Kernel panic occurs during hot backup


Symptom
Kernel panic could occur during hot backup.


Outputted Kernel dump.
********************************************************
<2>kernel BUG at /src_4x_aipsnap/lxAipSnap/asyncio.c:547!
<4>invalid opcode: 0000 [#1] SMP


<4>Call Trace:
<4> [<ffffffffa01f614c>] njs_put_iocache+0x1c/0x1a0 [aipsnap]
<4> [<ffffffffa01f87b6>] read_from_snapshot_2+0x3e6/0x4a0 [aipsnap]
<4> [<ffffffff81012b69>] ? read_tsc+0x9/0x20
<4> [<ffffffffa01fd363>] njs_worker_thread+0x1f3/0x270 [aipsnap]
<4> [<ffffffffa01fd170>] ? njs_worker_thread+0x0/0x270 [aipsnap]
<4> [<ffffffff81096916>] kthread+0x96/0xa0
<4> [<ffffffff8100c0ca>] child_rip+0xa/0x20
<4> [<ffffffff81096880>] ? kthread+0x0/0xa0
<4> [<ffffffff8100c0c0>] ? child_rip+0x0/0x20
<4>Code: 75 22 48 c7 c7 28 49 20 a0 e8 67 a6 31 e1 48 c7 c7 28 49 20 a0 48 89 c6 83 2d 8a df 00 00 01 e8 c1 a7 31 e1 48 83 c4 08 5b c9 c3 <0f> 0b eb fe 44 8b 43 48 48 89 d9 ba 21 02 00 00 48 c7 c6 67 ef
<1>RIP [<ffffffffa01f5846>] cache_put+0x66/0x90 [aipsnap]
<4> RSP <ffff88007da2bd40>
********************************************************

Cause
This is a known bug/defect.

 

Resolution
This problem has been fixed in ver 4.5.

 

Tags: NJKB-40
Last update:
2018-08-31 04:14
Author:
Revision:
1.5
Average rating:0 (0 Votes)

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