2017-10-26 08:21:30

by Mkrtchyan, Tigran

[permalink] [raw]
Subject: Kernel bug triggered with xfstest generic/113



Against dCache nfs server:

[ 3987.717284] ------------[ cut here ]------------
[ 3987.717286] kernel BUG at fs/inode.c:567!
[ 3987.717292] invalid opcode: 0000 [#1] SMP
[ 3987.717293] Modules linked in: loop nfs_layout_nfsv41_files rpcsec_gss_krb5 nfsv4 nfs lockd grace fscache binfmt_misc af_packet nf_conntrack_netbios_ns nf_conntrack_broadcast xt_tcpudp xt
_CT ip6t_REJECT nf_reject_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT nf_reject_ipv4 nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack libcrc32c nfnetlink ip6table_mangle ip6ta
ble_raw ip6table_security iptable_mangle iptable_raw iptable_security ip6table_filter ip6_tables iptable_filter btrfs xor zstd_decompress zstd_compress xxhash lzo_compress zlib_deflate raid6
_pq snd_hda_codec_idt snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq iTCO_wdt iTCO_vendor_support snd_seq_device snd_timer lpc_ich mfd_core tpm_tis snd_pcm
tpm_tis_core i2c_i801 snd tpm auth_rpcgss oid_registry
[ 3987.717340] sunrpc ip_tables x_tables serio_raw e1000e ptp pps_core autofs4
[ 3987.717349] CPU: 1 PID: 31883 Comm: rm Not tainted 4.14.0-rc6-01076-gbb176f67090c #120 [ 3987.717350] Hardware name: Comptronic pczW1007/DX38BT, BIOS BTX3810J.86A.1893.2008.1009.1712 10/09/2008
[ 3987.717353] task: ffff880107f7c480 task.stack: ffff88012a830000
[ 3987.717358] RIP: 0010:evict+0x161/0x180
[ 3987.717360] RSP: 0018:ffff88012a833e80 EFLAGS: 00010202
[ 3987.717362] RAX: ffffffff81806110 RBX: ffff880100037800 RCX: ffff8801000378a0
[ 3987.717364] RDX: ffffffff81806110 RSI: ffff8801000378a0 RDI: ffffffff81806108
[ 3987.717366] RBP: ffff88012a833e98 R08: 0000000000000000 R09: ffff88012a03d6e8
[ 3987.717368] R10: ffff88012a03d6f8 R11: ffff88012a03d6f8 R12: ffff880100037910
[ 3987.717370] R13: ffffffffa0404540 R14: 00000000ffffff9c R15: 0000000000000000
[ 3987.717372] FS: 00007faddfd6e700(0000) GS:ffff88012fc80000(0000) knlGS:0000000000000000
[ 3987.717375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3987.717377] CR2: 00005653ab778470 CR3: 000000012840c000 CR4: 00000000000406e0
[ 3987.717378] Call Trace:
[ 3987.717382] iput+0xf9/0x1c0
[ 3987.717385] do_unlinkat+0x18d/0x2f0
[ 3987.717388] SyS_unlinkat+0x16/0x30
[ 3987.717392] entry_SYSCALL_64_fastpath+0x13/0x94
[ 3987.717394] RIP: 0033:0x7faddf8a0c17
[ 3987.717396] RSP: 002b:00007ffc44a11468 EFLAGS: 00000246 ORIG_RAX: 0000000000000107
[ 3987.717399] RAX: ffffffffffffffda RBX: 000055ccd0723428 RCX: 00007faddf8a0c17
[ 3987.717401] RDX: 0000000000000000 RSI: 000055ccd07220f0 RDI: 00000000ffffff9c
[ 3987.717403] RBP: 000055ccd0723320 R08: 0000000000000003 R09: 0000000000000000
[ 3987.717404] R10: 0000000000000100 R11: 0000000000000246 R12: 000055ccd0722060
[ 3987.717406] R13: 00007ffc44a115a0 R14: 00007faddfb6a1e4 R15: 0000000000000000
[ 3987.717408] Code: 89 df e8 23 7d fe ff eb 8f 48 83 bb 20 02 00 00 00 74 85 48 89 df e8 7f ad 01 00 0f b7 03 66 25 00 f0 e9 6b ff ff ff 0f 0b 0f 0b <0f> 0b 48 8d bb 68 01 00 00 e8 a1 9e fa
ff 48 89 df e8 a9 f1 ff
[ 3987.717443] RIP: evict+0x161/0x180 RSP: ffff88012a833e80
[ 3987.717445] ---[ end trace ca9a0f6be0e72301 ]---

Looks like it happens in post-test clean-up step (rm), though some processes are still there:

root 18489 18329 0 Oct25 pts/1 00:00:00 /data/git/xfstests-dev/ltp/aio-stress -t 20 -s 10 -O -I 1000 /mnt/test/aiostress.18329.3 /mnt/test/aiostress.18329.3.20 /mnt/test/aiostress.18329.3.19 /mnt/test/aiostress.18329.3.18 /mnt/test/aiostress.18329.3.17 /mnt/test/aiostress.18329.3.16 /mnt/test/aiostress.18329.3.15 /mnt/test/aiostress.18329.3.14 /mnt/test/aiostress.18329.3.13 /mnt/test/aiostress.18329.3.12 /mnt/test/aiostress.18329.3.11 /mnt/test/aiostress.18329.3.10 /mnt/test/aiostress.18329.3.9 /mnt/test/aiostress.18329.3.8 /mnt/test/aiostress.18329.3.7 /mnt/test/aiostress.18329.3.6 /mnt/test/aiostress.18329.3.5 /mnt/test/aiostress.18329.3.4 /mnt/test/aiostress.18329.3.3 /mnt/test/aiostress.18329.3.2


I can always re-produce it.

Tigran.


2017-10-31 17:39:47

by Scott Mayhew

[permalink] [raw]
Subject: Re: Kernel bug triggered with xfstest generic/113

On Thu, 26 Oct 2017, Mkrtchyan, Tigran wrote:

>
>
> Against dCache nfs server:
>
> [ 3987.717284] ------------[ cut here ]------------
> [ 3987.717286] kernel BUG at fs/inode.c:567!
> [ 3987.717292] invalid opcode: 0000 [#1] SMP
> [ 3987.717293] Modules linked in: loop nfs_layout_nfsv41_files rpcsec_gss_krb5 nfsv4 nfs lockd grace fscache binfmt_misc af_packet nf_conntrack_netbios_ns nf_conntrack_broadcast xt_tcpudp xt
> _CT ip6t_REJECT nf_reject_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT nf_reject_ipv4 nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack libcrc32c nfnetlink ip6table_mangle ip6ta
> ble_raw ip6table_security iptable_mangle iptable_raw iptable_security ip6table_filter ip6_tables iptable_filter btrfs xor zstd_decompress zstd_compress xxhash lzo_compress zlib_deflate raid6
> _pq snd_hda_codec_idt snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq iTCO_wdt iTCO_vendor_support snd_seq_device snd_timer lpc_ich mfd_core tpm_tis snd_pcm
> tpm_tis_core i2c_i801 snd tpm auth_rpcgss oid_registry
> [ 3987.717340] sunrpc ip_tables x_tables serio_raw e1000e ptp pps_core autofs4
> [ 3987.717349] CPU: 1 PID: 31883 Comm: rm Not tainted 4.14.0-rc6-01076-gbb176f67090c #120 [ 3987.717350] Hardware name: Comptronic pczW1007/DX38BT, BIOS BTX3810J.86A.1893.2008.1009.1712 10/09/2008
> [ 3987.717353] task: ffff880107f7c480 task.stack: ffff88012a830000
> [ 3987.717358] RIP: 0010:evict+0x161/0x180
> [ 3987.717360] RSP: 0018:ffff88012a833e80 EFLAGS: 00010202
> [ 3987.717362] RAX: ffffffff81806110 RBX: ffff880100037800 RCX: ffff8801000378a0
> [ 3987.717364] RDX: ffffffff81806110 RSI: ffff8801000378a0 RDI: ffffffff81806108
> [ 3987.717366] RBP: ffff88012a833e98 R08: 0000000000000000 R09: ffff88012a03d6e8
> [ 3987.717368] R10: ffff88012a03d6f8 R11: ffff88012a03d6f8 R12: ffff880100037910
> [ 3987.717370] R13: ffffffffa0404540 R14: 00000000ffffff9c R15: 0000000000000000
> [ 3987.717372] FS: 00007faddfd6e700(0000) GS:ffff88012fc80000(0000) knlGS:0000000000000000
> [ 3987.717375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 3987.717377] CR2: 00005653ab778470 CR3: 000000012840c000 CR4: 00000000000406e0
> [ 3987.717378] Call Trace:
> [ 3987.717382] iput+0xf9/0x1c0
> [ 3987.717385] do_unlinkat+0x18d/0x2f0
> [ 3987.717388] SyS_unlinkat+0x16/0x30
> [ 3987.717392] entry_SYSCALL_64_fastpath+0x13/0x94
> [ 3987.717394] RIP: 0033:0x7faddf8a0c17
> [ 3987.717396] RSP: 002b:00007ffc44a11468 EFLAGS: 00000246 ORIG_RAX: 0000000000000107
> [ 3987.717399] RAX: ffffffffffffffda RBX: 000055ccd0723428 RCX: 00007faddf8a0c17
> [ 3987.717401] RDX: 0000000000000000 RSI: 000055ccd07220f0 RDI: 00000000ffffff9c
> [ 3987.717403] RBP: 000055ccd0723320 R08: 0000000000000003 R09: 0000000000000000
> [ 3987.717404] R10: 0000000000000100 R11: 0000000000000246 R12: 000055ccd0722060
> [ 3987.717406] R13: 00007ffc44a115a0 R14: 00007faddfb6a1e4 R15: 0000000000000000
> [ 3987.717408] Code: 89 df e8 23 7d fe ff eb 8f 48 83 bb 20 02 00 00 00 74 85 48 89 df e8 7f ad 01 00 0f b7 03 66 25 00 f0 e9 6b ff ff ff 0f 0b 0f 0b <0f> 0b 48 8d bb 68 01 00 00 e8 a1 9e fa
> ff 48 89 df e8 a9 f1 ff
> [ 3987.717443] RIP: evict+0x161/0x180 RSP: ffff88012a833e80
> [ 3987.717445] ---[ end trace ca9a0f6be0e72301 ]---

I've been seeing a similar panic. Does the attached patch help?

-Scott

>
> Looks like it happens in post-test clean-up step (rm), though some processes are still there:
>
> root 18489 18329 0 Oct25 pts/1 00:00:00 /data/git/xfstests-dev/ltp/aio-stress -t 20 -s 10 -O -I 1000 /mnt/test/aiostress.18329.3 /mnt/test/aiostress.18329.3.20 /mnt/test/aiostress.18329.3.19 /mnt/test/aiostress.18329.3.18 /mnt/test/aiostress.18329.3.17 /mnt/test/aiostress.18329.3.16 /mnt/test/aiostress.18329.3.15 /mnt/test/aiostress.18329.3.14 /mnt/test/aiostress.18329.3.13 /mnt/test/aiostress.18329.3.12 /mnt/test/aiostress.18329.3.11 /mnt/test/aiostress.18329.3.10 /mnt/test/aiostress.18329.3.9 /mnt/test/aiostress.18329.3.8 /mnt/test/aiostress.18329.3.7 /mnt/test/aiostress.18329.3.6 /mnt/test/aiostress.18329.3.5 /mnt/test/aiostress.18329.3.4 /mnt/test/aiostress.18329.3.3 /mnt/test/aiostress.18329.3.2
>
>
> I can always re-produce it.
>
> Tigran.
> --
> To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html

Attachments:
(No filename) (5.73 kB)
 0001-nfs-make-pnfs_destroy_layout-wait-on-commit-when-ino.patch (0.00 B)
 Download all attachments

2017-11-01 14:29:35

by Mkrtchyan, Tigran

[permalink] [raw]
Subject: Re: Kernel bug triggered with xfstest generic/113

Hi Scott,

looks like I can't reproduce the BUG, but now it hangs. I will investigate and let you know.

Tigran.

----- Original Message -----
> From: "Scott Mayhew" <[email protected]>
> To: "Tigran Mkrtchyan" <[email protected]>
> Cc: "linux-nfs" <[email protected]>
> Sent: Tuesday, October 31, 2017 6:39:45 PM
> Subject: Re: Kernel bug triggered with xfstest generic/113

> On Thu, 26 Oct 2017, Mkrtchyan, Tigran wrote:
>
>>
>>
>> Against dCache nfs server:
>>
>> [ 3987.717284] ------------[ cut here ]------------
>> [ 3987.717286] kernel BUG at fs/inode.c:567!
>> [ 3987.717292] invalid opcode: 0000 [#1] SMP
>> [ 3987.717293] Modules linked in: loop nfs_layout_nfsv41_files rpcsec_gss_krb5
>> nfsv4 nfs lockd grace fscache binfmt_misc af_packet nf_conntrack_netbios_ns
>> nf_conntrack_broadcast xt_tcpudp xt
>> _CT ip6t_REJECT nf_reject_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT
>> nf_reject_ipv4 nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack
>> libcrc32c nfnetlink ip6table_mangle ip6ta
>> ble_raw ip6table_security iptable_mangle iptable_raw iptable_security
>> ip6table_filter ip6_tables iptable_filter btrfs xor zstd_decompress
>> zstd_compress xxhash lzo_compress zlib_deflate raid6
>> _pq snd_hda_codec_idt snd_hda_codec_generic snd_hda_intel snd_hda_codec
>> snd_hda_core snd_hwdep snd_seq iTCO_wdt iTCO_vendor_support snd_seq_device
>> snd_timer lpc_ich mfd_core tpm_tis snd_pcm
>> tpm_tis_core i2c_i801 snd tpm auth_rpcgss oid_registry
>> [ 3987.717340] sunrpc ip_tables x_tables serio_raw e1000e ptp pps_core autofs4
>> [ 3987.717349] CPU: 1 PID: 31883 Comm: rm Not tainted
>> 4.14.0-rc6-01076-gbb176f67090c #120
>> [
>> 3987.717350] Hardware name: Comptronic pczW1007/DX38BT, BIOS
>> BTX3810J.86A.1893.2008.1009.1712 10/09/2008
>> [ 3987.717353] task: ffff880107f7c480 task.stack: ffff88012a830000
>> [ 3987.717358] RIP: 0010:evict+0x161/0x180
>> [ 3987.717360] RSP: 0018:ffff88012a833e80 EFLAGS: 00010202
>> [ 3987.717362] RAX: ffffffff81806110 RBX: ffff880100037800 RCX: ffff8801000378a0
>> [ 3987.717364] RDX: ffffffff81806110 RSI: ffff8801000378a0 RDI: ffffffff81806108
>> [ 3987.717366] RBP: ffff88012a833e98 R08: 0000000000000000 R09: ffff88012a03d6e8
>> [ 3987.717368] R10: ffff88012a03d6f8 R11: ffff88012a03d6f8 R12: ffff880100037910
>> [ 3987.717370] R13: ffffffffa0404540 R14: 00000000ffffff9c R15: 0000000000000000
>> [ 3987.717372] FS: 00007faddfd6e700(0000) GS:ffff88012fc80000(0000)
>> knlGS:0000000000000000
>> [ 3987.717375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> [ 3987.717377] CR2: 00005653ab778470 CR3: 000000012840c000 CR4: 00000000000406e0
>> [ 3987.717378] Call Trace:
>> [ 3987.717382] iput+0xf9/0x1c0
>> [ 3987.717385] do_unlinkat+0x18d/0x2f0
>> [ 3987.717388] SyS_unlinkat+0x16/0x30
>> [ 3987.717392] entry_SYSCALL_64_fastpath+0x13/0x94
>> [ 3987.717394] RIP: 0033:0x7faddf8a0c17
>> [ 3987.717396] RSP: 002b:00007ffc44a11468 EFLAGS: 00000246 ORIG_RAX:
>> 0000000000000107
>> [ 3987.717399] RAX: ffffffffffffffda RBX: 000055ccd0723428 RCX: 00007faddf8a0c17
>> [ 3987.717401] RDX: 0000000000000000 RSI: 000055ccd07220f0 RDI: 00000000ffffff9c
>> [ 3987.717403] RBP: 000055ccd0723320 R08: 0000000000000003 R09: 0000000000000000
>> [ 3987.717404] R10: 0000000000000100 R11: 0000000000000246 R12: 000055ccd0722060
>> [ 3987.717406] R13: 00007ffc44a115a0 R14: 00007faddfb6a1e4 R15: 0000000000000000
>> [ 3987.717408] Code: 89 df e8 23 7d fe ff eb 8f 48 83 bb 20 02 00 00 00 74 85 48
>> 89 df e8 7f ad 01 00 0f b7 03 66 25 00 f0 e9 6b ff ff ff 0f 0b 0f 0b <0f> 0b 48
>> 8d bb 68 01 00 00 e8 a1 9e fa
>> ff 48 89 df e8 a9 f1 ff
>> [ 3987.717443] RIP: evict+0x161/0x180 RSP: ffff88012a833e80
>> [ 3987.717445] ---[ end trace ca9a0f6be0e72301 ]---
>
> I've been seeing a similar panic. Does the attached patch help?
>
> -Scott
>
>>
>> Looks like it happens in post-test clean-up step (rm), though some processes
>> are still there:
>>
>> root 18489 18329 0 Oct25 pts/1 00:00:00
>> /data/git/xfstests-dev/ltp/aio-stress -t 20 -s 10 -O -I 1000
>> /mnt/test/aiostress.18329.3 /mnt/test/aiostress.18329.3.20
>> /mnt/test/aiostress.18329.3.19 /mnt/test/aiostress.18329.3.18
>> /mnt/test/aiostress.18329.3.17 /mnt/test/aiostress.18329.3.16
>> /mnt/test/aiostress.18329.3.15 /mnt/test/aiostress.18329.3.14
>> /mnt/test/aiostress.18329.3.13 /mnt/test/aiostress.18329.3.12
>> /mnt/test/aiostress.18329.3.11 /mnt/test/aiostress.18329.3.10
>> /mnt/test/aiostress.18329.3.9 /mnt/test/aiostress.18329.3.8
>> /mnt/test/aiostress.18329.3.7 /mnt/test/aiostress.18329.3.6
>> /mnt/test/aiostress.18329.3.5 /mnt/test/aiostress.18329.3.4
>> /mnt/test/aiostress.18329.3.3 /mnt/test/aiostress.18329.3.2
>>
>>
>> I can always re-produce it.
>>
>> Tigran.
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
>> the body of a message to [email protected]
> > More majordomo info at http://vger.kernel.org/majordomo-info.html

2017-11-15 17:09:31

by Mkrtchyan, Tigran

[permalink] [raw]
Subject: Re: Kernel bug triggered with xfstest generic/113

Hi Scott,

you change in did have fixed the issue. The hanging client was related to our server bug.

Tested-by: Tigran Mkrtchyan <[email protected]>

Should this go into stable as well?

Thanks,
Tigran

----- Original Message -----
> From: "Tigran Mkrtchyan" <[email protected]>
> To: "Scott Mayhew" <[email protected]>
> Cc: "linux-nfs" <[email protected]>
> Sent: Wednesday, November 1, 2017 3:29:32 PM
> Subject: Re: Kernel bug triggered with xfstest generic/113

> Hi Scott,
>
> looks like I can't reproduce the BUG, but now it hangs. I will investigate and
> let you know.
>
> Tigran.
>
> ----- Original Message -----
>> From: "Scott Mayhew" <[email protected]>
>> To: "Tigran Mkrtchyan" <[email protected]>
>> Cc: "linux-nfs" <[email protected]>
>> Sent: Tuesday, October 31, 2017 6:39:45 PM
>> Subject: Re: Kernel bug triggered with xfstest generic/113
>
>> On Thu, 26 Oct 2017, Mkrtchyan, Tigran wrote:
>>
>>>
>>>
>>> Against dCache nfs server:
>>>
>>> [ 3987.717284] ------------[ cut here ]------------
>>> [ 3987.717286] kernel BUG at fs/inode.c:567!
>>> [ 3987.717292] invalid opcode: 0000 [#1] SMP
>>> [ 3987.717293] Modules linked in: loop nfs_layout_nfsv41_files rpcsec_gss_krb5
>>> nfsv4 nfs lockd grace fscache binfmt_misc af_packet nf_conntrack_netbios_ns
>>> nf_conntrack_broadcast xt_tcpudp xt
>>> _CT ip6t_REJECT nf_reject_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT
>>> nf_reject_ipv4 nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack
>>> libcrc32c nfnetlink ip6table_mangle ip6ta
>>> ble_raw ip6table_security iptable_mangle iptable_raw iptable_security
>>> ip6table_filter ip6_tables iptable_filter btrfs xor zstd_decompress
>>> zstd_compress xxhash lzo_compress zlib_deflate raid6
>>> _pq snd_hda_codec_idt snd_hda_codec_generic snd_hda_intel snd_hda_codec
>>> snd_hda_core snd_hwdep snd_seq iTCO_wdt iTCO_vendor_support snd_seq_device
>>> snd_timer lpc_ich mfd_core tpm_tis snd_pcm
>>> tpm_tis_core i2c_i801 snd tpm auth_rpcgss oid_registry
>>> [ 3987.717340] sunrpc ip_tables x_tables serio_raw e1000e ptp pps_core autofs4
>>> [ 3987.717349] CPU: 1 PID: 31883 Comm: rm Not tainted
>>> 4.14.0-rc6-01076-gbb176f67090c #120
>>> [
>>> 3987.717350] Hardware name: Comptronic pczW1007/DX38BT, BIOS
>>> BTX3810J.86A.1893.2008.1009.1712 10/09/2008
>>> [ 3987.717353] task: ffff880107f7c480 task.stack: ffff88012a830000
>>> [ 3987.717358] RIP: 0010:evict+0x161/0x180
>>> [ 3987.717360] RSP: 0018:ffff88012a833e80 EFLAGS: 00010202
>>> [ 3987.717362] RAX: ffffffff81806110 RBX: ffff880100037800 RCX: ffff8801000378a0
>>> [ 3987.717364] RDX: ffffffff81806110 RSI: ffff8801000378a0 RDI: ffffffff81806108
>>> [ 3987.717366] RBP: ffff88012a833e98 R08: 0000000000000000 R09: ffff88012a03d6e8
>>> [ 3987.717368] R10: ffff88012a03d6f8 R11: ffff88012a03d6f8 R12: ffff880100037910
>>> [ 3987.717370] R13: ffffffffa0404540 R14: 00000000ffffff9c R15: 0000000000000000
>>> [ 3987.717372] FS: 00007faddfd6e700(0000) GS:ffff88012fc80000(0000)
>>> knlGS:0000000000000000
>>> [ 3987.717375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>>> [ 3987.717377] CR2: 00005653ab778470 CR3: 000000012840c000 CR4: 00000000000406e0
>>> [ 3987.717378] Call Trace:
>>> [ 3987.717382] iput+0xf9/0x1c0
>>> [ 3987.717385] do_unlinkat+0x18d/0x2f0
>>> [ 3987.717388] SyS_unlinkat+0x16/0x30
>>> [ 3987.717392] entry_SYSCALL_64_fastpath+0x13/0x94
>>> [ 3987.717394] RIP: 0033:0x7faddf8a0c17
>>> [ 3987.717396] RSP: 002b:00007ffc44a11468 EFLAGS: 00000246 ORIG_RAX:
>>> 0000000000000107
>>> [ 3987.717399] RAX: ffffffffffffffda RBX: 000055ccd0723428 RCX: 00007faddf8a0c17
>>> [ 3987.717401] RDX: 0000000000000000 RSI: 000055ccd07220f0 RDI: 00000000ffffff9c
>>> [ 3987.717403] RBP: 000055ccd0723320 R08: 0000000000000003 R09: 0000000000000000
>>> [ 3987.717404] R10: 0000000000000100 R11: 0000000000000246 R12: 000055ccd0722060
>>> [ 3987.717406] R13: 00007ffc44a115a0 R14: 00007faddfb6a1e4 R15: 0000000000000000
>>> [ 3987.717408] Code: 89 df e8 23 7d fe ff eb 8f 48 83 bb 20 02 00 00 00 74 85 48
>>> 89 df e8 7f ad 01 00 0f b7 03 66 25 00 f0 e9 6b ff ff ff 0f 0b 0f 0b <0f> 0b 48
>>> 8d bb 68 01 00 00 e8 a1 9e fa
>>> ff 48 89 df e8 a9 f1 ff
>>> [ 3987.717443] RIP: evict+0x161/0x180 RSP: ffff88012a833e80
>>> [ 3987.717445] ---[ end trace ca9a0f6be0e72301 ]---
>>
>> I've been seeing a similar panic. Does the attached patch help?
>>
>> -Scott
>>
>>>
>>> Looks like it happens in post-test clean-up step (rm), though some processes
>>> are still there:
>>>
>>> root 18489 18329 0 Oct25 pts/1 00:00:00
>>> /data/git/xfstests-dev/ltp/aio-stress -t 20 -s 10 -O -I 1000
>>> /mnt/test/aiostress.18329.3 /mnt/test/aiostress.18329.3.20
>>> /mnt/test/aiostress.18329.3.19 /mnt/test/aiostress.18329.3.18
>>> /mnt/test/aiostress.18329.3.17 /mnt/test/aiostress.18329.3.16
>>> /mnt/test/aiostress.18329.3.15 /mnt/test/aiostress.18329.3.14
>>> /mnt/test/aiostress.18329.3.13 /mnt/test/aiostress.18329.3.12
>>> /mnt/test/aiostress.18329.3.11 /mnt/test/aiostress.18329.3.10
>>> /mnt/test/aiostress.18329.3.9 /mnt/test/aiostress.18329.3.8
>>> /mnt/test/aiostress.18329.3.7 /mnt/test/aiostress.18329.3.6
>>> /mnt/test/aiostress.18329.3.5 /mnt/test/aiostress.18329.3.4
>>> /mnt/test/aiostress.18329.3.3 /mnt/test/aiostress.18329.3.2
>>>
>>>
>>> I can always re-produce it.
>>>
>>> Tigran.
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