Messages in this thread |  | | From | "Michael S. Fischer" <> | Subject | Oops in md_error/set_disk_faulty | Date | Wed, 5 Sep 2001 14:28:43 -0700 |
| |
Kernel: 2.4.8-ac8 raidsetfaulty v0.3d compiled for md raidtools-0.90
I accidentally entered the wrong disk device in a raidsetfaulty command, which caused a kernel oops and appears to have locked the thread (so that subsequent commands just hang).
The md device in question was:
md2 : active raid1 sdb4[0] sda4[1] 5839552 blocks [2/2] [UU]
And the command I entered was
# raidsetfaulty /dev/md2 /dev/hdb4 Segmentation fault
Then, I realized I put in the wrong device, so I tried to fix it...
# raidsetfaulty /dev/md2 /dev/sdb4 [hangs eternally]
I checked the kernel logs, and sure enough:
Unable to handle kernel NULL pointer dereference at virtual address 00000034 printing eip: c01f36ff *pde = 00000000 Oops: 0000 CPU: 0 EIP: 0010:[<c01f36ff>] EFLAGS: 00010292 eax: 00000000 ebx: 00000000 ecx: f7d33494 edx: f7dc2920 esi: f7d33480 edi: 00000344 ebp: 00000000 esp: e57d3ed0 ds: 0018 es: 0018 ss: 0018 Process raidsetfaulty (pid: 9586, stackpage=e57d3000) Stack: 00000344 f7d33480 00000002 c01f2b26 f7d33480 00000344 00000902 f7d33480 00000344 c01f325f f7d33480 00000344 00000929 ffffffe7 00000344 c2e86de0 f74edd60 f74edd60 c061cba0 00000000 f7d33480 00000000 bffffe88 bffffb1c Call Trace: [<c01f2b26>] [<c01f325f>] [<c0146969>] [<c013bac8>] [<c0142af9>]
[<c0106d4b>]
>>EIP; c01f36ff <md_error+43/bc> <===== Trace; c01f2b26 <set_disk_faulty+22/28> Trace; c01f325f <md_ioctl+733/7d0> Trace; c0146969 <dput+19/144> Trace; c013bac8 <blkdev_ioctl+28/38> Trace; c0142af9 <sys_ioctl+2ad/2f4> Trace; c0106d4b <system_call+33/38> Code; c01f36ff <md_error+43/bc> 00000000 <_EIP>: Code; c01f36ff <md_error+43/bc> <===== 0: 83 7b 34 00 cmpl $0x0,0x34(%ebx) <===== Code; c01f3703 <md_error+47/bc> 4: 74 0b je 11 <_EIP+0x11> c01f3710 <md_error+54/bc> Code; c01f3705 <md_error+49/bc> 6: 31 c0 xor %eax,%eax Code; c01f3707 <md_error+4b/bc> 8: eb 6b jmp 75 <_EIP+0x75> c01f3774 <md_error+b8/bc> Code; c01f3709 <md_error+4d/bc> a: 8d b4 26 00 00 00 00 lea 0x0(%esi,1),%esi Code; c01f3710 <md_error+54/bc> 11: 8b 46 04 mov 0x4(%esi),%eax
-- Michael S. Fischer / michael at auctionwatch.com Systems Engineer, AuctionWatch Inc. / Phone: +1 650 808 5842 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |