[DRBD-user] DRBD BUG (kernel oops)

Christian Iversen chrivers at iversen-net.dk
Thu Jan 6 14:44:19 CET 2011

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Hello.

I was trying to set up a DRBD test resource, using DRBD version:

"GIT-hash: ea9e28dbff98e331a62bcbcc63a6135808fe2917 build by 
root at buildd, 2010-01-23 08:21:00" (8.3.7)

On a "Linux version 2.6.26-2-amd64 (Debian 2.6.26-26lenny1) 
(dannf at debian.org) (gcc version 4.1.3 20080704 (prerelease) (Debian 
4.1.2-25)) #1 SMP Thu Nov 25 04:30:55 UTC 2010", (Debian Lenny).

(backtrace also pasted as http://p.adora.dk/P1868.html)

[3505209.678974] BUG: unable to handle kernel paging request at 
ffffffffa01dcc28
[3505209.678974] IP: [<ffffffff8031259c>] get_disk+0xf/0x5b
[3505209.678974] PGD 203067 PUD 207063 PMD 13dd1c067 PTE 0
[3505209.678974] Oops: 0000 [1] SMP
[3505209.678974] CPU 0
[3505209.678974] Modules linked in: drbd dm_snapshot cn pl2303 usbserial 
ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables dm_mod loop 
usbhid hid ff_memless pcspkr snd_pcm snd_timer snd soundcore ehci_hcd 
snd_page_alloc uhci_hcd igb button evdev ext3 jbd mbcache raid10 raid1 
md_mod sd_mod thermal processor fan thermal_sys ahci libata scsi_mod 
dock [last unloaded: libcrc32c]
[3505209.678974] Pid: 5957, comm: pvremove Not tainted 2.6.26-2-amd64 #1
[3505209.678974] RIP: 0010:[<ffffffff8031259c>]  [<ffffffff8031259c>] 
get_disk+0xf/0x5b
[3505209.678974] RSP: 0018:ffff8101359e3ce8  EFLAGS: 00010282
[3505209.678974] RAX: ffffffffa01dcbe0 RBX: ffff81012c995580 RCX: 
0000000000000001
[3505209.678974] RDX: ffff8101359e3d9c RSI: ffff81005f402400 RDI: 
ffff81005f402400
[3505209.678974] RBP: 000000000930002a R08: 0000000000000000 R09: 
0000000000000000
[3505209.678974] R10: 000000000000000c R11: ffffffff802f351a R12: 
ffff81005f402400
[3505209.678974] R13: ffff81013f0b5000 R14: 0000000000000000 R15: 
ffffffff80311798
[3505209.678974] FS:  00007fdd9f6f4770(0000) GS:ffffffff8053d000(0000) 
knlGS:0000000000000000
[3505209.678974] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[3505209.678974] CR2: ffffffffa01dcc28 CR3: 000000010fed5000 CR4: 
00000000000006e0
[3505209.828340] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 
0000000000000000
[3505209.828340] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 
0000000000000400
[3505209.828340] Process pvremove (pid: 5957, threadinfo 
ffff8101359e2000, task ffff81013dcd0300)
[3505209.828340] Stack:  000001013ac8c118 ffff81012c995580 
000000000930002a ffffffff803125f4
[3505209.828340]  0000000100000296 ffffffff80386da6 00000093bcaab3b7 
ffff8101359e3d9c
[3505209.828340]  0000000000000000 ffff81012d582380 ffff81013d08b800 
00000000fffffff4
[3505209.828340] Call Trace:
[3505209.828340]  [<ffffffff803125f4>] ? exact_lock+0xc/0x14
[3505209.828340]  [<ffffffff80386da6>] ? kobj_lookup+0xd5/0x13d
[3505209.828340]  [<ffffffff802bf993>] ? blkdev_open+0x0/0x5d
[3505209.828340]  [<ffffffff80312805>] ? get_gendisk+0x17/0x2a
[3505209.828340]  [<ffffffff802bf550>] ? do_open+0x67/0x2e8
[3505209.828340]  [<ffffffff802bf993>] ? blkdev_open+0x0/0x5d
[3505209.828340]  [<ffffffff802bf9c1>] ? blkdev_open+0x2e/0x5d
[3505209.828340]  [<ffffffff80299aed>] ? __dentry_open+0x12c/0x238
[3505209.828340]  [<ffffffff802a595e>] ? do_filp_open+0x3d7/0x7c4
[3505209.828340]  [<ffffffff80299828>] ? get_unused_fd_flags+0x71/0x115
[3505209.828340]  [<ffffffff80299912>] ? do_sys_open+0x46/0xc3
[3505209.828340]  [<ffffffff8020beda>] ? system_call_after_swapgs+0x8a/0x8f
[3505209.828340]
[3505209.828340]
[3505209.828340] Code: cd fa ff 41 5b 5b 89 e8 5d c3 48 85 ff 74 0c 48 
81 c7 58 01 00 00 e9 a2 90 00 00 c3 55 53 48 83 ec 08 48 8b 47 38 48 85 
c0 74 43 <48> 8b 68 48 48 85 ed 74 1c 65 8b 04 25 24 00 00 00 83 7d 00 02
[3505209.828340] RIP  [<ffffffff8031259c>] get_disk+0xf/0x5b
[3505209.828340]  RSP <ffff8101359e3ce8>
[3505209.828340] CR2: ffffffffa01dcc28
[3505209.828340] ---[ end trace 6ea075764a5fcd57 ]---


What gives?

-- 
Med venlig hilsen
Christian Iversen



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