(cc's added)
On Fri, 28 Nov 2008 07:33:55 +0100 Nico -telmich- Schottelius <[email protected]> wrote:
> Hello!
>
> After about four suspend & resume operations in the midst of editing
> a file, the system beeped twice and issued this error:
>
> [69186.618730] note: kcryptd[2848] exited with preempt_count 2
>
> [full call trace attached]
>
> /dev/sda3 was mapped via cryptsetup luksOpen to /dev/mapper/home
> and also mounted an home.
>
> After that error, all accesses to /home hung. Access to /
> (provided by sda1) were still working.
>
> System is again the Lenovo X200, including sierra loaded and used.
>
> ...
>
[lots of snippage]
> [69134.199241] device ppp0 left promiscuous mode
> [69186.618203] general protection fault: 0000 [#1] PREEMPT SMP
> [69186.618216] last sysfs file: /sys/class/power_supply/BAT0/energy_full
> [69186.618220] CPU 0
> [69186.618224] Modules linked in: ppp_deflate zlib_deflate zlib_inflate bsd_comp ppp_async crc_ccitt ppp_generic slhc sierra usbserial usb_storage libusual nfs lockd nfs_acl sunrpc iwlagn tun sg usblp sr_mod cdrom vfat fat i915 drm rfcomm l2cap uinput autofs4 ipv6 cpufreq_powersave sha256_generic ansi_cprng krng chainiv rng aes_x86_64 aes_generic cbc dm_crypt dm_mod md_mod loop btusb bluetooth arc4 ecb cryptomgr aead crypto_blkcipher crypto_hash snd_hda_intel snd_pcm snd_page_alloc snd_hwdep snd_seq snd_timer snd_seq_device i2c_i801 rtc_cmos rtc_core snd rtc_lib iwlcore i2c_core pcspkr soundcore mac80211 cfg80211 ehci_hcd video output uhci_hcd wmi usbcore e1000e intel_agp thinkpad_acpi rfkill hwmon backlight led_class nvram [last unloaded: iwlagn]
> [69186.618352] Pid: 2848, comm: kcryptd Not tainted 2.6.28-rc6-next-20081125-denkbrett #15
> [69186.618357] RIP: 0010:[<ffffffff8031f246>] [<ffffffff8031f246>] crypto_xor+0x7/0x48
> [69186.618372] RSP: 0018:ffff880079879cc8 EFLAGS: 00010212
> [69186.618377] RAX: 00000000fffffff0 RBX: b6e3880000000010 RCX: 0000000000000000
> [69186.618382] RDX: 0000000000000010 RSI: b6e3880000000000 RDI: ffff88007a3da4e0
> [69186.618387] RBP: 0000000000000010 R08: 0000000000000010 R09: 0000000000000000
> [69186.618392] R10: 0000000000000000 R11: ffff88007a3da4e0 R12: 0000000000000010
> [69186.618397] R13: ffff88000c8c9000 R14: ffff88007a3da4e0 R15: 00000000000001f0
> [69186.618403] FS: 0000000000000000(0000) GS:ffffffff805f51c0(0000) knlGS:0000000000000000
> [69186.618408] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
> [69186.618413] CR2: 00007f56a00ef000 CR3: 0000000053dc9000 CR4: 00000000000006e0
> [69186.618418] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [69186.618423] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> [69186.618429] Process kcryptd (pid: 2848, threadinfo ffff880079878000, task ffff88007c2f23a0)
> [69186.618433] Stack:
> [69186.618436] ffffffffa027226a ffffffff805e1e00 ffff880079879db0 ffff88007ad33800
> [69186.618444] ffff88007b400360 ffffffffa0285705 fffffff000011212 0000000000000000
> [69186.618453] b6e3880000000000 ffffe200002bebf8 ffff88000c8c9000 ffff88007a3da4a0
> [69186.618462] Call Trace:
> [69186.618468] [<ffffffffa027226a>] ? crypto_cbc_encrypt+0xfa/0x15a [cbc]
> [69186.618481] [<ffffffffa0285705>] ? aes_encrypt+0x0/0x7 [aes_x86_64]
> [69186.618494] [<ffffffffa020667d>] ? async_encrypt+0x35/0x3a [crypto_blkcipher]
> [69186.618509] [<ffffffffa0269a6f>] ? crypt_convert+0x1d2/0x253 [dm_crypt]
> [69186.618522] [<ffffffffa0269ed6>] ? kcryptd_crypt+0x3e6/0x407 [dm_crypt]
> [69186.618533] [<ffffffffa0269af0>] ? kcryptd_crypt+0x0/0x407 [dm_crypt]
> [69186.618543] [<ffffffff80241704>] ? run_workqueue+0x87/0x122
> [69186.618552] [<ffffffff80241877>] ? worker_thread+0xd8/0xe7
> [69186.618560] [<ffffffff80244e00>] ? autoremove_wake_function+0x0/0x2e
> [69186.618569] [<ffffffff8024179f>] ? worker_thread+0x0/0xe7
> [69186.618575] [<ffffffff8024179f>] ? worker_thread+0x0/0xe7
> [69186.618582] [<ffffffff80244ae7>] ? kthread+0x47/0x73
> [69186.618589] [<ffffffff8020c4e9>] ? child_rip+0xa/0x21
> [69186.618597] [<ffffffff80244aa0>] ? kthread+0x0/0x73
> [69186.618604] [<ffffffff8020c4df>] ? child_rip+0x0/0x21
> [69186.618611] Code: 08 48 89 51 08 48 89 0a 48 b9 00 01 10 00 00 00 ad de 48 ba 00 02 20 00 00 00 ad de 48 89 08 48 89 50 08 c3 41 89 d0 31 c9 eb 0e <8b> 04 0e 41 83 e8 04 31 04 0f 48 83 c1 04 41 83 f8 03 77 ec 41
> [69186.618678] RIP [<ffffffff8031f246>] crypto_xor+0x7/0x48
> [69186.618686] RSP <ffff880079879cc8>
> [69186.618723] ---[ end trace 728c95da3be59caf ]---
> [69186.618730] note: kcryptd[2848] exited with preempt_count 2
>
Either a bug in dm-crypt or in crypto core, I'd guess.
I assume that 2.6.28-rc6 is OK?
On Sat, Nov 29, 2008 at 07:29:39PM -0800, Andrew Morton wrote:
>
> > [69186.618377] RAX: 00000000fffffff0 RBX: b6e3880000000010 RCX: 0000000000000000
> > [69186.618382] RDX: 0000000000000010 RSI: b6e3880000000000 RDI: ffff88007a3da4e0
> > [69186.618611] Code: 08 48 89 51 08 48 89 0a 48 b9 00 01 10 00 00 00 ad de 48 ba 00 02 20 00 00 00 ad de 48 89 08 48 89 50 08 c3 41 89 d0 31 c9 eb 0e <8b> 04 0e 41 83 e8 04 31 04 0f 48 83 c1 04 41 83 f8 03 77 ec 41
8b 04 0e mov (%rsi,%rcx,1),%eax
So we were fed a bogus pointer by the caller.
> I assume that 2.6.28-rc6 is OK?
Nothing has changed in the crypto ciphers lately.
Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
Andrew Morton wrote:
> (cc's added)
>
>> After about four suspend & resume operations in the midst of editing
>> a file, the system beeped twice and issued this error:
Did this work before? If so, please can you provide version where
it works?
It is suspend to encrypted swap?
There should not be any recent change in dm-crypt related to this path,
so I expect it is some bug related to suspend/resume in combination with
running crypto - like corruption of some memory caused during suspend...
> [lots of snippage]
>> [69186.618357] RIP: 0010:[<ffffffff8031f246>] [<ffffffff8031f246>] crypto_xor+0x7/0x48
> [69186.618468] [<ffffffffa027226a>] ? crypto_cbc_encrypt+0xfa/0x15a [cbc]
> [69186.618481] [<ffffffffa0285705>] ? aes_encrypt+0x0/0x7 [aes_x86_64]
> [69186.618494] [<ffffffffa020667d>] ? async_encrypt+0x35/0x3a [crypto_blkcipher]
> [69186.618509] [<ffffffffa0269a6f>] ? crypt_convert+0x1d2/0x253 [dm_crypt]
> [69186.618522] [<ffffffffa0269ed6>] ? kcryptd_crypt+0x3e6/0x407 [dm_crypt]
> [69186.618533] [<ffffffffa0269af0>] ? kcryptd_crypt+0x0/0x407 [dm_crypt]
I assume that crypto run here synchronously (not through asynchronous completion callback).
Herbert - is my guess ok? (The asynchronous handling in dm-crypt was the only part changed recently.)
(And I think that except crypto hw nobody uses asynchronous mode yet by default.)
Milan
--
[email protected]
On Mon, Dec 01, 2008 at 01:16:06AM +0100, Milan Broz wrote:
>
> > [69186.618468] [<ffffffffa027226a>] ? crypto_cbc_encrypt+0xfa/0x15a [cbc]
> > [69186.618481] [<ffffffffa0285705>] ? aes_encrypt+0x0/0x7 [aes_x86_64]
> > [69186.618494] [<ffffffffa020667d>] ? async_encrypt+0x35/0x3a [crypto_blkcipher]
> > [69186.618509] [<ffffffffa0269a6f>] ? crypt_convert+0x1d2/0x253 [dm_crypt]
> > [69186.618522] [<ffffffffa0269ed6>] ? kcryptd_crypt+0x3e6/0x407 [dm_crypt]
> > [69186.618533] [<ffffffffa0269af0>] ? kcryptd_crypt+0x0/0x407 [dm_crypt]
>
> I assume that crypto run here synchronously (not through asynchronous completion callback).
>
> Herbert - is my guess ok? (The asynchronous handling in dm-crypt was the only part changed recently.)
> (And I think that except crypto hw nobody uses asynchronous mode yet by default.)
Yes that's definitely synchronous.
Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
Andrew Morton [Sat, Nov 29, 2008 at 07:29:39PM -0800]:
> I assume that 2.6.28-rc6 is OK?
Yep, sorry for the late answer.
--
Think about Free and Open Source Software (FOSS).
http://nico.schottelius.org/documentations/foss/the-term-foss/
PGP: BFE4 C736 ABE5 406F 8F42 F7CF B8BE F92A 9885 188C
Milan Broz [Mon, Dec 01, 2008 at 01:16:06AM +0100]:
> Andrew Morton wrote:
> > (cc's added)
> >
> >> After about four suspend & resume operations in the midst of editing
> >> a file, the system beeped twice and issued this error:
>
> Did this work before?
yep
> If so, please can you provide version where
> it works?
2.6.28-rc6
> It is suspend to encrypted swap?
No, suspend to ram.
Sincerly,
Nico
--
Think about Free and Open Source Software (FOSS).
http://nico.schottelius.org/documentations/foss/the-term-foss/
PGP: BFE4 C736 ABE5 406F 8F42 F7CF B8BE F92A 9885 188C
Same issue with next-20081201, dmesg attached.
I am not sure whether this happened before I tried to suspend
it the second time (echo mem > /sys/power/state) or directly
when I issued that command (maybe the latter one).
One time suspend + resume worked, though.
--
Think about Free and Open Source Software (FOSS).
http://nico.schottelius.org/documentations/foss/the-term-foss/
PGP: BFE4 C736 ABE5 406F 8F42 F7CF B8BE F92A 9885 188C