I received the following trying to unmount a GFS partition.
I tried to unmount a GFS partition shared between three nodes and it
hung.
I discovered that one of the nodes had become unresponsive so I manually
ACKED the fence request and attempted to unmount. The following
occurred:
Unable to handle kernel paging request at virtual address 001dae44
printing eip:
f88cda59
*pde = 00000000
Oops: 0000 [#1]
SMP
Modules linked in: lock_dlm dlm cman gfs lock_harness 8250 serial_core
dm_mod
CPU: 0
EIP: 0060:[<f88cda59>] Not tainted
EFLAGS: 00010286 (2.6.8.1)
EIP is at name_to_directory_nodeid+0x15/0xf9 [dlm]
eax: 001dae00 ebx: e8dc304c ecx: c1b5ae3c edx: e8dc304c
esi: 00000000 edi: 001dae00 ebp: e8dc304c esp: f7297ec0
ds: 007b es: 007b ss: 0068
Process dlm_recoverd (pid: 859, threadinfo=f7296000 task=f7125930)
Stack: f706c000 f706c000 c1b5ae00 00000000 f88db235 00000000 e8dc304c
c1b5ae00
c1b5aef0 e8dc304c f88cdb5e 001dae00 e8dc30c5 00000018 f88dc727
e8dc304c
00000003 00000003 f706c000 00000000 001dae00 e8dc304c e8dc304c
c1b5ae00
Call Trace:
[<f88db235>] rcom_send_message+0xe1/0x217 [dlm]
[<f88cdb5e>] get_directory_nodeid+0x21/0x25 [dlm]
[<f88dc727>] rsb_master_lookup+0x1a/0x126 [dlm]
[<f88dc9a6>] restbl_rsb_update+0x142/0x165 [dlm]
[<f88dcf04>] ls_reconfig+0xd5/0x220 [dlm]
[<f88ddf71>] dlm_recoverd+0x0/0x66 [dlm]
[<f88ddc99>] do_ls_recovery+0x16c/0x444 [dlm]
[<f88ddfbd>] dlm_recoverd+0x4c/0x66 [dlm]
[<c012aeb9>] kthread+0xb7/0xbd
[<c012ae02>] kthread+0x0/0xbd
[<c0102161>] kernel_thread_helper+0x5/0xb
Code: 83 7f 44 01 74 65 8b 44 24 34 89 44 24 04 8b 44 24 30 89 04
Unable to handle kernel paging request at virtual address 001dae44
f88cda59
*pde = 00000000
Oops: 0000 [#1]
CPU: 0
EIP: 0060:[<f88cda59>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010286 (2.6.8.1)
eax: 001dae00 ebx: e8dc304c ecx: c1b5ae3c edx: e8dc304c
esi: 00000000 edi: 001dae00 ebp: e8dc304c esp: f7297ec0
ds: 007b es: 007b ss: 0068
Stack: f706c000 f706c000 c1b5ae00 00000000 f88db235 00000000 e8dc304c
c1b5ae00
c1b5aef0 e8dc304c f88cdb5e 001dae00 e8dc30c5 00000018 f88dc727
e8dc304c
00000003 00000003 f706c000 00000000 001dae00 e8dc304c e8dc304c
c1b5ae00
[<f88db235>] rcom_send_message+0xe1/0x217 [dlm]
[<f88cdb5e>] get_directory_nodeid+0x21/0x25 [dlm]
[<f88dc727>] rsb_master_lookup+0x1a/0x126 [dlm]
[<f88dc9a6>] restbl_rsb_update+0x142/0x165 [dlm]
[<f88dcf04>] ls_reconfig+0xd5/0x220 [dlm]
[<f88ddf71>] dlm_recoverd+0x0/0x66 [dlm]
[<f88ddc99>] do_ls_recovery+0x16c/0x444 [dlm]
[<f88ddfbd>] dlm_recoverd+0x4c/0x66 [dlm]
[<c012aeb9>] kthread+0xb7/0xbd
[<c012ae02>] kthread+0x0/0xbd
[<c0102161>] kernel_thread_helper+0x5/0xb
Code: 83 7f 44 01 74 65 8b 44 24 34 89 44 24 04 8b 44 24 30 89 04
>>EIP; f88cda59 <pg0+38477a59/3fba8000> <=====
>>eax; 001dae00 Before first symbol
>>ebx; e8dc304c <pg0+2896d04c/3fba8000>
>>ecx; c1b5ae3c <pg0+1704e3c/3fba8000>
>>edx; e8dc304c <pg0+2896d04c/3fba8000>
>>edi; 001dae00 Before first symbol
>>ebp; e8dc304c <pg0+2896d04c/3fba8000>
>>esp; f7297ec0 <pg0+36e41ec0/3fba8000>
Code; f88cda59 <pg0+38477a59/3fba8000>
00000000 <_EIP>:
Code; f88cda59 <pg0+38477a59/3fba8000> <=====
0: 83 7f 44 01 cmpl $0x1,0x44(%edi) <=====
Code; f88cda5d <pg0+38477a5d/3fba8000>
4: 74 65 je 6b <_EIP+0x6b> f88cdac4
<pg0+38477ac4/3fba8000>
Code; f88cda5f <pg0+38477a5f/3fba8000>
6: 8b 44 24 34 mov 0x34(%esp,1),%eax
Code; f88cda63 <pg0+38477a63/3fba8000>
a: 89 44 24 04 mov %eax,0x4(%esp,1)
Code; f88cda67 <pg0+38477a67/3fba8000>
e: 8b 44 24 30 mov 0x30(%esp,1),%eax
Code; f88cda6b <pg0+38477a6b/3fba8000>
12: 89 04 00 mov %eax,(%eax,%eax,1)
