Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 24 Jan 2002 08:19:08 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 24 Jan 2002 08:18:52 -0500 Received: from artax.karlin.mff.cuni.cz ([195.113.31.125]:38414 "EHLO artax.karlin.mff.cuni.cz") by vger.kernel.org with ESMTP id ; Thu, 24 Jan 2002 08:18:38 -0500 Date: Thu, 24 Jan 2002 14:18:35 +0100 From: Jan Hudec To: linux-kernel@vger.kernel.org Subject: Re: 2.4.17 OOPS in tty code. Message-ID: <20020124141835.B31324@artax.karlin.mff.cuni.cz> Mail-Followup-To: Jan Hudec , linux-kernel@vger.kernel.org Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="i9LlY+UWpKt15+FH" Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <009101c1a2cf$704da030$0801a8c0@Stev.org>; from mail-lists@stev.org on Mon, Jan 21, 2002 at 11:00:36PM -0000 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --i9LlY+UWpKt15+FH Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hello, Sorry for the late rpely. I have a bit complicated acces to mail. Here are some traces for the OOPS. I added following suggested patch: --- linux-2.4.18-pre4/drivers/char/tty_io.c Tue Jan 15 15:08:24 2002 +++ linux-akpm-1/drivers/char/tty_io.c Mon Jan 21 15:23:32 2002 @@ -1266,8 +1266,14 @@ static void release_dev(struct file * fi /* * Make sure that the tty's task queue isn't activated. */ + if (test_bit(TTY_DONT_FLIP, &tty->flags)) + BUG(); run_task_queue(&tq_timer); + if (tty->flip.tqueue.sync) + BUG(); flush_scheduled_tasks(); + if (tty->flip.tqueue.sync) + BUG(); and none of the bugs was triggered. I also added printks to some functions to print argument values on entry (and return from alloc_tty_struct). For every call to function tty_flip_buffer_push I added a breakpoint to print full backrtrace. This is backtrace in actual segfault: Breakpoint 1, panic (fmt=0xa0146420 "Kernel mode fault at addr 0x%lx, ip 0x%lx") at panic.c:45 45 { (gdb) bt #0 panic (fmt=0xa0146420 "Kernel mode fault at addr 0x%lx, ip 0x%lx") at panic.c:45 #1 0xa00c578c in segv (address=0, ip=2684428006, is_write=0, is_user=0) at trap_kern.c:94 #2 0xa00c63ea in segv_handler (sig=11, sc=0xa0893ae0, usermode=0) at trap_user.c:369 #3 0xa00c6575 in sig_handler (sig=11, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 2693587200, esi = 2693348808, ebp = 2693348816, esp = 2693348792, ebx = 0, edx = 0, ecx = 2693348576, eax = 0, trapno = 14, err = 4, eip = 2684428006, cs = 35, __csh = 0, eflags = 2163219, esp_at_signal = 2693348792, ss = 43, __ssh = 0, fpstate = 0xa0893b38, oldmask = 134217728, cr2 = 0}) at trap_user.c:428 #4 #5 __run_task_queue (list=0xa0169330) at softirq.c:352 #6 0xa00701d9 in release_dev (filp=0xa25d7340) at /usr/home/bulb/umlinux/include/linux/tqueue.h:122 #7 0xa0070629 in tty_release (inode=0xa08d1080, filp=0xa25d7340) at tty_io.c:1440 #8 0xa002aa25 in fput (file=0xa25d7340) at file_table.c:113 #9 0xa0029ac7 in filp_close (filp=0xa25d7340, id=0xa0171840) at open.c:838 #10 0xa0029b1c in sys_close (fd=0) at open.c:862 #11 0xa00c4575 in execute_syscall (regs={regs = {0, 2048, 1, 0, 2684353436, 2684353084, 4294967258, 43, 43, 0, 0, 6, 1074649757, 35, 2097799, 2684353040, 43}}) at syscall_kern.c:326 #12 0xa00c4671 in syscall_handler (unused=0x0) at syscall_user.c:70 I attach output on console (including debuging printks - each is first line in named function except for alloc_tty_struct, where it's the last one. The debugger output contains backtraces of all entries to tty_flip_buffer_push for the same session. In the session I just waited for the shell to start (it's started directly from inittab) and then quickly typed halt and . The um-kernel was compiled with attached config. The host kernel was 2.4.13-ac8. inittab, rc and rcS scripts used in the session are included. All binaries (including /sbin/halt) are copied from debian (unstable) installation (last updated about a month ago). -------------------------------------------------------------------------------- - Jan Hudec `Bulb' --i9LlY+UWpKt15+FH Content-Type: text/plain; charset=us-ascii Content-Description: output_on_console Content-Disposition: attachment; filename=output Linux version 2.4.17-5um (bulb@vagabond) (gcc version 2.95.4 20011006 (Debian prerelease)) #13 St led 23 13:47:27 CET 2002 On node 0 totalpages: 8192 zone(0): 0 pages. zone(1): 8192 pages. zone(2): 0 pages. Kernel command line: eth0=tuntap,,fe:fd:0:0:0:1,192.168.1.254 umid=schizofrenia ubd1=./swap_dev mem=32M debug root=/dev/ubd0 Calibrating delay loop... 25.39 BogoMIPS Memory: 32244k available Dentry-cache hash table entries: 4096 (order: 3, 32768 bytes) Inode-cache hash table entries: 2048 (order: 2, 16384 bytes) Mount-cache hash table entries: 512 (order: 0, 4096 bytes) Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes) Page-cache hash table entries: 8192 (order: 3, 32768 bytes) POSIX conformance testing by UNIFIX Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 Initializing RT netlink socket Starting kswapd devfs: v1.7 (20011216) Richard Gooch (rgooch@atnf.csiro.au) devfs: boot_options: 0x1 pty: 256 Unix98 ptys configured block: 64 slots per queue, batch=16 RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize Netdevice 0 : TUN/TAP backend - IP = 192.168.1.254 ether = fe:fd:0:0:0:1 loop: loaded (max 8 devices) NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP IP: routing cache hash table of 512 buckets, 4Kbytes TCP: Hash tables configured (established 2048 bind 2048) NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. Initializing stdio console driver Initializing software serial port version 1 mconsole initialized on /tmp/uml/schizofrenia/mconsole VFS: Mounted root (ext2 filesystem) readonly. Mounted devfs on /dev DBG: alloc_tty_struct() = a08ce000 DBG: initialize_tty_struct(tty = a08ce000) DBG: release_mem(tty = a08ce000, idx = 0) DBG: free_tty_struct(tty = a08ce000) DBG: alloc_tty_struct() = a08ce000 DBG: initialize_tty_struct(tty = a08ce000) DBG: release_mem(tty = a08ce000, idx = 0) DBG: free_tty_struct(tty = a08ce000) DBG: alloc_tty_struct() = a08ce000 DBG: initialize_tty_struct(tty = a08ce000) INIT: DBG: release_mem(tty = a08ce000, idx = 0) DBG: free_tty_struct(tty = a08ce000) DBG: alloc_tty_struct() = a08ce000 DBG: initialize_tty_struct(tty = a08ce000) version 2.84 bootingDBG: release_mem(tty = a08ce000, idx = 0) DBG: free_tty_struct(tty = a08ce000) DBG: alloc_tty_struct() = a08ce000 DBG: initialize_tty_struct(tty = a08ce000) DBG: release_mem(tty = a08ce000, idx = 0) DBG: free_tty_struct(tty = a08ce000) DBG: alloc_tty_struct() = a08ce000 DBG: initialize_tty_struct(tty = a08ce000) Adding Swap: 32760k swap-space (priority -1) * insmod tun insmod: a module named tun already exists Using /lib/modules/2.4.13-ac8/kernel/drivers/net/tun.o * ifconfig tap0 192.168.1.254 netmask 255.255.255.255 up * bash -c echo 1 > /proc/sys/net/ipv4/ip_forward * route add -host 192.168.1.253 dev tap0 * bash -c echo 1 > /proc/sys/net/ipv4/conf/tap0/proxy_arp * arp -Ds 192.168.1.253 eth0 pub * route del -host 192.168.1.253 dev tap0 * bash -c echo 0 > /proc/sys/net/ipv4/conf/tap0/proxy_arp * arp -i eth0 -d 192.168.1.253 pub * route add -host 192.168.1.253 dev tap0 * bash -c echo 1 > /proc/sys/net/ipv4/conf/tap0/proxy_arp mke2fs 1.25 (20-Sep-2001) mount: proc already mounted on /proc /dev/rd/0 on /tmp type ext2 (rw) lockdsvc: Function not implemented 192.168.1.2:/home/bulb/c/dfs on /dfs type nfs (ro,addr=192.168.1.2) 192.168.1.2:/home/bulb/uml on /uml type nfs (ro,addr=192.168.1.2) DBG: release_mem(tty = a08ce000, idx = 0) DBG: free_tty_struct(tty = a08ce000) DBG: alloc_tty_struct() = a08ce000 DBG: initialize_tty_struct(tty = a08ce000) DBG: release_mem(tty = a08ce000, idx = 0) DBG: free_tty_struct(tty = a08ce000) DBG: alloc_tty_struct() = a08ce000 DBG: initialize_tty_struct(tty = a08ce000) DBG: release_mem(tty = a08ce000, idx = 0) DBG: free_tty_struct(tty = a08ce000) DBG: alloc_tty_struct() = a08ce000 DBG: initialize_tty_struct(tty = a08ce000) INIT: DBG: release_mem(tty = a08ce000, idx = 0) DBG: free_tty_struct(tty = a08ce000) DBG: alloc_tty_struct() = a08ce000 DBG: initialize_tty_struct(tty = a08ce000) Entering runlevel: 2DBG: release_mem(tty = a08ce000, idx = 0) DBG: free_tty_struct(tty = a08ce000) DBG: alloc_tty_struct() = a08ce000 DBG: initialize_tty_struct(tty = a08ce000) DBG: release_mem(tty = a08ce000, idx = 0) DBG: free_tty_struct(tty = a08ce000) DBG: alloc_tty_struct() = a08ce000 DBG: initialize_tty_struct(tty = a08ce000) DBG: release_mem(tty = a08ce000, idx = 0) DBG: free_tty_struct(tty = a08ce000) DBG: alloc_tty_struct() = a08ce000 DBG: initialize_tty_struct(tty = a08ce000) DBG: alloc_tty_struct() = a25de000 DBG: initialize_tty_struct(tty = a25de000) DBG: release_mem(tty = a08ce000, idx = 0) DBG: free_tty_struct(tty = a08ce000) DBG: tty_flip_buffer_push(tty = a08ce000) low latency DBG: flush_to_ldisc(tty = a08ce000) REQUEUE DBG: tty_flip_buffer_push(tty = a08ce000) low latency DBG: flush_to_ldisc(tty = a08ce000) REQUEUE DBG: tty_flip_buffer_push(tty = a25de000) QUEUEING! DBG: tty_flip_buffer_push(tty = a08ce000) low latency DBG: flush_to_ldisc(tty = a08ce000) REQUEUE DBG: tty_flip_buffer_push(tty = a08ce000) low latency DBG: flush_to_ldisc(tty = a08ce000) REQUEUE DBG: tty_flip_buffer_push(tty = a25de000) QUEUEING! DBG: flush_to_ldisc(tty = a08ce000) REQUEUE DBG: flush_to_ldisc(tty = a25de000) FLUSH DBG: alloc_tty_struct() = a08ce000 DBG: initialize_tty_struct(tty = a08ce000) DBG: flush_to_ldisc(tty = a08ce000) FLUSH Kernel panic: Kernel mode fault at addr 0x0, ip 0xa0011ee6 --i9LlY+UWpKt15+FH Content-Type: text/plain; charset=us-ascii Content-Description: debugger_output Content-Disposition: attachment; filename=debugger GNU gdb 5.1 0xa00d2071 in kill () at af_unix.c:1790 1790 } Breakpoint 1 at 0xa000d017: file panic.c, line 45. Breakpoint 2 at 0xa00c740e: file user_util.c, line 159. Breakpoint 3 at 0xa00035a7: file init/main.c, line 553. Breakpoint 3, start_kernel () at init/main.c:553 553 printk(linux_banner); (gdb) b tty_flip_buffer_push Breakpoint 4 at 0xa007158c: file tty_io.c, line 1980. (gdb) comm Type commands for when breakpoint 4 is hit, one per line. End with a line saying just "end". >bt >c >end (gdb) c Continuing. Breakpoint 4, tty_flip_buffer_push (tty=0xa08ce000) at tty_io.c:1980 1980 { #0 tty_flip_buffer_push (tty=0xa08ce000) at tty_io.c:1980 #1 0xa00cf88c in chan_interrupt (chans=0xa01746c8, tty=0xa08ce000) at chan_kern.c:304 #2 0xa00c9a7a in console_interrupt (irq=2, dev=0xa01746c0, unused=0xa0167b70) at stdio_console.c:95 #3 0xa00c1b67 in handle_IRQ_event (irq=2, regs=0xa0167b70, action=0xa08844c0) at irq.c:152 #4 0xa00c1d1e in do_IRQ (irq=2, user_mode=0) at irq.c:317 #5 0xa00c23bb in sigio_handler (sig=29, sc=0xa0167c00, usermode=0) at irq_user.c:66 #6 0xa00c648c in irq_handler (sig=29, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 2685812736, esi = 2685812736, ebp = 2685828864, esp = 2685828820, ebx = 2685828856, edx = 2685812736, ecx = 2685828856, eax = 4294967292, trapno = 1, err = 0, eip = 2685288305, cs = 35, __csh = 0, eflags = 2097811, esp_at_signal = 2685828820, ss = 43, __ssh = 0, fpstate = 0xa0167c58, oldmask = 0, cr2 = 0}) at trap_user.c:404 #7 #8 0xa00e3f71 in nanosleep () at af_unix.c:1790 #9 0xa00c4d88 in idle_sleep (secs=10) at time.c:108 #10 0xa00c8339 in cpu_idle () at process_kern.c:465 #11 0xa000a491 in rest_init () at init/main.c:536 #12 0xa00036b7 in start_kernel () at init/main.c:623 #13 0xa00c69d7 in start_kernel_proc (unused=0x0) at um_arch.c:130 #14 0xa00c5dcb in signal_tramp (arg=0xa00c6998) at trap_user.c:83 Breakpoint 4, tty_flip_buffer_push (tty=0xa08ce000) at tty_io.c:1980 1980 { #0 tty_flip_buffer_push (tty=0xa08ce000) at tty_io.c:1980 #1 0xa00cf88c in chan_interrupt (chans=0xa01746c8, tty=0xa08ce000) at chan_kern.c:304 #2 0xa00c9a7a in console_interrupt (irq=2, dev=0xa01746c0, unused=0xa0167b70) at stdio_console.c:95 #3 0xa00c1b67 in handle_IRQ_event (irq=2, regs=0xa0167b70, action=0xa08844c0) at irq.c:152 #4 0xa00c1d1e in do_IRQ (irq=2, user_mode=0) at irq.c:317 #5 0xa00c23bb in sigio_handler (sig=29, sc=0xa0167c00, usermode=0) at irq_user.c:66 #6 0xa00c648c in irq_handler (sig=29, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 2685812736, esi = 2685812736, ebp = 2685828864, esp = 2685828820, ebx = 2685828856, edx = 2685812736, ecx = 2685828856, eax = 4294967292, trapno = 1, err = 0, eip = 2685288305, cs = 35, __csh = 0, eflags = 2097811, esp_at_signal = 2685828820, ss = 43, __ssh = 0, fpstate = 0xa0167c58, oldmask = 0, cr2 = 0}) at trap_user.c:404 #7 #8 0xa00e3f71 in nanosleep () at af_unix.c:1790 #9 0xa00c4d88 in idle_sleep (secs=10) at time.c:108 #10 0xa00c8339 in cpu_idle () at process_kern.c:465 #11 0xa000a491 in rest_init () at init/main.c:536 #12 0xa00036b7 in start_kernel () at init/main.c:623 #13 0xa00c69d7 in start_kernel_proc (unused=0x0) at um_arch.c:130 #14 0xa00c5dcb in signal_tramp (arg=0xa00c6998) at trap_user.c:83 Breakpoint 4, tty_flip_buffer_push (tty=0xa25de000) at tty_io.c:1980 1980 { #0 tty_flip_buffer_push (tty=0xa25de000) at tty_io.c:1980 #1 0xa00cf88c in chan_interrupt (chans=0xa01746f4, tty=0xa25de000) at chan_kern.c:304 #2 0xa00c9a7a in console_interrupt (irq=2, dev=0xa01746ec, unused=0xa0167b70) at stdio_console.c:95 #3 0xa00c1b67 in handle_IRQ_event (irq=2, regs=0xa0167b70, action=0xa08844c0) at irq.c:152 #4 0xa00c1d1e in do_IRQ (irq=2, user_mode=0) at irq.c:317 #5 0xa00c23bb in sigio_handler (sig=29, sc=0xa0167c00, usermode=0) at irq_user.c:66 #6 0xa00c648c in irq_handler (sig=29, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 2685812736, esi = 2685812736, ebp = 2685828864, esp = 2685828820, ebx = 2685828856, edx = 2685812736, ecx = 2685828856, eax = 4294967292, trapno = 1, err = 0, eip = 2685288305, cs = 35, __csh = 0, eflags = 2097811, esp_at_signal = 2685828820, ss = 43, __ssh = 0, fpstate = 0xa0167c58, oldmask = 0, cr2 = 0}) at trap_user.c:404 #7 #8 0xa00e3f71 in nanosleep () at af_unix.c:1790 #9 0xa00c4d88 in idle_sleep (secs=10) at time.c:108 #10 0xa00c8339 in cpu_idle () at process_kern.c:465 #11 0xa000a491 in rest_init () at init/main.c:536 #12 0xa00036b7 in start_kernel () at init/main.c:623 #13 0xa00c69d7 in start_kernel_proc (unused=0x0) at um_arch.c:130 #14 0xa00c5dcb in signal_tramp (arg=0xa00c6998) at trap_user.c:83 Breakpoint 4, tty_flip_buffer_push (tty=0xa08ce000) at tty_io.c:1980 1980 { #0 tty_flip_buffer_push (tty=0xa08ce000) at tty_io.c:1980 #1 0xa00cf88c in chan_interrupt (chans=0xa01746c8, tty=0xa08ce000) at chan_kern.c:304 #2 0xa00c9a7a in console_interrupt (irq=2, dev=0xa01746c0, unused=0xa01676d0) at stdio_console.c:95 #3 0xa00c1b67 in handle_IRQ_event (irq=2, regs=0xa01676d0, action=0xa08844c0) at irq.c:152 #4 0xa00c1d1e in do_IRQ (irq=2, user_mode=0) at irq.c:317 #5 0xa00c23bb in sigio_handler (sig=29, sc=0xa0167760, usermode=0) at irq_user.c:66 #6 0xa00c648c in irq_handler (sig=29, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 1, esi = 8, ebp = 2685827668, esp = 2685827640, ebx = 1, edx = 0, ecx = 2685827716, eax = 0, trapno = 1, err = 0, eip = 2685214708, cs = 35, __csh = 0, eflags = 2097734, esp_at_signal = 2685827640, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 0, cr2 = 0}) at trap_user.c:404 #7 #8 0xa00d1ff4 in sigprocmask () at af_unix.c:1790 #9 0xa00c38a9 in change_signals (type=1) at signal_user.c:174 #10 0xa00c38f4 in unblock_signals () at signal_user.c:185 #11 0xa0011a7f in do_softirq () at softirq.c:84 #12 0xa00c1d50 in do_IRQ (irq=2, user_mode=0) at irq.c:334 #13 0xa00c23bb in sigio_handler (sig=29, sc=0xa0167c00, usermode=0) at irq_user.c:66 #14 0xa00c648c in irq_handler (sig=29, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 2685812736, esi = 2685812736, ebp = 2685828864, esp = 2685828820, ebx = 2685828856, edx = 2685812736, ecx = 2685828856, eax = 4294967292, trapno = 1, err = 0, eip = 2685288305, cs = 35, __csh = 0, eflags = 2097811, esp_at_signal = 2685828820, ss = 43, __ssh = 0, fpstate = 0xa0167c58, oldmask = 0, cr2 = 0}) at trap_user.c:404 #15 #16 0xa00e3f71 in nanosleep () at af_unix.c:1790 #17 0xa00c4d88 in idle_sleep (secs=10) at time.c:108 #18 0xa00c8339 in cpu_idle () at process_kern.c:465 #19 0xa000a491 in rest_init () at init/main.c:536 #20 0xa00036b7 in start_kernel () at init/main.c:623 #21 0xa00c69d7 in start_kernel_proc (unused=0x0) at um_arch.c:130 #22 0xa00c5dcb in signal_tramp (arg=0xa00c6998) at trap_user.c:83 Breakpoint 4, tty_flip_buffer_push (tty=0xa08ce000) at tty_io.c:1980 1980 { #0 tty_flip_buffer_push (tty=0xa08ce000) at tty_io.c:1980 #1 0xa00cf88c in chan_interrupt (chans=0xa01746c8, tty=0xa08ce000) at chan_kern.c:304 #2 0xa00c9a7a in console_interrupt (irq=2, dev=0xa01746c0, unused=0xa01676d0) at stdio_console.c:95 #3 0xa00c1b67 in handle_IRQ_event (irq=2, regs=0xa01676d0, action=0xa08844c0) at irq.c:152 #4 0xa00c1d1e in do_IRQ (irq=2, user_mode=0) at irq.c:317 #5 0xa00c23bb in sigio_handler (sig=29, sc=0xa0167760, usermode=0) at irq_user.c:66 #6 0xa00c648c in irq_handler (sig=29, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 1, esi = 8, ebp = 2685827668, esp = 2685827640, ebx = 1, edx = 0, ecx = 2685827716, eax = 0, trapno = 1, err = 0, eip = 2685214708, cs = 35, __csh = 0, eflags = 2097734, esp_at_signal = 2685827640, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 0, cr2 = 0}) at trap_user.c:404 #7 #8 0xa00d1ff4 in sigprocmask () at af_unix.c:1790 #9 0xa00c38a9 in change_signals (type=1) at signal_user.c:174 #10 0xa00c38f4 in unblock_signals () at signal_user.c:185 #11 0xa0011a7f in do_softirq () at softirq.c:84 #12 0xa00c1d50 in do_IRQ (irq=2, user_mode=0) at irq.c:334 #13 0xa00c23bb in sigio_handler (sig=29, sc=0xa0167c00, usermode=0) at irq_user.c:66 #14 0xa00c648c in irq_handler (sig=29, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 2685812736, esi = 2685812736, ebp = 2685828864, esp = 2685828820, ebx = 2685828856, edx = 2685812736, ecx = 2685828856, eax = 4294967292, trapno = 1, err = 0, eip = 2685288305, cs = 35, __csh = 0, eflags = 2097811, esp_at_signal = 2685828820, ss = 43, __ssh = 0, fpstate = 0xa0167c58, oldmask = 0, cr2 = 0}) at trap_user.c:404 #15 #16 0xa00e3f71 in nanosleep () at af_unix.c:1790 #17 0xa00c4d88 in idle_sleep (secs=10) at time.c:108 #18 0xa00c8339 in cpu_idle () at process_kern.c:465 #19 0xa000a491 in rest_init () at init/main.c:536 #20 0xa00036b7 in start_kernel () at init/main.c:623 #21 0xa00c69d7 in start_kernel_proc (unused=0x0) at um_arch.c:130 #22 0xa00c5dcb in signal_tramp (arg=0xa00c6998) at trap_user.c:83 Breakpoint 4, tty_flip_buffer_push (tty=0xa25de000) at tty_io.c:1980 1980 { #0 tty_flip_buffer_push (tty=0xa25de000) at tty_io.c:1980 #1 0xa00cf88c in chan_interrupt (chans=0xa01746f4, tty=0xa25de000) at chan_kern.c:304 #2 0xa00c9a7a in console_interrupt (irq=2, dev=0xa01746ec, unused=0xa01676d0) at stdio_console.c:95 #3 0xa00c1b67 in handle_IRQ_event (irq=2, regs=0xa01676d0, action=0xa08844c0) at irq.c:152 #4 0xa00c1d1e in do_IRQ (irq=2, user_mode=0) at irq.c:317 #5 0xa00c23bb in sigio_handler (sig=29, sc=0xa0167760, usermode=0) at irq_user.c:66 #6 0xa00c648c in irq_handler (sig=29, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 1, esi = 8, ebp = 2685827668, esp = 2685827640, ebx = 1, edx = 0, ecx = 2685827716, eax = 0, trapno = 1, err = 0, eip = 2685214708, cs = 35, __csh = 0, eflags = 2097734, esp_at_signal = 2685827640, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 0, cr2 = 0}) at trap_user.c:404 #7 #8 0xa00d1ff4 in sigprocmask () at af_unix.c:1790 #9 0xa00c38a9 in change_signals (type=1) at signal_user.c:174 #10 0xa00c38f4 in unblock_signals () at signal_user.c:185 #11 0xa0011a7f in do_softirq () at softirq.c:84 #12 0xa00c1d50 in do_IRQ (irq=2, user_mode=0) at irq.c:334 #13 0xa00c23bb in sigio_handler (sig=29, sc=0xa0167c00, usermode=0) at irq_user.c:66 #14 0xa00c648c in irq_handler (sig=29, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 2685812736, esi = 2685812736, ebp = 2685828864, esp = 2685828820, ebx = 2685828856, edx = 2685812736, ecx = 2685828856, eax = 4294967292, trapno = 1, err = 0, eip = 2685288305, cs = 35, __csh = 0, eflags = 2097811, esp_at_signal = 2685828820, ss = 43, __ssh = 0, fpstate = 0xa0167c58, oldmask = 0, cr2 = 0}) at trap_user.c:404 #15 #16 0xa00e3f71 in nanosleep () at af_unix.c:1790 #17 0xa00c4d88 in idle_sleep (secs=10) at time.c:108 #18 0xa00c8339 in cpu_idle () at process_kern.c:465 #19 0xa000a491 in rest_init () at init/main.c:536 #20 0xa00036b7 in start_kernel () at init/main.c:623 #21 0xa00c69d7 in start_kernel_proc (unused=0x0) at um_arch.c:130 #22 0xa00c5dcb in signal_tramp (arg=0xa00c6998) at trap_user.c:83 Breakpoint 1, panic (fmt=0xa0146420 "Kernel mode fault at addr 0x%lx, ip 0x%lx") at panic.c:45 45 { (gdb) bt #0 panic (fmt=0xa0146420 "Kernel mode fault at addr 0x%lx, ip 0x%lx") at panic.c:45 #1 0xa00c578c in segv (address=0, ip=2684428006, is_write=0, is_user=0) at trap_kern.c:94 #2 0xa00c63ea in segv_handler (sig=11, sc=0xa0893ae0, usermode=0) at trap_user.c:369 #3 0xa00c6575 in sig_handler (sig=11, sc={gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 2693587200, esi = 2693348808, ebp = 2693348816, esp = 2693348792, ebx = 0, edx = 0, ecx = 2693348576, eax = 0, trapno = 14, err = 4, eip = 2684428006, cs = 35, __csh = 0, eflags = 2163219, esp_at_signal = 2693348792, ss = 43, __ssh = 0, fpstate = 0xa0893b38, oldmask = 134217728, cr2 = 0}) at trap_user.c:428 #4 #5 __run_task_queue (list=0xa0169330) at softirq.c:352 #6 0xa00701d9 in release_dev (filp=0xa25d7340) at /usr/home/bulb/umlinux/include/linux/tqueue.h:122 #7 0xa0070629 in tty_release (inode=0xa08d1080, filp=0xa25d7340) at tty_io.c:1440 #8 0xa002aa25 in fput (file=0xa25d7340) at file_table.c:113 #9 0xa0029ac7 in filp_close (filp=0xa25d7340, id=0xa0171840) at open.c:838 #10 0xa0029b1c in sys_close (fd=0) at open.c:862 #11 0xa00c4575 in execute_syscall (regs={regs = {0, 2048, 1, 0, 2684353436, 2684353084, 4294967258, 43, 43, 0, 0, 6, 1074649757, 35, 2097799, 2684353040, 43}}) at syscall_kern.c:326 #12 0xa00c4671 in syscall_handler (unused=0x0) at syscall_user.c:70 (gdb) c Continuing. [here it printed the last message on console and stopped] --i9LlY+UWpKt15+FH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=".config" # # Automatically generated by make menuconfig: don't edit # CONFIG_USERMODE=y # CONFIG_ISA is not set # CONFIG_SBUS is not set # CONFIG_PCI is not set CONFIG_UID16=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y # # Code maturity level options # CONFIG_EXPERIMENTAL=y # # General Setup # CONFIG_STDIO_CONSOLE=y CONFIG_NET=y CONFIG_SYSVIPC=y # CONFIG_BSD_PROCESS_ACCT is not set CONFIG_SYSCTL=y # CONFIG_BINFMT_AOUT is not set CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=y CONFIG_UNIX98_PTYS=y CONFIG_UNIX98_PTY_COUNT=256 CONFIG_SSL=y # CONFIG_HOSTFS is not set CONFIG_MCONSOLE=y CONFIG_MAGIC_SYSRQ=y # CONFIG_HOST_2G_2G is not set # CONFIG_SMP is not set # # Loadable module support # CONFIG_MODULES=y CONFIG_KMOD=y # # Devices # CONFIG_BLK_DEV_UBD=y # CONFIG_BLK_DEV_UBD_SYNC is not set CONFIG_BLK_DEV_LOOP=y # CONFIG_BLK_DEV_NBD is not set CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_SIZE=4096 # CONFIG_BLK_DEV_INITRD is not set # CONFIG_MMAPPER is not set # # Networking options # # CONFIG_PACKET is not set # CONFIG_NETLINK_DEV is not set # CONFIG_NETFILTER is not set # CONFIG_FILTER is not set CONFIG_UNIX=y CONFIG_INET=y # CONFIG_IP_MULTICAST is not set # CONFIG_IP_ADVANCED_ROUTER is not set # CONFIG_IP_PNP is not set # CONFIG_NET_IPIP is not set # CONFIG_NET_IPGRE is not set # CONFIG_ARPD is not set # CONFIG_INET_ECN is not set # CONFIG_SYN_COOKIES is not set # CONFIG_IPV6 is not set # CONFIG_KHTTPD is not set # CONFIG_ATM is not set # CONFIG_VLAN_8021Q is not set # CONFIG_IPX is not set # CONFIG_ATALK is not set # CONFIG_DECNET is not set # CONFIG_BRIDGE is not set # CONFIG_X25 is not set # CONFIG_LAPB is not set # CONFIG_LLC is not set # CONFIG_NET_DIVERT is not set # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_NET_FASTROUTE is not set # CONFIG_NET_HW_FLOWCONTROL is not set # # QoS and/or fair queueing # # CONFIG_NET_SCHED is not set # # Network device support # CONFIG_UML_NET=y CONFIG_UML_NET_ETHERTAP=y CONFIG_UML_NET_TUNTAP=y # CONFIG_UML_NET_SLIP is not set # CONFIG_UML_NET_DAEMON is not set # CONFIG_UML_NET_MCAST is not set CONFIG_NETDEVICES=y # # ARCnet devices # # CONFIG_ARCNET is not set # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_EQUALIZER is not set # CONFIG_TUN is not set # CONFIG_ETHERTAP is not set # # Ethernet (10 or 100Mbit) # # CONFIG_NET_ETHERNET is not set # # Ethernet (1000 Mbit) # # CONFIG_ACENIC is not set # CONFIG_DL2K is not set # CONFIG_MYRI_SBUS is not set # CONFIG_NS83820 is not set # CONFIG_HAMACHI is not set # CONFIG_YELLOWFIN is not set # CONFIG_SK98LIN is not set # CONFIG_FDDI is not set # CONFIG_HIPPI is not set # CONFIG_PLIP is not set # CONFIG_PPP is not set # CONFIG_SLIP is not set # # Wireless LAN (non-hamradio) # # CONFIG_NET_RADIO is not set # # Token Ring devices # # CONFIG_TR is not set # CONFIG_NET_FC is not set # CONFIG_RCPCI is not set # CONFIG_SHAPER is not set # # Wan interfaces # # CONFIG_WAN is not set # # File systems # # CONFIG_QUOTA is not set # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set # CONFIG_REISERFS_FS is not set # CONFIG_REISERFS_CHECK is not set # CONFIG_REISERFS_PROC_INFO is not set # CONFIG_ADFS_FS is not set # CONFIG_ADFS_FS_RW is not set # CONFIG_AFFS_FS is not set # CONFIG_HFS_FS is not set # CONFIG_BFS_FS is not set # CONFIG_EXT3_FS is not set # CONFIG_JBD is not set # CONFIG_JBD_DEBUG is not set # CONFIG_FAT_FS is not set # CONFIG_MSDOS_FS is not set # CONFIG_UMSDOS_FS is not set # CONFIG_VFAT_FS is not set # CONFIG_EFS_FS is not set # CONFIG_JFFS_FS is not set # CONFIG_JFFS2_FS is not set # CONFIG_CRAMFS is not set # CONFIG_TMPFS is not set # CONFIG_RAMFS is not set # CONFIG_ISO9660_FS is not set # CONFIG_JOLIET is not set # CONFIG_ZISOFS is not set # CONFIG_MINIX_FS is not set # CONFIG_VXFS_FS is not set # CONFIG_NTFS_FS is not set # CONFIG_NTFS_RW is not set # CONFIG_HPFS_FS is not set CONFIG_PROC_FS=y CONFIG_DEVFS_FS=y CONFIG_DEVFS_MOUNT=y # CONFIG_DEVFS_DEBUG is not set CONFIG_DEVPTS_FS=y # CONFIG_QNX4FS_FS is not set # CONFIG_QNX4FS_RW is not set # CONFIG_ROMFS_FS is not set CONFIG_EXT2_FS=y # CONFIG_SYSV_FS is not set # CONFIG_UDF_FS is not set # CONFIG_UDF_RW is not set # CONFIG_UFS_FS is not set # CONFIG_UFS_FS_WRITE is not set # # Network File Systems # # CONFIG_CODA_FS is not set # CONFIG_INTERMEZZO_FS is not set CONFIG_NFS_FS=y CONFIG_NFS_V3=y # CONFIG_ROOT_NFS is not set # CONFIG_NFSD is not set # CONFIG_NFSD_V3 is not set CONFIG_SUNRPC=y CONFIG_LOCKD=y CONFIG_LOCKD_V4=y # CONFIG_SMB_FS is not set # CONFIG_NCP_FS is not set # CONFIG_NCPFS_PACKET_SIGNING is not set # CONFIG_NCPFS_IOCTL_LOCKING is not set # CONFIG_NCPFS_STRONG is not set # CONFIG_NCPFS_NFS_NS is not set # CONFIG_NCPFS_OS2_NS is not set # CONFIG_NCPFS_SMALLDOS is not set # CONFIG_NCPFS_NLS is not set # CONFIG_NCPFS_EXTRAS is not set # CONFIG_ZISOFS_FS is not set # CONFIG_ZLIB_FS_INFLATE is not set # # Partition Types # # CONFIG_PARTITION_ADVANCED is not set CONFIG_MSDOS_PARTITION=y # CONFIG_SMB_NLS is not set # CONFIG_NLS is not set # # Kernel hacking # # CONFIG_DEBUG_SLAB is not set CONFIG_DEBUGSYM=y CONFIG_PT_PROXY=y # CONFIG_GPROF is not set # CONFIG_GCOV is not set --i9LlY+UWpKt15+FH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=inittab # /etc/inittab: init(8) configuration. # $Id: inittab,v 1.8 1998/05/10 10:37:50 miquels Exp $ # The default runlevel. id:2:initdefault: # Boot-time system configuration/initialization script. # This is run first except when booting in emergency (-b) mode. si::sysinit:/etc/init.d/rcS # What to do in single-user mode. ~~:S:wait:/bin/bash # /etc/init.d executes the S and K scripts upon change # of runlevel. # # Runlevel 0 is halt. # Runlevel 1 is single-user. # Runlevels 2-5 are multi-user. # Runlevel 6 is reboot. l0:0:wait:/etc/init.d/rc 0 l1:1:wait:/etc/init.d/rc 1 l2:2:wait:/etc/init.d/rc 2 l3:3:wait:/etc/init.d/rc 3 l4:4:wait:/etc/init.d/rc 4 l5:5:wait:/etc/init.d/rc 5 l6:6:wait:/etc/init.d/rc 6 # Normally not reached, but fallthrough in case of emergency. z6:6:respawn:/bin/bash # What to do when CTRL-ALT-DEL is pressed. ca:12345:ctrlaltdel:/sbin/shutdown -t1 -a -r now # Action on special keypress (ALT-UpArrow). kb::kbrequest:/bin/echo "Keyboard Request--edit /etc/inittab to let this work." # What to do when the power fails/returns. # /sbin/getty invocations for the runlevels. # # The "id" field MUST be the same as the last # characters of the device (after "tty"). # # Format: # ::: #0:2345:respawn:/bin/bash -login 1:2345:respawn:/bin/bash -login /dev/ttys/1 2>/dev/ttys/1 #2:2345:respawn:/bin/bash -login /dev/ttys/2 2>/dev/ttys/2 #c:2345:respawn:/bin/bash -login <>2>neco --i9LlY+UWpKt15+FH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=rc #! /bin/sh umnt () { sync; echo umounting... umount -a -t noproc,nodevfs mount / -n -o remount,ro echo done } PATH=/sbin:/bin:/usr/bin case "$1" in 6) umnt; reboot -d -f -i ;; 0) umnt; halt -d -f -i -p -h ;; esac --i9LlY+UWpKt15+FH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=rcS #! /bin/sh PATH=/bin:/sbin mount /proc swapon -a ifconfig lo 127.0.0.1 ifconfig eth0 192.168.1.253 netmask 255.255.255.255 up route add -host 192.168.1.254 eth0 route add default gw 192.168.1.254 eth0 mke2fs -q /dev/rd/0 mount -avt nonfs /sbin/portmap /sbin/rpc.statd /sbin/rpc.lockd mount -avt nfs --i9LlY+UWpKt15+FH-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/