Re: 2.6.37-rc1 krash

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On 2010-11-25 18:17, Tigran Mkrtchyan wrote:
> On 11/23/2010 10:56 AM, Benny Halevy wrote:
>> On 2010-11-19 13:27, Tigran Mkrtchyan wrote:
>>> Hi Benny,
>>>
>>>
>>> On 11/18/2010 05:59 PM, Benny Halevy wrote:
>>>> Hi Tigran, Can you please gdb your nfs.ko module to get the line number of the warning?
>>>> (gdb) list *(pnfs_destroy_layout+0xd6)
>>>> I'm not sure what arch you're using but these offsets don't make sense on
>>>> my x86_64 machine...
>>> here is the corresponding lines:
>>>
>>>           if (lo) {
>>>                   pnfs_clear_lseg_list(lo,&tmp_list,&range);
>>>                   WARN_ON(!list_empty(&nfsi->layout->segs));
>>>                   WARN_ON(!list_empty(&nfsi->layout->layouts));
>>>                   WARN_ON(nfsi->layout->refcount != 1);
>>>
>>>                   /* Matched by refcount set to 1 in alloc_init_layout_hdr */
>>>                   put_layout_hdr_locked(lo);
>>>           }
>> and what line in particular? :)
>>
>>>> By "crashed", you mean these warnings, or is there anything else?
>>>>
>>> after that machine was dead and I have to reset it. This messages I got
>>> from
>>> /var/log/messages and they was the last entries before new boot sequence.
>>>
>>> I will do the same exercise with -rc2 next week.
> Hi Benny,
> 
> I can't reproduce it with -rc3. Shall I rollback to -rc1?

Hmm, I guess it's just a matter of time until we hit it with the
latest bits...

Benny

> 
> Regards,
>     Tigran.
> 
>> Thanks!
>>
>>> Regards,
>>>      Tigran.
>>>
>>>> Benny
>>>>
>>>> On 2010-11-18 17:21, Tigran Mkrtchyan wrote:
>>>>> During dead client recovery procedure you client crashed in did.
>>>>>
>>>>> The procedure was: during IO disconnect network cable. We was testing
>>>>> server cleanup sequence.  Then we have connected  client back. After some
>>>>> time client reconnected...and crashed. The last thing I have seen was
>>>>> BAD_SESSION
>>>>> from the server on READ call:
>>>>>
>>>>>
>>>>>
>>>>> Nov 18 16:04:29 slinux kernel: [  555.385877] Got error -10052 from the
>>>>> server on DESTROY_SESSION. Session has been destroyed regardless...
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395300] ------------[ cut here
>>>>> ]------------
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395321] WARNING: at
>>>>> fs/nfs/pnfs.c:477 pnfs_destroy_layout+0xd6/0x100 [nfs]()
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395323] Hardware name: VirtualBox
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395324] Modules linked in:
>>>>> nfs_layout_nfsv41_files nfs lockd fscache nfs_acl auth_rpcgss sunrpc
>>>>> ipv6 af_packet binfmt_misc dm_mirror dm_multipath scsi_dh video output
>>>>> thermal sbs sbshc pci_slot fan container battery lp sg ac option
>>>>> usb_wwan usbserial thermal_sys button parport_pc tpm_tis tpm serio_raw
>>>>> tpm_bios parport e1000 i2c_piix4 pata_mpiix dm_region_hash dm_log dm_mod
>>>>> [last unloaded: mperf]
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395425] Pid: 2259, comm:
>>>>> 131.169.40.35-m Not tainted 2.6.37-rc1.pnfs.1 #1
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395427] Call Trace:
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395434]  [<ffffffffa024a256>] ?
>>>>> pnfs_destroy_layout+0xd6/0x100 [nfs]
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395440]  [<ffffffffa024a256>] ?
>>>>> pnfs_destroy_layout+0xd6/0x100 [nfs]
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395444]  [<ffffffff81041fbc>] ?
>>>>> warn_slowpath_common+0x8c/0xc0
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395450]  [<ffffffffa024a256>] ?
>>>>> pnfs_destroy_layout+0xd6/0x100 [nfs]
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395456]  [<ffffffffa024a302>] ?
>>>>> pnfs_destroy_all_layouts+0x82/0xc0 [nfs]
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395462]  [<ffffffffa0242b93>] ?
>>>>> nfs4_run_state_manager+0x4e3/0x540 [nfs]
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395469]  [<ffffffffa02426b0>] ?
>>>>> nfs4_run_state_manager+0x0/0x540 [nfs]
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395471]  [<ffffffff8105b466>] ?
>>>>> kthread+0x96/0xa0
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395474]  [<ffffffff81003a14>] ?
>>>>> kernel_thread_helper+0x4/0x10
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395476]  [<ffffffff8105b3d0>] ?
>>>>> kthread+0x0/0xa0
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395478]  [<ffffffff81003a10>] ?
>>>>> kernel_thread_helper+0x0/0x10
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395479] ---[ end trace
>>>>> 8f55223a1de06cc6 ]---
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395480] ------------[ cut here
>>>>> ]------------
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395486] WARNING: at
>>>>> fs/nfs/pnfs.c:478 pnfs_destroy_layout+0xfc/0x100 [nfs]()
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395487] Hardware name: VirtualBox
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395488] Modules linked in:
>>>>> nfs_layout_nfsv41_files nfs lockd fscache nfs_acl auth_rpcgss sunrpc
>>>>> ipv6 af_packet binfmt_misc dm_mirror dm_multipath scsi_dh video output
>>>>> thermal sbs sbshc pci_slot fan container battery lp sg ac option
>>>>> usb_wwan usbserial thermal_sys button parport_pc tpm_tis tpm serio_raw
>>>>> tpm_bios parport e1000 i2c_piix4 pata_mpiix dm_region_hash dm_log dm_mod
>>>>> [last unloaded: mperf]
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395503] Pid: 2259, comm:
>>>>> 131.169.40.35-m Tainted: G        W   2.6.37-rc1.pnfs.1 #1
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395504] Call Trace:
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395510]  [<ffffffffa024a27c>] ?
>>>>> pnfs_destroy_layout+0xfc/0x100 [nfs]
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395516]  [<ffffffffa024a27c>] ?
>>>>> pnfs_destroy_layout+0xfc/0x100 [nfs]
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395518]  [<ffffffff81041fbc>] ?
>>>>> warn_slowpath_common+0x8c/0xc0
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395523]  [<ffffffffa024a27c>] ?
>>>>> pnfs_destroy_layout+0xfc/0x100 [nfs]
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395529]  [<ffffffffa024a302>] ?
>>>>> pnfs_destroy_all_layouts+0x82/0xc0 [nfs]
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395536]  [<ffffffffa0242b93>] ?
>>>>> nfs4_run_state_manager+0x4e3/0x540 [nfs]
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395542]  [<ffffffffa02426b0>] ?
>>>>> nfs4_run_state_manager+0x0/0x540 [nfs]
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395544]  [<ffffffff8105b466>] ?
>>>>> kthread+0x96/0xa0
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395546]  [<ffffffff81003a14>] ?
>>>>> kernel_thread_helper+0x4/0x10
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395548]  [<ffffffff8105b3d0>] ?
>>>>> kthread+0x0/0xa0
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395550]  [<ffffffff81003a10>] ?
>>>>> kernel_thread_helper+0x0/0x10
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395551] ---[ end trace
>>>>> 8f55223a1de06cc7 ]---
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395552] ------------[ cut here
>>>>> ]------------
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395558] WARNING: at
>>>>> fs/nfs/pnfs.c:479 pnfs_destroy_layout+0xe9/0x100 [nfs]()
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395559] Hardware name: VirtualBox
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395560] Modules linked in:
>>>>> nfs_layout_nfsv41_files nfs lockd fscache nfs_acl auth_rpcgss sunrpc
>>>>> ipv6 af_packet binfmt_misc dm_mirror dm_multipath scsi_dh video output
>>>>> thermal sbs sbshc pci_slot fan container battery lp sg ac option
>>>>> usb_wwan usbserial thermal_sys button parport_pc tpm_tis tpm serio_raw
>>>>> tpm_bios parport e1000 i2c_piix4 pata_mpiix dm_region_hash dm_log dm_mod
>>>>> [last unloaded: mperf]
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395575] Pid: 2259, comm:
>>>>> 131.169.40.35-m Tainted: G        W   2.6.37-rc1.pnfs.1 #1
>>>>> Nov 18 16:04:29 slinux kernel: [  555.395576] Call Trace:
>>>>>
>>>>> this is
>>>>>
>>>>> pnfs-all-2.6.37-rc1-2010-11-03 from Banny's tree (git
>>>>>     6a1df873544d146fcdc493034b170879985909e8) +
>>>>> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blobdiff;f=mm/vmstat.c;h=42eac4d33216b81c307a87016e821051bc86146e;hp=cd2e42be7b68f73dc60f40631f2b9f87708d3b47;hb=ff8b16d7e15a8ba2a6086645614a483e048e3fbf;hpb=81a6cff678ecee7cdc0658285d3150660c07cfce
>>>>>
>>>>>
>>>>>
>>>>> Regards,
>>>>>       Tigran.
>>>>> --
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