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[Linux-cluster] gnbd crash


I was attempting to use gnbd. I exported the device on the server and
attempted to mount it on the client.

mount /dev/gnbd/export1 /mnt on the client hangs. The server shows the
following in dmesg:

Unable to handle kernel paging request at virtual address 19191959
 printing eip:
*pde = 00000000
Oops: 0000 [#1]
Modules linked in: gnbd lock_dlm dlm cman gfs lock_harness dm_mod
CPU:    0
EIP:    0060:[<f8982489>]    Not tainted
EFLAGS: 00010282   (2.6.7) 
EIP is at name_to_directory_nodeid+0x15/0xf9 [dlm]
eax: 19191919   ebx: f1d02cd4   ecx: 00000000   edx: f1d02cc4
esi: 00000000   edi: 19191919   ebp: f1d02cc4   esp: f74d3df4
ds: 007b   es: 007b   ss: 0068
Process dlm_recoverd (pid: 641, threadinfo=f74d2000 task=f4a00940)
Stack: 00000000 00000025 00000001 c01ed6dd c01ede1c 00000000 f1d02cd4
       dc8260d4 f1d02cc4 f898258e 19191919 f1d02d3d 00000000 f8982b51
       f74d3e58 00000008 c04010a0 00000246 00000001 c18d7ccc dc8260bc
Call Trace:
 [<c01ed6dd>] scrup+0x13b/0x14f
 [<c01ede1c>] complement_pos+0x20/0x183
 [<f898258e>] get_directory_nodeid+0x21/0x25 [dlm]
 [<f8982b51>] dlm_dir_rebuild_send+0xec/0x27d [dlm]
 [<f898f721>] rcom_process_message+0x2d6/0x558 [dlm]
 [<f898f3f9>] rcom_send_message+0x1c5/0x217 [dlm]
 [<f89828f4>] dlm_dir_rebuild_local+0x12b/0x29c [dlm]
 [<f8990edc>] ls_reconfig+0x79/0x292 [dlm]
 [<f8991cac>] do_ls_recovery+0x166/0x436 [dlm]
 [<f89920bf>] dlm_recoverd+0x143/0x16e [dlm]
 [<c0115b6c>] default_wake_function+0x0/0x12
 [<c0103cc6>] ret_from_fork+0x6/0x14
 [<c0115b6c>] default_wake_function+0x0/0x12
 [<f8991f7c>] dlm_recoverd+0x0/0x16e [dlm]
 [<c0102131>] kernel_thread_helper+0x5/0xb

Code: 83 7f 40 01 74 65 8b 44 24 34 89 44 24 04 8b 44 24 30 89 04 

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