[Lustre-discuss] obdfilter-survey kernel panic

[subbu kl]

I am trying to run some sanity performance tests on my test Lustre setup
with 1 OSS adn 1 MDS/MGS.
obdfilter-survey always cuses kernel panic where it runs. Am I missing
something?

Any help greatly appreciated.

details as follows -

 [root at p209 ~]# uname -a
Linux p209 2.6.18-53.1.14.el5_lustre.1.6.5.1smp #1 SMP Thu Jun 26 01:38:50
EDT 2008 i686 athlon i386 GNU/Linux
 [root at p209 ~]# lctl dl
 6 UP mgc MGC172.24.198.31 at tcp b34f89bb-1a8f-ef5a-ee91-07c17f08ea85 5
 7 UP ost OSS OSS_uuid 3
 8 UP obdfilter lustre-OST0000 lustre-OST0000_UUID 5
 [root at p209 ~]# nobjhi=2 thrhi=2 size=1024 case=disk sh obdfilter-survey
 BUG: unable to handle kernel NULL pointer dereference at virtual address
0000004
 printing eip:
 dd29fc5d
 *pde = 00000000
 Oops: 0000 [#1]
 SMP
 last sysfs file: /block/hda/removable
 Modules linked in: obdecho(U) obdfilter(U) ost(U) osc(U) loop(U) autofs4(U)
hid)
 CPU:    0
 EIP:    0060:[<dd29fc5d>]    Not tainted VLI
 EFLAGS: 00010246   (2.6.18-53.1.14.el5_lustre.1.6.5.1smp #1)
 EIP is at filter_connect+0x18d/0xe50 [obdfilter]
 eax: 00000000   ebx: cdf07d94   ecx: 00000000   edx: 0000031c
 esi: 00000000   edi: 00000000   ebp: cd890cf8   esp: cdf07cf8
 ds: 007b   es: 007b   ss: 0068
 Process lctl (pid: 4481, ti=cdf06000 task=dbe65aa0 task.ti=cdf06000)
 Stack: 00000000 3033057d ce636630 00f07d68 0000000a ce7b2000 ffffffff
00000000
       dcb25c72 0000057d dcb25533 dcb1e10e 0000004a 00000000 d0267000
00000010
       00000048 d91d2600 cd890cf8 dd29fad0 cffcfd60 dd0425ea cd1e57c0
00000000
 Call Trace:
 [<dd29fad0>] filter_connect+0x0/0xe50 [obdfilter]
 [<dd0425ea>] echo_client_setup+0xcaa/0x16d0 [obdecho]
 [<dcaf1562>] class_setup+0x482/0x1710 [obdclass]
 [<dcaf5dfe>] class_process_config+0x1e9e/0x3120 [obdclass]
 [<dcac3378>] class_handle_ioctl+0x3d98/0x4140 [obdclass]
 [<dca9c015>] obd_class_open+0x15/0x20 [obdclass]
 [<c052f478>] misc_open+0x115/0x1c5
 [<c045482f>] find_get_page+0x18/0x38
 [<c04572e3>] filemap_nopage+0x192/0x30b
 [<dcac3720>] obd_class_ioctl+0x0/0x10 [obdclass]
 [<dca9c101>] obd_class_ioctl+0x81/0x440 [obdclass]
 [<c047f2d7>] do_ioctl+0x47/0x5d
 [<c047f537>] vfs_ioctl+0x24a/0x25c
 [<c047f591>] sys_ioctl+0x48/0x5f
 [<c0404ed3>] syscall_call+0x7/0xb
 =======================
 Code: c0 0f b6 c0 85 c0 89 44 24 34 0f 85 96 0b 00 00 8b 54 24 58 8b 44 24
38 e
 EIP: [<dd29fc5d>] filter_connect+0x18d/0xe50 [obdfilter] SS:ESP
0068:cdf07cf8
 <0>Kernel panic - not syncing: Fatal exception

~subbu
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