (do_sys_open+0x58/0x10c)
[<c009d9a0>] (do_sys_open+0x58/0x10c) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) ++14
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c017b8ac>] (vt_ioctl+0x1168/0x1c0c)
[<c017b8ac>] (vt_ioctl+0x1168/0x1c0c) from [<c017385c>] (tty_ioctl+0x880/0x920)
[<c017385c>] (tty_ioctl+0x880/0x920) from [<c00abc50>] (vfs_ioctl+0x2c/0x8c)
[<c00abc50>] (vfs_ioctl+0x2c/0x8c) from [<c00ac2fc>] (do_vfs_ioctl+0x554/0x5b0)
[<c00ac2fc>] (do_vfs_ioctl+0x554/0x5b0) from [<c00ac38c>] (sys_ioctl+0x34/0x54)
[<c00ac38c>] (sys_ioctl+0x34/0x54) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) ++15
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c00ab42c>] (f_modown+0x60/0xcc)
[<c00ab42c>] (f_modown+0x60/0xcc) from [<c00ab4b0>] (__f_setown+0x8/0x10)
[<c00ab4b0>] (__f_setown+0x8/0x10) from [<c00ab8a4>] (sys_fcntl64+0x70/0x84)
[<c00ab8a4>] (sys_fcntl64+0x70/0x84) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) ++16
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c005ace0>] (get_task_pid+0x40/0x60)
[<c005ace0>] (get_task_pid+0x40/0x60) from [<c00d8898>] (proc_pid_make_inode+0x50/0x9c)
[<c00d8898>] (proc_pid_make_inode+0x50/0x9c) from [<c00dacf4>] (proc_pident_instantiate+0x18/0x98)
[<c00dacf4>] (proc_pident_instantiate+0x18/0x98) from [<c00daf08>] (proc_pident_lookup+0x90/0xd0)
[<c00daf08>] (proc_pident_lookup+0x90/0xd0) from [<c00a75f0>] (do_lookup+0xbc/0x180)
[<c00a75f0>] (do_lookup+0xbc/0x180) from [<c00a93ec>] (__link_path_walk+0x9d8/0xed8)
[<c00a93ec>] (__link_path_walk+0x9d8/0xed8) from [<c00a9aac>] (path_walk+0x44/0x8c)
[<c00a9aac>] (path_walk+0x44/0x8c) from [<c00a9b80>] (do_path_lookup+0x24/0x4c)
[<c00a9b80>] (do_path_lookup+0x24/0x4c) from [<c00aa6c4>] (do_filp_open+0xb8/0x820)
[<c00aa6c4>] (do_filp_open+0xb8/0x820) from [<c009d9a0>] (do_sys_open+0x58/0x10c)
[<c009d9a0>] (do_sys_open+0x58/0x10c) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) ++17
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c005ac80>] (find_get_pid+0x30/0x50)
[<c005ac80>] (find_get_pid+0x30/0x50) from [<c004cae0>] (sys_wait4+0x70/0xb8)
[<c004cae0>] (sys_wait4+0x70/0xb8) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) --18
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c005ad2c>] (put_pid+0x2c/0x80)
[<c005ad2c>] (put_pid+0x2c/0x80) from [<c00a096c>] (__fput+0x140/0x1c8)
[<c00a096c>] (__fput+0x140/0x1c8) from [<c009d7e4>] (filp_close+0x70/0x7c)
[<c009d7e4>] (filp_close+0x70/0x7c) from [<c009d884>] (sys_close+0x94/0xe4)
[<c009d884>] (sys_close+0x94/0xe4) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) --17
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c005ad2c>] (put_pid+0x2c/0x80)
[<c005ad2c>] (put_pid+0x2c/0x80) from [<c017b87c>] (vt_ioctl+0x1138/0x1c0c)
[<c017b87c>] (vt_ioctl+0x1138/0x1c0c) from [<c017385c>] (tty_ioctl+0x880/0x920)
[<c017385c>] (tty_ioctl+0x880/0x920) from [<c00abc50>] (vfs_ioctl+0x2c/0x8c)
[<c00abc50>] (vfs_ioctl+0x2c/0x8c) from [<c00ac2fc>] (do_vfs_ioctl+0x554/0x5b0)
[<c00ac2fc>] (do_vfs_ioctl+0x554/0x5b0) from [<c00ac38c>] (sys_ioctl+0x34/0x54)
[<c00ac38c>] (sys_ioctl+0x34/0x54) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) ++16
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c017b8ac>] (vt_ioctl+0x1168/0x1c0c)
[<c017b8ac>] (vt_ioctl+0x1168/0x1c0c) from [<c017385c>] (tty_ioctl+0x880/0x920)
[<c017385c>] (tty_ioctl+0x880/0x920) from [<c00abc50>] (vfs_ioctl+0x2c/0x8c)
[<c00abc50>] (vfs_ioctl+0x2c/0x8c) from [<c00ac2fc>] (do_vfs_ioctl+0x554/0x5b0)
[<c00ac2fc>] (do_vfs_ioctl+0x554/0x5b0) from [<c00ac38c>] (sys_ioctl+0x34/0x54)
[<c00ac38c>] (sys_ioctl+0x34/0x54) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) --17
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c005ad2c>] (put_pid+0x2c/0x80)
[<c005ad2c>] (put_pid+0x2c/0x80) from [<c00d7dd8>] (proc_delete_inode+0x20/0x4c)
[<c00d7dd8>] (proc_delete_inode+0x20/0x4c) from [<c00b241c>] (generic_delete_inode+0xac/0x150)
[<c00b241c>] (generic_delete_inode+0xac/0x150) from [<c00b1618>] (iput+0x64/0x78)
[<c00b1618>] (iput+0x64/0x78) from [<c00ae854>] (d_kill+0x3c/0x64)
[<c00ae854>] (d_kill+0x3c/0x64) from [<c00aeb00>] (__shrink_dcache_sb+0x284/0x324)
[<c00aeb00>] (__shrink_dcache_sb+0x284/0x324) from [<c00aed9c>] (shrink_dcache_parent+0x2c/0x114)
[<c00aed9c>] (shrink_dcache_parent+0x2c/0x114) from [<c00db418>] (proc_flush_task+0xa4/0x280)
[<c00db418>] (proc_flush_task+0xa4/0x280) from [<c004bac8>] (release_task+0x40/0x3a4)
[<c004bac8>] (release_task+0x40/0x3a4) from [<c004c32c>] (wait_consider_task+0x500/0x9c0)
[<c004c32c>] (wait_consider_task+0x500/0x9c0) from [<c004c8a8>] (do_wait+0xbc/0x284)
[<c004c8a8>] (do_wait+0xbc/0x284) from [<c004cb10>] (sys_wait4+0xa0/0xb8)
[<c004cb10>] (sys_wait4+0xa0/0xb8) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) --16
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c005ad2c>] (put_pid+0x2c/0x80)
[<c005ad2c>] (put_pid+0x2c/0x80) from [<c00d7dd8>] (proc_delete_inode+0x20/0x4c)
[<c00d7dd8>] (proc_delete_inode+0x20/0x4c) from [<c00b241c>] (generic_delete_inode+0xac/0x150)
[<c00b241c>] (generic_delete_inode+0xac/0x150) from [<c00b1618>] (iput+0x64/0x78)
[<c00b1618>] (iput+0x64/0x78) from [<c00ae854>] (d_kill+0x3c/0x64)
[<c00ae854>] (d_kill+0x3c/0x64) from [<c00aeb00>] (__shrink_dcache_sb+0x284/0x324)
[<c00aeb00>] (__shrink_dcache_sb+0x284/0x324) from [<c00aed9c>] (shrink_dcache_parent+0x2c/0x114)
[<c00aed9c>] (shrink_dcache_parent+0x2c/0x114) from [<c00db418>] (proc_flush_task+0xa4/0x280)
[<c00db418>] (proc_flush_task+0xa4/0x280) from [<c004bac8>] (release_task+0x40/0x3a4)
[<c004bac8>] (release_task+0x40/0x3a4) from [<c004c32c>] (wait_consider_task+0x500/0x9c0)
[<c004c32c>] (wait_consider_task+0x500/0x9c0) from [<c004c8a8>] (do_wait+0xbc/0x284)
[<c004c8a8>] (do_wait+0xbc/0x284) from [<c004cb10>] (sys_wait4+0xa0/0xb8)
[<c004cb10>] (sys_wait4+0xa0/0xb8) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) --15
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c005ad2c>] (put_pid+0x2c/0x80)
[<c005ad2c>] (put_pid+0x2c/0x80) from [<c00d7dd8>] (proc_delete_inode+0x20/0x4c)
[<c00d7dd8>] (proc_delete_inode+0x20/0x4c) from [<c00b241c>] (generic_delete_inode+0xac/0x150)
[<c00b241c>] (generic_delete_inode+0xac/0x150) from [<c00b1618>] (iput+0x64/0x78)
[<c00b1618>] (iput+0x64/0x78) from [<c00ae854>] (d_kill+0x3c/0x64)
[<c00ae854>] (d_kill+0x3c/0x64) from [<c00aeb00>] (__shrink_dcache_sb+0x284/0x324)
[<c00aeb00>] (__shrink_dcache_sb+0x284/0x324) from [<c00aed9c>] (shrink_dcache_parent+0x2c/0x114)
[<c00aed9c>] (shrink_dcache_parent+0x2c/0x114) from [<c00db418>] (proc_flush_task+0xa4/0x280)
[<c00db418>] (proc_flush_task+0xa4/0x280) from [<c004bac8>] (release_task+0x40/0x3a4)
[<c004bac8>] (release_task+0x40/0x3a4) from [<c004c32c>] (wait_consider_task+0x500/0x9c0)
[<c004c32c>] (wait_consider_task+0x500/0x9c0) from [<c004c8a8>] (do_wait+0xbc/0x284)
[<c004c8a8>] (do_wait+0xbc/0x284) from [<c004cb10>] (sys_wait4+0xa0/0xb8)
[<c004cb10>] (sys_wait4+0xa0/0xb8) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) --14
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c005ad2c>] (put_pid+0x2c/0x80)
[<c005ad2c>] (put_pid+0x2c/0x80) from [<c00d7dd8>] (proc_delete_inode+0x20/0x4c)
[<c00d7dd8>] (proc_delete_inode+0x20/0x4c) from [<c00b241c>] (generic_delete_inode+0xac/0x150)
[<c00b241c>] (generic_delete_inode+0xac/0x150) from [<c00b1618>] (iput+0x64/0x78)
[<c00b1618>] (iput+0x64/0x78) from [<c00ae854>] (d_kill+0x3c/0x64)
[<c00ae854>] (d_kill+0x3c/0x64) from [<c00aeb00>] (__shrink_dcache_sb+0x284/0x324)
[<c00aeb00>] (__shrink_dcache_sb+0x284/0x324) from [<c00aed9c>] (shrink_dcache_parent+0x2c/0x114)
[<c00aed9c>] (shrink_dcache_parent+0x2c/0x114) from [<c00db418>] (proc_flush_task+0xa4/0x280)
[<c00db418>] (proc_flush_task+0xa4/0x280) from [<c004bac8>] (release_task+0x40/0x3a4)
[<c004bac8>] (release_task+0x40/0x3a4) from [<c004c32c>] (wait_consider_task+0x500/0x9c0)
[<c004c32c>] (wait_consider_task+0x500/0x9c0) from [<c004c8a8>] (do_wait+0xbc/0x284)
[<c004c8a8>] (do_wait+0xbc/0x284) from [<c004cb10>] (sys_wait4+0xa0/0xb8)
[<c004cb10>] (sys_wait4+0xa0/0xb8) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) --13
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c005ad2c>] (put_pid+0x2c/0x80)
[<c005ad2c>] (put_pid+0x2c/0x80) from [<c00d7dd8>] (proc_delete_inode+0x20/0x4c)
[<c00d7dd8>] (proc_delete_inode+0x20/0x4c) from [<c00b241c>] (generic_delete_inode+0xac/0x150)
[<c00b241c>] (generic_delete_inode+0xac/0x150) from [<c00b1618>] (iput+0x64/0x78)
[<c00b1618>] (iput+0x64/0x78) from [<c00ae854>] (d_kill+0x3c/0x64)
[<c00ae854>] (d_kill+0x3c/0x64) from [<c00aeb00>] (__shrink_dcache_sb+0x284/0x324)
[<c00aeb00>] (__shrink_dcache_sb+0x284/0x324) from [<c00aed9c>] (shrink_dcache_parent+0x2c/0x114)
[<c00aed9c>] (shrink_dcache_parent+0x2c/0x114) from [<c00db418>] (proc_flush_task+0xa4/0x280)
[<c00db418>] (proc_flush_task+0xa4/0x280) from [<c004bac8>] (release_task+0x40/0x3a4)
[<c004bac8>] (release_task+0x40/0x3a4) from [<c004c32c>] (wait_consider_task+0x500/0x9c0)
[<c004c32c>] (wait_consider_task+0x500/0x9c0) from [<c004c8a8>] (do_wait+0xbc/0x284)
[<c004c8a8>] (do_wait+0xbc/0x284) from [<c004cb10>] (sys_wait4+0xa0/0xb8)
[<c004cb10>] (sys_wait4+0xa0/0xb8) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) --12
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c005ad2c>] (put_pid+0x2c/0x80)
[<c005ad2c>] (put_pid+0x2c/0x80) from [<c00d7dd8>] (proc_delete_inode+0x20/0x4c)
[<c00d7dd8>] (proc_delete_inode+0x20/0x4c) from [<c00b241c>] (generic_delete_inode+0xac/0x150)
[<c00b241c>] (generic_delete_inode+0xac/0x150) from [<c00b1618>] (iput+0x64/0x78)
[<c00b1618>] (iput+0x64/0x78) from [<c00ae854>] (d_kill+0x3c/0x64)
[<c00ae854>] (d_kill+0x3c/0x64) from [<c00aeb00>] (__shrink_dcache_sb+0x284/0x324)
[<c00aeb00>] (__shrink_dcache_sb+0x284/0x324) from [<c00aed9c>] (shrink_dcache_parent+0x2c/0x114)
[<c00aed9c>] (shrink_dcache_parent+0x2c/0x114) from [<c00db418>] (proc_flush_task+0xa4/0x280)
[<c00db418>] (proc_flush_task+0xa4/0x280) from [<c004bac8>] (release_task+0x40/0x3a4)
[<c004bac8>] (release_task+0x40/0x3a4) from [<c004c32c>] (wait_consider_task+0x500/0x9c0)
[<c004c32c>] (wait_consider_task+0x500/0x9c0) from [<c004c8a8>] (do_wait+0xbc/0x284)
[<c004c8a8>] (do_wait+0xbc/0x284) from [<c004cb10>] (sys_wait4+0xa0/0xb8)
[<c004cb10>] (sys_wait4+0xa0/0xb8) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) --11
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c005ad2c>] (put_pid+0x2c/0x80)
[<c005ad2c>] (put_pid+0x2c/0x80) from [<c00d7dd8>] (proc_delete_inode+0x20/0x4c)
[<c00d7dd8>] (proc_delete_inode+0x20/0x4c) from [<c00b241c>] (generic_delete_inode+0xac/0x150)
[<c00b241c>] (generic_delete_inode+0xac/0x150) from [<c00b1618>] (iput+0x64/0x78)
[<c00b1618>] (iput+0x64/0x78) from [<c00ae854>] (d_kill+0x3c/0x64)
[<c00ae854>] (d_kill+0x3c/0x64) from [<c00aeb00>] (__shrink_dcache_sb+0x284/0x324)
[<c00aeb00>] (__shrink_dcache_sb+0x284/0x324) from [<c00aed9c>] (shrink_dcache_parent+0x2c/0x114)
[<c00aed9c>] (shrink_dcache_parent+0x2c/0x114) from [<c00db418>] (proc_flush_task+0xa4/0x280)
[<c00db418>] (proc_flush_task+0xa4/0x280) from [<c004bac8>] (release_task+0x40/0x3a4)
[<c004bac8>] (release_task+0x40/0x3a4) from [<c004c32c>] (wait_consider_task+0x500/0x9c0)
[<c004c32c>] (wait_consider_task+0x500/0x9c0) from [<c004c8a8>] (do_wait+0xbc/0x284)
[<c004c8a8>] (do_wait+0xbc/0x284) from [<c004cb10>] (sys_wait4+0xa0/0xb8)
[<c004cb10>] (sys_wait4+0xa0/0xb8) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) --10
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c005ad2c>] (put_pid+0x2c/0x80)
[<c005ad2c>] (put_pid+0x2c/0x80) from [<c00d7dd8>] (proc_delete_inode+0x20/0x4c)
[<c00d7dd8>] (proc_delete_inode+0x20/0x4c) from [<c00b241c>] (generic_delete_inode+0xac/0x150)
[<c00b241c>] (generic_delete_inode+0xac/0x150) from [<c00b1618>] (iput+0x64/0x78)
[<c00b1618>] (iput+0x64/0x78) from [<c00ae854>] (d_kill+0x3c/0x64)
[<c00ae854>] (d_kill+0x3c/0x64) from [<c00aeb00>] (__shrink_dcache_sb+0x284/0x324)
[<c00aeb00>] (__shrink_dcache_sb+0x284/0x324) from [<c00aed9c>] (shrink_dcache_parent+0x2c/0x114)
[<c00aed9c>] (shrink_dcache_parent+0x2c/0x114) from [<c00db418>] (proc_flush_task+0xa4/0x280)
[<c00db418>] (proc_flush_task+0xa4/0x280) from [<c004bac8>] (release_task+0x40/0x3a4)
[<c004bac8>] (release_task+0x40/0x3a4) from [<c004c32c>] (wait_consider_task+0x500/0x9c0)
[<c004c32c>] (wait_consider_task+0x500/0x9c0) from [<c004c8a8>] (do_wait+0xbc/0x284)
[<c004c8a8>] (do_wait+0xbc/0x284) from [<c004cb10>] (sys_wait4+0xa0/0xb8)
[<c004cb10>] (sys_wait4+0xa0/0xb8) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) --9
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c005ad2c>] (put_pid+0x2c/0x80)
[<c005ad2c>] (put_pid+0x2c/0x80) from [<c00d7dd8>] (proc_delete_inode+0x20/0x4c)
[<c00d7dd8>] (proc_delete_inode+0x20/0x4c) from [<c00b241c>] (generic_delete_inode+0xac/0x150)
[<c00b241c>] (generic_delete_inode+0xac/0x150) from [<c00b1618>] (iput+0x64/0x78)
[<c00b1618>] (iput+0x64/0x78) from [<c00ae854>] (d_kill+0x3c/0x64)
[<c00ae854>] (d_kill+0x3c/0x64) from [<c00aeb00>] (__shrink_dcache_sb+0x284/0x324)
[<c00aeb00>] (__shrink_dcache_sb+0x284/0x324) from [<c00aed9c>] (shrink_dcache_parent+0x2c/0x114)
[<c00aed9c>] (shrink_dcache_parent+0x2c/0x114) from [<c00db418>] (proc_flush_task+0xa4/0x280)
[<c00db418>] (proc_flush_task+0xa4/0x280) from [<c004bac8>] (release_task+0x40/0x3a4)
[<c004bac8>] (release_task+0x40/0x3a4) from [<c004c32c>] (wait_consider_task+0x500/0x9c0)
[<c004c32c>] (wait_consider_task+0x500/0x9c0) from [<c004c8a8>] (do_wait+0xbc/0x284)
[<c004c8a8>] (do_wait+0xbc/0x284) from [<c004cb10>] (sys_wait4+0xa0/0xb8)
[<c004cb10>] (sys_wait4+0xa0/0xb8) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) --8
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c005ad2c>] (put_pid+0x2c/0x80)
[<c005ad2c>] (put_pid+0x2c/0x80) from [<c00d7dd8>] (proc_delete_inode+0x20/0x4c)
[<c00d7dd8>] (proc_delete_inode+0x20/0x4c) from [<c00b241c>] (generic_delete_inode+0xac/0x150)
[<c00b241c>] (generic_delete_inode+0xac/0x150) from [<c00b1618>] (iput+0x64/0x78)
[<c00b1618>] (iput+0x64/0x78) from [<c00ae854>] (d_kill+0x3c/0x64)
[<c00ae854>] (d_kill+0x3c/0x64) from [<c00aeb00>] (__shrink_dcache_sb+0x284/0x324)
[<c00aeb00>] (__shrink_dcache_sb+0x284/0x324) from [<c00aed9c>] (shrink_dcache_parent+0x2c/0x114)
[<c00aed9c>] (shrink_dcache_parent+0x2c/0x114) from [<c00db418>] (proc_flush_task+0xa4/0x280)
[<c00db418>] (proc_flush_task+0xa4/0x280) from [<c004bac8>] (release_task+0x40/0x3a4)
[<c004bac8>] (release_task+0x40/0x3a4) from [<c004c32c>] (wait_consider_task+0x500/0x9c0)
[<c004c32c>] (wait_consider_task+0x500/0x9c0) from [<c004c8a8>] (do_wait+0xbc/0x284)
[<c004c8a8>] (do_wait+0xbc/0x284) from [<c004cb10>] (sys_wait4+0xa0/0xb8)
[<c004cb10>] (sys_wait4+0xa0/0xb8) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) --7
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c005ad2c>] (put_pid+0x2c/0x80)
[<c005ad2c>] (put_pid+0x2c/0x80) from [<c00d7dd8>] (proc_delete_inode+0x20/0x4c)
[<c00d7dd8>] (proc_delete_inode+0x20/0x4c) from [<c00b241c>] (generic_delete_inode+0xac/0x150)
[<c00b241c>] (generic_delete_inode+0xac/0x150) from [<c00b1618>] (iput+0x64/0x78)
[<c00b1618>] (iput+0x64/0x78) from [<c00ae854>] (d_kill+0x3c/0x64)
[<c00ae854>] (d_kill+0x3c/0x64) from [<c00aeb00>] (__shrink_dcache_sb+0x284/0x324)
[<c00aeb00>] (__shrink_dcache_sb+0x284/0x324) from [<c00aed9c>] (shrink_dcache_parent+0x2c/0x114)
[<c00aed9c>] (shrink_dcache_parent+0x2c/0x114) from [<c00db418>] (proc_flush_task+0xa4/0x280)
[<c00db418>] (proc_flush_task+0xa4/0x280) from [<c004bac8>] (release_task+0x40/0x3a4)
[<c004bac8>] (release_task+0x40/0x3a4) from [<c004c32c>] (wait_consider_task+0x500/0x9c0)
[<c004c32c>] (wait_consider_task+0x500/0x9c0) from [<c004c8a8>] (do_wait+0xbc/0x284)
[<c004c8a8>] (do_wait+0xbc/0x284) from [<c004cb10>] (sys_wait4+0xa0/0xb8)
[<c004cb10>] (sys_wait4+0xa0/0xb8) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) --6
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c005ad2c>] (put_pid+0x2c/0x80)
[<c005ad2c>] (put_pid+0x2c/0x80) from [<c00d7dd8>] (proc_delete_inode+0x20/0x4c)
[<c00d7dd8>] (proc_delete_inode+0x20/0x4c) from [<c00b241c>] (generic_delete_inode+0xac/0x150)
[<c00b241c>] (generic_delete_inode+0xac/0x150) from [<c00b1618>] (iput+0x64/0x78)
[<c00b1618>] (iput+0x64/0x78) from [<c00ae854>] (d_kill+0x3c/0x64)
[<c00ae854>] (d_kill+0x3c/0x64) from [<c00af160>] (dput+0x190/0x1ac)
[<c00af160>] (dput+0x190/0x1ac) from [<c00db48c>] (proc_flush_task+0x118/0x280)
[<c00db48c>] (proc_flush_task+0x118/0x280) from [<c004bac8>] (release_task+0x40/0x3a4)
[<c004bac8>] (release_task+0x40/0x3a4) from [<c004c32c>] (wait_consider_task+0x500/0x9c0)
[<c004c32c>] (wait_consider_task+0x500/0x9c0) from [<c004c8a8>] (do_wait+0xbc/0x284)
[<c004c8a8>] (do_wait+0xbc/0x284) from [<c004cb10>] (sys_wait4+0xa0/0xb8)
[<c004cb10>] (sys_wait4+0xa0/0xb8) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) --5
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c005ad2c>] (put_pid+0x2c/0x80)
[<c005ad2c>] (put_pid+0x2c/0x80) from [<c004cb1c>] (sys_wait4+0xac/0xb8)
[<c004cb1c>] (sys_wait4+0xac/0xb8) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
XXXXX(1333) --4
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c005ad2c>] (put_pid+0x2c/0x80)
[<c005ad2c>] (put_pid+0x2c/0x80) from [<c0078dd8>] (__rcu_process_callbacks+0x1b4/0x244)
[<c0078dd8>] (__rcu_process_callbacks+0x1b4/0x244) from [<c0078ea4>] (rcu_process_callbacks+0x3c/0x68)
[<c0078ea4>] (rcu_process_callbacks+0x3c/0x68) from [<c004edf8>] (__do_softirq+0x8c/0x11c)
[<c004edf8>] (__do_softirq+0x8c/0x11c) from [<c002e3dc>] (do_local_timer+0x50/0x80)
[<c002e3dc>] (do_local_timer+0x50/0x80) from [<c002ebd8>] (__irq_svc+0x38/0xc0)
Exception stack(0xc0389f70 to 0xc0389fb8)
9f60: 00000000 00000000 c0389fb8 00000000
9f80: c0388000 c07e8000 007cf000 00000004 c03af048 410fb020 c03a9c40 00000000
9fa0: 00000001 c0389fb8 c00301f4 c00301f8 60000013 ffffffff
[<c002ebd8>] (__irq_svc+0x38/0xc0) from [<c00301f8>] (default_idle+0x24/0x28)
[<c00301f8>] (default_idle+0x24/0x28) from [<c00306f8>] (cpu_idle+0x84/0xd8)
[<c00306f8>] (cpu_idle+0x84/0xd8) from [<c0008cb4>] (start_kernel+0x2d4/0x330)
[<c0008cb4>] (start_kernel+0x2d4/0x330) from [<70008080>] (0x70008080)
XXXXX(1333) --3
[<c0035964>] (unwind_backtrace+0x0/0xdc) from [<c005ad2c>] (put_pid+0x2c/0x80)
[<c005ad2c>] (put_pid+0x2c/0x80) from [<c017b87c>] (vt_ioctl+0x1138/0x1c0c)
[<c017b87c>] (vt_ioctl+0x1138/0x1c0c) from [<c017385c>] (tty_ioctl+0x880/0x920)
[<c017385c>] (tty_ioctl+0x880/0x920) from [<c00abc50>] (vfs_ioctl+0x2c/0x8c)
[<c00abc50>] (vfs_ioctl+0x2c/0x8c) from [<c00ac2fc>] (do_vfs_ioctl+0x554/0x5b0)
[<c00ac2fc>] (do_vfs_ioctl+0x554/0x5b0) from [<c00ac38c>] (sys_ioctl+0x34/0x54)
[<c00ac38c>] (sys_ioctl+0x34/0x54) from [<c002efc0>] (ret_fast_syscall+0x0/0x28)
10:~# echo scan > /sys/kernel/debug/kmemleak
kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
10:~# cat /sys/kernel/debug/kmemleak
unreferenced object 0xdb58c700 (size 64):
comm "gdm", pid 1331, jiffies 19732
hex dump (first 32 bytes):
02 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 14 16 e6 de 80 ad 05 c0 ................
backtrace:
[<c009d44c>] create_object+0x104/0x20c
[<c009accc>] kmem_cache_alloc+0xc0/0xcc
[<c005addc>] alloc_pid+0x18/0x358
[<c00488b4>] copy_process+0x8a4/0xf00
[<c0049074>] do_fork+0x164/0x2a8
[<c002efc0>] ret_fast_syscall+0x0/0x28
[<ffffffff>] 0xffffffff
Thanks.
--
Catalin