I got two more kernel panics while playing with drives. (To be precise,
I was taking them off-line one at a time to use DOS-based vendor
diagnostics on them.) I was cold-swapping them at the time (mdadm
/dev/mdX -f /dev/hdeY; hdparm -Y /dev/hde; unplug), which wasn't the
safest thing in the world, but I still don't expect kernel panics.
The first one is a copy of what I saw the other day. For the second
one I forgot to disable hddtemp and smartd, which I thought might have
triggered the problem. For the third, I was quite sure that nothing
was accessing the drive.
All are hand-typed from photographs of the console after panic.
I think it's an IDE problem more than a RAID problem, but I've Cc:ed
the linux-raid list just in case someone there has any ideas.
i686 processor, 440BX motherboard, 1 GB ECC memory (you can see
from the kernel addresses that I'm using a 2.75/1.25 G memory split),
has been in production with excellent stability for a long time.
non-modular 2.6.18 + linuxpps patches.
=== Panic # 1 ===
Call Trace:
[<b0248228>] ata_output_data+0x4d/0x64
[<b024a60f>] ide_pio_sector+0xcd/0x102
[<b024af35>] ide_pio_datablock+0x46/0x5c
[<b024b160>] pre_task_out_intr+0x9a/0xa5
[<b0246812>] ide_do_request+0x52b/0x6e0
[<b01cb5c3>] __generic_unplug_device+0x1d/0x1f
[<b01cbe7b>] generic_unplug_device+0x6/0x8
[<b0263252>] unplug_slaves+0x4b/0x7a
[<b02650c8>] raid1d+0xa51/0xac0
[<b026f123>] md_thread+0xd6/0xef
[<b0120db7>] kthread+0x1d/0xda
[<b0100b3d>] kernel_thread_helper+0x5/0xb
DWARF2 unwinder stuck at kernel_thread_helper+0x5/0xb
Leftover inexact backtrace:
Code: c3 89 c2 ed c3 57 89 d7 89 c2 f3 6d 5f c3 89 d0 89 ca ee c3 0f b7 c0 66 ef c3 56 89 d6 89 c2 f3 66 6f 5e c3 ef c3 56 89 d6 89 c2 <f3> 6f 5e c3 c7 80 00 05 00 00 45 82 24 b0 c7 80 04 05 00 00 52
EIP: [<b024726f>] ide_outsl+0x5/0x9 SS:ESP 0068:eff4ddf0
<1>BUG: unable to handle kernel paging request at virtual address 30000200
printing eip:
b024726f
*pde = 00000000
Oops: 0000 [#2]
CPU: 0
EIP: 0060:[<b024726f>] Not tainted VLI
EFLAGS: 00010246 (2.6.18 #4)
EIP is at ide_outsl+0x5/0x9
eax: 0000b000 ebx: b0444d18 ecx: 00000080 edx: 0000b000
esi: 30000200 edi: b0444d18 ebp: 00000080 esp: b0421f3c
ds: 007b es: 007b ss: 0068
Process klogd (pid: 1146, ti=b0421000 task=eff08ad0 task.ti=b1a2b000)
Stack: b0444dac b0248228 30000200 b0444d18 30000200 b0444dac b0444d18 b024a60f
00000020 00000200 00000001 0000000f b0444dac 00000001 b0444d18 b024af35
ffffffff b0444dac c2baef38 b024afc5 b190ef04 b0444dac 00000286 b190eee0
Call Trace:
[<b0248228>] ata_output_data+0x4d/0x64
[<b024a60f>] ide_pio_sector+0xcd/0x102
[<b024af35>] ide_pio_datablock+0x46/0x5c
[<b024afc5>] task_out_intr+0x7a/0x9c
[<b02471e1>] ide_intr+0x13d/0x188
[<b012795e>] handle_IRQ_event+0x23/0x49
[<b01279e2>] __do_IRQ+0x5e/0xa4
[<b0142ca2>] do_IRQ+0x91/0xaf
Code: c3 89 c2 ed c3 57 89 d7 89 c2 f3 6d 5f c3 89 d0 89 ca ee c3 0f b7 c0 66 ef c3 56 89 d6 89 c2 f3 66 6f 5e c3 ef c3 56 89 d6 89 c2 <f3> 6f 5e c3 c7 80 00 05 00 00 45 82 24 b0 c7 80 04 05 00 00 52
EIP: [<b024726f>] ide_outsl+0x5/0x9 SS:ESP 0068:b0421f3c
<0>Kernel panic - not syncing: Fatal exception in interrupt
=== Panic # 2 ===
Call Trace:
[<b0248228>] ata_output_data+0x4d/0x64
[<b024a60f>] ide_pio_sector+0xcd/0x102
[<b024af35>] ide_pio_datablock+0x46/0x5c
[<b024b160>] pre_task_out_intr+0x9a/0xa5
[<b0246812>] ide_do_request+0x52b/0x6e0
[<b01cb5c3>] __generic_unplug_device+0x1d/0x1f
[<b01cbe7b>] generic_unplug_device+0x6/0x8
[<b0263252>] unplug_slaves+0x4b/0x7a
[<b02650c8>] raid1d+0xa51/0xac0
[<b026f123>] md_thread+0xd6/0xef
[<b0120db7>] kthread+0x1d/0xda
[<b0100b3d>] kernel_thread_helper+0x5/0xb
DWARF2 unwinder stuck at kernel_thread_helper+0x5/0xb
Leftover inexact backtrace:
Code: c3 89 c2 ed c3 57 89 d7 89 c2 f3 6d 5f c3 89 d0 89 ca ee c3 0f b7 c0 66 ef c3 56 89 d6 89 c2 f3 66 6f 5e c3 ef c3 56 89 d6 89 c2 <f3> 6f 5e c3 c7 80 00 05 00 00 45 82 24 b0 c7 80 04 05 00 00 52
EIP: [<b024726f>] ide_outsl+0x5/0x9 SS:ESP 0068:efcd7df0
<1>BUG: unable to handle kernel paging request at virtual address 30000200
printing eip:
b024726f
*pde = 00000000
Oops: 0000 [#2]
CPU: 0
EIP: 0060:[<b024726f>] Not tainted VLI
EFLAGS: 00010246 (2.6.18 #4)
EIP is at ide_outsl+0x5/0x9
eax: 0000a000 ebx: b0445400 ecx: 00000080 edx: 0000a000
esi: 30000200 edi: b0445400 ebp: 00000080 esp: b0421f3c
ds: 007b es: 007b ss: 0068
Process swapper (pid: 0, ti=b0421000 task=b0349b40 task.ti=b03f4000)
Stack: b0445494 b0248228 30000200 b0445400 30000200 b0445494 b0445400 b024a60f
00000020 00000200 00000001 0000000f b0445494 00000001 b0445400 b024af35
ffffffff b0445494 ebff2e94 b024afc5 efeffe04 b0445494 00000286 efeffde0
Call Trace:
[<b0248228>] ata_output_data+0x4d/0x64
[<b024a60f>] ide_pio_sector+0xcd/0x102
[<b024af35>] ide_pio_datablock+0x46/0x5c
[<b024afc5>] task_out_intr+0x7a/0x9c
[<b02471e1>] ide_intr+0x13d/0x188
[<b012795e>] handle_IRQ_event+0x23/0x49
[<b01279e2>] __do_IRQ+0x5e/0xa4
[<b0142ca2>] do_IRQ+0x91/0xaf
Code: c3 89 c2 ed c3 57 89 d7 89 c2 f3 6d 5f c3 89 d0 89 ca ee c3 0f b7 c0 66 ef c3 56 89 d6 89 c2 f3 66 6f 5e c3 ef c3 56 89 d6 89 c2 <f3> 6f 5e c3 c7 80 00 05 00 00 45 82 24 b0 c7 80 04 05 00 00 52
EIP: [<b024726f>] ide_outsl+0x5/0x9 SS:ESP 0068:b0421f3c
<0>Kernel panic - not syncing: Fatal exception in interrupt
=== Panic # 3 ===
[<b0142ca2>] do_IRQ+0x91/0xaf
[<b01027aa>] common_interrupt+0x1a/0x20
DWARF2 unwinder stuck at common_interrupt+0x1a/0x20
Leftover inexact backtrace:
[<b0127952>] handle_IRQ_event+0x17/0x49
[<b01279e2>] __do_IRQ+0x5e/0xa4
[<b01042ca>] do_IRQ+0x91/0xaf
=======================
[<b01027aa>] common_interrupt+0x1a/0x20
[<b027007b>] bitmap_startwrite+0xa4/0x121
[<b0116db6>] __do_softirq+0x2c/0x75
[<b0104326>] do_softirq+0x32/0x90
=======================
[<b0102e94>] show_stack_log_lvl+0x9d/9xa5
[<b01042dc>] do_IRQ+0xa3/0xaf
[<b01027aa>] common_interrupt+0x1a/0x20
[<b0103218>] die+0x182/0x1cb
[<b010ca37>] do_page_fault+0x3c8/0x49d
[<b010c66f>] do_page_fault+0x0/0x49d
[<b010285d>] error_code+0x39/0x40
[<b024726f>] ide+outsl+0x5/0x9
[<b0248228>] ata_output_data+0x4d/0x64
[<b024a60f>] ide_pio_sector+0xcd/0x102
[<b024af35>] ide_pio_datablock+0x46/0x5c
[<b024b160>] pre_task_out_intr+0x9a/0xa5
[<b0246812>] ide_do_request+0x52b/0x6e0
[<b01cabb3>] generic_make_request+0x159/0x169
[<b0110bf8>] __wake_up+0x11/0x1a
[<b01cb59a>] blk_remove_plug+0x4e/0x5a
[<b026ef2e>] md_check_recovery+0x3ad/0x3b5
[<b01cb5c3>] __generic_unplug_device+0x1d/0x1f
[<b01cbe7b>] generic_unplug_device+0x6/0x8
[<b0263252>] unplug_slaves+0x4b/0x7a
[<b02650c8>] raid1d+0xa51/0xac0
[<b01042dc>] do_IRQ+0xa3/0xaf
[<b02fc360>] schedule+0x46a/0x4ce
[<b02fc8f9>] schedule_timeout+0x13/0xa0
[<b0265132>] raid1d+0xabb/0xac0
[<b026f123>] md_thread+0xd6/0xef
[<b0120f1c>] autoremove_wake_function+0x0/0x35
[<b026f04d>] md_thread+0x0/0xef
[<b0120db7>] kthread+0xad/0xda
[<b0120d0a>] kthread+0x0/0xda
[<b0100b3d>] kernel_thread_helper+0x5/0xb
Code: c3 89 c2 ed c3 57 89 d7 89 c2 f3 6d 5f c3 89 d0 89 ca ee c3 0f b7 c0 66 ef c3 56 89 d6 89 c2 f3 66 6f 5e c3 ef c3 56 89 d6 89 c2 <f3> 6f 5e c3 c7 80 00 05 00 00 45 82 24 b0 c7 80 04 05 00 00 52
EIP: [<b024726f>] ide_outsl+0x5/0x9 SS:ESP 0068:b0421ebc
<0>Kernel panic - not syncing: Fatal exception in interrupt
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