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Bug #4880

open

kernel panic due to zpool i/o on a flash card

Added by Denis Kozadaev about 8 years ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Start date:
2014-05-23
Due date:
% Done:

0%

Estimated time:
Difficulty:
Medium
Tags:
needs-triage
Gerrit CR:

Description

illumos was built from the source at 20 of may (to define a revision)
a zfs pool was created on an external flash card via an external USB-hub
so, there is a panic occured
dump is available here: http://witch.tambov.ru/vmdump.0
the size is 4.1GB

> ::panicinfo                         
             cpu               22
          thread ffffff007c73cc40
         message I/O to pool 'sd32gb' appears to be hung.
          *** cuted ***

and the stack:
> $C
ffffff007c73ca20 vpanic()
ffffff007c73ca70 vdev_deadman+0x10b(ffffff116af9eac0)
ffffff007c73cac0 vdev_deadman+0x4a(ffffff11e0a97a80)
ffffff007c73caf0 spa_deadman+0xad(ffffff13f6d44000)
ffffff007c73cb90 cyclic_softint+0xf3(ffffff115b9c1ac0, 0)
ffffff007c73cba0 cbe_low_level+0x14()
ffffff007c73cbf0 av_dispatch_softvect+0x78(2)
ffffff007c73cc20 dispatch_softint+0x39(0, 0)
ffffff007c706a20 switch_sp_and_call+0x13()
ffffff007c706a60 dosoftint+0x44(ffffff007c706ad0)
ffffff007c706ac0 do_interrupt+0xba(ffffff007c706ad0, 16)
ffffff007c706ad0 _interrupt+0xba()
ffffff007c706bc0 mach_cpu_idle+6()
ffffff007c706bf0 cpu_idle+0x11a()
ffffff007c706c00 cpu_idle_adaptive+0x13()
ffffff007c706c20 idle+0xa7()
ffffff007c706c30 thread_start+8()

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