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Bug#642235: marked as done (linux-2.6: LVM deadlocks and oops)

Your message dated Mon, 15 Jul 2013 19:05:16 +0200
with message-id <20130715170516.GB4618@pisco.westfalen.local>
and subject line Closing
has caused the Debian Bug report #642235,
regarding linux-2.6: LVM deadlocks and oops
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
642235: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=642235
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: linux-2.6
Version: 3.1.0-rc6
Severity: normal
Tags: upstream

Hello,

  While playing with sbuild to build packages on armhf buildd running an
  upstream patched kernel for i.MX53 LOCO boards (next armhf build daemons).

  I have hit a deadlock and oops on LVM, so I think it is worth it to
  document the problem here and maybe it can get fixed.

[74093.782238] kjournald starting.  Commit interval 5 seconds
[74093.821968] EXT3-fs (dm-4): using internal journal
[74093.826917] EXT3-fs (dm-4): mounted filesystem with ordered data mode
[74397.131757] kjournald starting.  Commit interval 5 seconds
[74397.169996] EXT3-fs (dm-4): using internal journal
[74397.174838] EXT3-fs (dm-4): mounted filesystem with ordered data mode
[76601.907689] kjournald starting.  Commit interval 5 seconds
[76601.945944] EXT3-fs (dm-4): using internal journal
[76601.950779] EXT3-fs (dm-4): mounted filesystem with ordered data mode
[76656.111857] kjournald starting.  Commit interval 5 seconds
[76656.150092] EXT3-fs (dm-4): using internal journal
[76656.154937] EXT3-fs (dm-4): mounted filesystem with ordered data mode
[76793.872136] kjournald starting.  Commit interval 5 seconds
[76793.910358] EXT3-fs (dm-4): using internal journal
[76793.915200] EXT3-fs (dm-4): mounted filesystem with ordered data mode
[84651.608193] kjournald starting.  Commit interval 5 seconds
[84651.646426] EXT3-fs (dm-4): using internal journal
[84651.651269] EXT3-fs (dm-4): mounted filesystem with ordered data mode
[84738.700610] 
[84738.700625] =======================================================
[84738.708389] [ INFO: possible circular locking dependency detected ]
[84738.714663] 3.1.0-rc6 #4
[84738.717197] -------------------------------------------------------
[84738.723467] lvcreate/9492 is trying to acquire lock:
[84738.728435]  (&md->suspend_lock){+.+...}, at: [<c02c73c4>] dm_suspend+0x28/0x29c
[84738.735894] 
[84738.735897] but task is already holding lock:
[84738.741740]  (&journal->j_barrier){+.+...}, at: [<c01481c4>] journal_lock_updates+0xf0/0xfc
[84738.750141] 
[84738.750145] which lock already depends on the new lock.
[84738.750150] 
[84738.758344] 
[84738.758346] the existing dependency chain (in reverse order) is:
[84738.765839] 
[84738.765842] -> #1 (&journal->j_barrier){+.+...}:
[84738.771981]        [<c0052114>] check_prev_add+0x338/0x680
[84738.777492]        [<c0052e4c>] validate_chain+0x4f4/0x674
[84738.782993]        [<c0053714>] __lock_acquire+0x748/0x828
[84738.788496]        [<c0053a28>] lock_release_non_nested+0x234/0x2bc
[84738.794780]        [<c0053b98>] __lock_release+0xe8/0x1cc
[84738.800195]        [<c0053cdc>] lock_release+0x60/0x70
[84738.805348]        [<c04636d4>] __mutex_unlock_slowpath+0xd4/0x13c
[84738.811551]        [<c046374c>] mutex_unlock+0x10/0x14
[84738.816705]        [<c00c9434>] freeze_bdev+0x9c/0xa4
[84738.821783]        [<c02c7438>] dm_suspend+0x9c/0x29c
[84738.826850]        [<c02cc06c>] dev_suspend+0x5c/0x90
[84738.831921]        [<c02ccdd4>] ctl_ioctl+0x228/0x2c8
[84738.836990]        [<c02cce8c>] dm_ctl_ioctl+0x18/0x1c
[84738.842145]        [<c00a9fa4>] do_vfs_ioctl+0x33c/0x38c
[84738.847483]        [<c00aa034>] sys_ioctl+0x40/0x64
[84738.852378]        [<c000dfc0>] ret_fast_syscall+0x0/0x3c
[84738.857801] 
[84738.857804] -> #0 (&md->suspend_lock){+.+...}:
[84738.863769]        [<c0051c78>] print_circular_bug+0x5c/0xfc
[84738.869445]        [<c0051f10>] check_prev_add+0x134/0x680
[84738.874947]        [<c0052e4c>] validate_chain+0x4f4/0x674
[84738.880450]        [<c0053714>] __lock_acquire+0x748/0x828
[84738.885952]        [<c0053d78>] lock_acquire+0x8c/0xa0
[84738.891107]        [<c04643a8>] mutex_lock_nested+0x74/0x30c
[84738.896784]        [<c02c73c4>] dm_suspend+0x28/0x29c
[84738.901851]        [<c02cc06c>] dev_suspend+0x5c/0x90
[84738.906920]        [<c02ccdd4>] ctl_ioctl+0x228/0x2c8
[84738.911988]        [<c02cce8c>] dm_ctl_ioctl+0x18/0x1c
[84738.917143]        [<c00a9fa4>] do_vfs_ioctl+0x33c/0x38c
[84738.922472]        [<c00aa034>] sys_ioctl+0x40/0x64
[84738.927367]        [<c000dfc0>] ret_fast_syscall+0x0/0x3c
[84738.932783] 
[84738.932786] other info that might help us debug this:
[84738.932791] 
[84738.940814]  Possible unsafe locking scenario:
[84738.940819] 
[84738.946747]        CPU0                    CPU1
[84738.951280]        ----                    ----
[84738.955810]   lock(&journal->j_barrier);
[84738.959757]                                lock(&md->suspend_lock);
[84738.966049]                                lock(&journal->j_barrier);
[84738.972515]   lock(&md->suspend_lock);
[84738.976287] 
[84738.976290]  *** DEADLOCK ***
[84738.976293] 
[84738.982232] 1 lock held by lvcreate/9492:
[84738.986243]  #0:  (&journal->j_barrier){+.+...}, at: [<c01481c4>] journal_lock_updates+0xf0/0xfc
[84738.995085] 
[84738.995088] stack backtrace:
[84738.999455] Backtrace: 
[84739.001928] [<c00114e0>] (dump_backtrace+0x0/0x110) from [<c04624e0>] (dump_stack+0x18/0x1c)
[84739.010372]  r7:dee6f908 r6:dee6f920 r5:00000000 r4:ffffffff
[84739.016090] [<c04624c8>] (dump_stack+0x0/0x1c) from [<c0051d00>] (print_circular_bug+0xe4/0xfc)
[84739.024799] [<c0051c1c>] (print_circular_bug+0x0/0xfc) from [<c0051f10>] (check_prev_add+0x134/0x680)
[84739.034030] [<c0051ddc>] (check_prev_add+0x0/0x680) from [<c0052e4c>] (validate_chain+0x4f4/0x674)
[84739.043001] [<c0052958>] (validate_chain+0x0/0x674) from [<c0053714>] (__lock_acquire+0x748/0x828)
[84739.051972] [<c0052fcc>] (__lock_acquire+0x0/0x828) from [<c0053d78>] (lock_acquire+0x8c/0xa0)
[84739.060594] [<c0053cec>] (lock_acquire+0x0/0xa0) from [<c04643a8>] (mutex_lock_nested+0x74/0x30c)
[84739.069478] [<c0464334>] (mutex_lock_nested+0x0/0x30c) from [<c02c73c4>] (dm_suspend+0x28/0x29c)
[84739.078274] [<c02c739c>] (dm_suspend+0x0/0x29c) from [<c02cc06c>] (dev_suspend+0x5c/0x90)
[84739.086463] [<c02cc010>] (dev_suspend+0x0/0x90) from [<c02ccdd4>] (ctl_ioctl+0x228/0x2c8)
[84739.094644]  r7:00004000 r6:00000006 r5:020b2560 r4:00000000
[84739.100363] [<c02ccbac>] (ctl_ioctl+0x0/0x2c8) from [<c02cce8c>] (dm_ctl_ioctl+0x18/0x1c)
[84739.108553] [<c02cce74>] (dm_ctl_ioctl+0x0/0x1c) from [<c00a9fa4>] (do_vfs_ioctl+0x33c/0x38c)
[84739.117090] [<c00a9c68>] (do_vfs_ioctl+0x0/0x38c) from [<c00aa034>] (sys_ioctl+0x40/0x64)
[84739.125272]  r7:00000003 r6:c138fd06 r5:020b2560 r4:df9d5600
[84739.130991] [<c00a9ff4>] (sys_ioctl+0x0/0x64) from [<c000dfc0>] (ret_fast_syscall+0x0/0x3c)
[84739.139346]  r7:00000036 r6:020b2560 r5:401c129c r4:0209e190
[84739.652392] kjournald starting.  Commit interval 5 seconds
[84739.687694] EXT3-fs (dm-7): using internal journal
[84739.692513] EXT3-fs (dm-7): mounted filesystem with ordered data mode
[84808.774816] kjournald starting.  Commit interval 5 seconds
[84808.810005] EXT3-fs (dm-9): using internal journal
[84808.814824] EXT3-fs (dm-9): mounted filesystem with ordered data mode
[84842.914913] kjournald starting.  Commit interval 5 seconds
[84842.951118] EXT3-fs (dm-11): using internal journal
[84842.956051] EXT3-fs (dm-11): mounted filesystem with ordered data mode
[85634.390437] kjournald starting.  Commit interval 5 seconds
[85634.428307] EXT3-fs (dm-13): using internal journal
[85634.433214] EXT3-fs (dm-13): mounted filesystem with ordered data mode
[87528.329271] kjournald starting.  Commit interval 5 seconds
[87528.367141] EXT3-fs (dm-13): using internal journal
[87528.372050] EXT3-fs (dm-13): mounted filesystem with ordered data mode
[88075.274597] kjournald starting.  Commit interval 5 seconds
[88075.312460] EXT3-fs (dm-13): using internal journal
[88075.317400] EXT3-fs (dm-13): mounted filesystem with ordered data mode
[88524.830124] kjournald starting.  Commit interval 5 seconds
[88524.867964] EXT3-fs (dm-13): using internal journal
[88524.872872] EXT3-fs (dm-13): mounted filesystem with ordered data mode
[88775.331566] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[88775.339749] pgd = d5170000
[88775.342460] [00000000] *pgd=80549831, *pte=00000000, *ppte=00000000
[88775.348788] Internal error: Oops: 817 [#1]
[88775.352888] Modules linked in: mma8450 input_polldev
[88775.357896] CPU: 0    Not tainted  (3.1.0-rc6 #4)
[88775.362621] PC is at mempool_destroy+0x20/0x30
[88775.367075] LR is at dm_kcopyd_client_destroy+0x120/0x134
[88775.372479] pc : [<c006d1a8>]    lr : [<c02cd850>]    psr: 80000013
[88775.372486] sp : cbc03e18  ip : cbc03e28  fp : cbc03e24
[88775.383973] r10: c02cc4e8  r9 : cbc02000  r8 : df9da3f8
[88775.389202] r7 : 00000000  r6 : c0c59468  r5 : 00000000  r4 : df9da3c0
[88775.395734] r3 : 00000000  r2 : 00000008  r1 : cbc02000  r0 : dfac2280
[88775.402268] Flags: Nzcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
[88775.409409] Control: 10c5387d  Table: 85170019  DAC: 00000015
[88775.415159] Process lvremove (pid: 26882, stack limit = 0xcbc022e8)
[88775.421431] Stack: (0xcbc03e18 to 0xcbc04000)
[88775.425792] 3e00:                                                       cbc03e64 cbc03e28
[88775.433979] 3e20: c02cd850 c006d194 cbc02000 c02cc4e8 cbc03e54 cbc03e40 c006d184 c0096ea4
[88775.442166] 3e40: dfaa4e00 e2ea2040 c0c59468 00000000 0000020c c02cc4e8 cbc03e8c cbc03e68
[88775.450353] 3e60: c02d45a8 c02cd73c 00000000 dfaa4e00 db6b5500 00000038 00000001 e2ea2040
[88775.458540] 3e80: cbc03eac cbc03e90 c02c9560 c02d44b0 deda4800 db6b5500 deda4884 def66dc0
[88775.466727] 3ea0: cbc03ecc cbc03eb0 c02c7764 c02c94f4 deda4800 e360d000 00000000 def66dc0
[88775.474913] 3ec0: cbc03edc cbc03ed0 c02c77ac c02c7644 cbc03efc cbc03ee0 c02cc5bc c02c77a4
[88775.483100] 3ee0: 00000000 01a92348 00000004 00004000 cbc03f44 cbc03f00 c02ccdd4 c02cc4f4
[88775.491287] 3f00: c00b6374 c00b6278 cbc03f54 cbc03f18 00000004 00000015 00000000 e360d000
[88775.499474] 3f20: dec6de40 01a92348 c138fd04 00000005 c000e184 00000000 cbc03f54 cbc03f48
[88775.507661] 3f40: c02cce8c c02ccbb8 cbc03f7c cbc03f58 c00a9fa4 c02cce80 cbc03f84 cbc03f68
[88775.515848] 3f60: dec6de40 01a92348 c138fd04 00000005 cbc03fa4 cbc03f80 c00aa034 c00a9c74
[88775.524035] 3f80: c00508c8 00000000 01a8b1c8 4014529c 01a92348 00000036 00000000 cbc03fa8
[88775.532221] 3fa0: c000dfc0 c00aa000 01a8b1c8 4014529c 00000005 c138fd04 01a92348 000012ec
[88775.540408] 3fc0: 01a8b1c8 4014529c 01a92348 00000036 01a92378 0000131c 0005cc80 40144834
[88775.548594] 3fe0: 40143364 bee1d048 40140014 4031a70c 20000010 00000005 8fffe821 8fffec21
[88775.556775] Backtrace: 
[88775.559246] [<c006d188>] (mempool_destroy+0x0/0x30) from [<c02cd850>] (dm_kcopyd_client_destroy+0x120/0x134)
[88775.569092] [<c02cd730>] (dm_kcopyd_client_destroy+0x0/0x134) from [<c02d45a8>] (snapshot_dtr+0x104/0x164)
[88775.578764] [<c02d44a4>] (snapshot_dtr+0x0/0x164) from [<c02c9560>] (dm_table_destroy+0x78/0xec)
[88775.587555]  r7:e2ea2040 r6:00000001 r5:00000038 r4:db6b5500
[88775.593274] [<c02c94e8>] (dm_table_destroy+0x0/0xec) from [<c02c7764>] (__dm_destroy+0x12c/0x148)
[88775.602150]  r7:def66dc0 r6:deda4884 r5:db6b5500 r4:deda4800
[88775.607868] [<c02c7638>] (__dm_destroy+0x0/0x148) from [<c02c77ac>] (dm_destroy+0x14/0x18)
[88775.616137]  r7:def66dc0 r6:00000000 r5:e360d000 r4:deda4800
[88775.621858] [<c02c7798>] (dm_destroy+0x0/0x18) from [<c02cc5bc>] (dev_remove+0xd4/0xec)
[88775.629874] [<c02cc4e8>] (dev_remove+0x0/0xec) from [<c02ccdd4>] (ctl_ioctl+0x228/0x2c8)
[88775.637968]  r7:00004000 r6:00000004 r5:01a92348 r4:00000000
[88775.643686] [<c02ccbac>] (ctl_ioctl+0x0/0x2c8) from [<c02cce8c>] (dm_ctl_ioctl+0x18/0x1c)
[88775.651886] [<c02cce74>] (dm_ctl_ioctl+0x0/0x1c) from [<c00a9fa4>] (do_vfs_ioctl+0x33c/0x38c)
[88775.660423] [<c00a9c68>] (do_vfs_ioctl+0x0/0x38c) from [<c00aa034>] (sys_ioctl+0x40/0x64)
[88775.668605]  r7:00000005 r6:c138fd04 r5:01a92348 r4:dec6de40
[88775.674330] [<c00a9ff4>] (sys_ioctl+0x0/0x64) from [<c000dfc0>] (ret_fast_syscall+0x0/0x3c)
[88775.682685]  r7:00000036 r6:01a92348 r5:4014529c r4:01a8b1c8
[88775.688403] Code: e5903024 e1530002 0a000002 e3a03000 (e5833000) 
[88775.694552] ---[ end trace 6c1efa42e6c1017d ]---

Best regards

--- End Message ---
--- Begin Message --- 
Hi,
your bug has been filed against the "linux-2.6" source package and was filed for
a kernel older than the recently released Debian 7.x / Wheezy with a severity
less than important.

We don't have the ressources to reproduce the complete backlog of all older kernel
bugs, so we're closing this bug for now. If you can reproduce the bug with Debian Wheezy
or a more recent kernel from testing or unstable, please reopen the bug by sending
a mail to control@bugs.debian.org with the following three commands included in the
mail:

reopen BUGNUMBER
reassign BUGNUMBER src:linux
thanks

Cheers,
        Moritz

--- End Message ---
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