[Xen-bugs] [Bug 1364] New: domU crashed with kernel panic when using md device

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1364

           Summary: domU crashed with kernel panic when using md device
           Product: Xen
           Version: unspecified
          Platform: x86-64
        OS/Version: Linux-2.6
            Status: NEW
          Severity: critical
          Priority: P2
         Component: Hypervisor
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: shota@xxxxxxxxxx


Using Xen-3.3.0 with centos 5.2 x86_64, domU crashed while installing CentOS5.2
x86_64 domU.
During kickstart install, kernel panic ocurred and crashed.

below is a part of kickstart file
# Partition clearing information
clearpart --all --initlabel
part /boot --fstype ext3 --size=256 --ondisk=xvda
part raid.10 --size=100 --grow --ondisk=xvda
part raid.9 --size=100 --grow --ondisk=xvdb
raid pv.11 --fstype "physical volume (LVM)" --level=RAID1 --device=md0 raid.9
raid.10
volgroup raidVG pv.11
logvol swap --fstype swap --name=swapLV --vgname=raidVG --size=1024
logvol / --fstype ext3 --name=rootLV --vgname=raidVG --size=4000 --grow


below is log.

 ----------- [cut here ] --------- [please bite here ] ---------
Kernel BUG at drivers/xen/blkfront/blkfront.c:567                     |         
invalid opcode: 0000 [1] SMP -----------------------------------------+         
last sysfs file: /block/ram0/dev                                                
CPU 0                                                                           
Modules linked in: dm_emc dm_round_robin dm_multipath dm_snapshot dm_mirror
dm_zero dm_mod lock_nolock gfs2 ext3 jbd msdos raid456 xor raid1 raid0 xenblk
xennet iscsi_ibft iscsi_tcp libiscsi scsi_transport_iscsi sr_mod sd_mod
scsi_mod ide_cd cdrom ipv6 xfrm_nalgo crypto_api squashfs pcspkr loop nfs
nfs_acl fscache lockd sunrpc vfat fat cramfs
Pid: 1661, comm: ldconfig Not tainted 2.6.18-92.el5xen #1
RIP: e030:[<ffffffff8825072b>]  [<ffffffff8825072b>]
:xenblk:do_blkif_request+0x181/0x384
RSP: e02b:ffff88000cb71bc8  EFLAGS: 00010046
RAX: 000000000000000b RBX: 0000000000000008 RCX: 0000000000000000
RDX: 000000000000000c RSI: 0000000000000000 RDI: 00000000000019c8
RBP: ffff88000f7515f0 R08: ffff880001a71e38 R09: 000007000000015d
R10: 0000070000000473 R11: ffffffff882505aa R12: ffff88000f770000
R13: ffff880001dcf370 R14: ffff880001a71e38 R15: ffff880003475b40
FS:  00002ad8a67a7cc0(0063) GS:ffffffff805ae000(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000
Process ldconfig (pid: 1661, threadinfo ffff88000cb70000, task
ffff88000feea0c0)
Stack:  ffff88000f775968  ffff88000f770000  000000000f775a48  0000000000000339 
 0000000000000006  0000000880233446  0000000b00003000  ffffffff80501550 
 ffffffff00000001  ffff88000f775968 
Call Trace:
 [<ffffffff8025cd20>] generic_unplug_device+0x18/0x2b
 [<ffffffff8826929b>] :raid1:unplug_slaves+0x5d/0x98
 [<ffffffff80229229>] sync_page+0x0/0x42
 [<ffffffff882692f2>] :raid1:raid1_unplug+0x10/0x1d
 [<ffffffff88386b4b>] :dm_mod:dm_table_unplug_all+0x33/0x40
 [<ffffffff88384d71>] :dm_mod:dm_unplug_all+0x1d/0x28
 [<ffffffff8025eadf>] blk_backing_dev_unplug+0x54/0x5a
 [<ffffffff80229262>] sync_page+0x39/0x42
 [<ffffffff802636a7>] __wait_on_bit_lock+0x36/0x66
 [<ffffffff8024156f>] __lock_page+0x5e/0x64
 [<ffffffff8029b96f>] wake_bit_function+0x0/0x23
 [<ffffffff80213c11>] filemap_nopage+0x22a/0x322
 [<ffffffff80208dad>] __handle_mm_fault+0x440/0x11bd
 [<ffffffff802648a1>] _spin_lock_irqsave+0x9/0x14
 [<ffffffff80267374>] do_page_fault+0xf7b/0x12e0
 [<ffffffff8021cb3e>] vma_link+0xd0/0xfd
 [<ffffffff8020e1bb>] do_mmap_pgoff+0x637/0x7a2
 [<ffffffff80260823>] error_exit+0x0/0x6e


Code: 0f 0b 68 03 15 25 88 c2 37 02 49 8b 4d 00 48 2b 0d 18 63 43 
RIP  [<ffffffff8825072b>] :xenblk:do_blkif_request+0x181/0x384
 RSP <ffff88000cb71bc8>
 <0>Kernel panic - not syncing: Fatal exception

in xend.log,
[2008-10-02 17:11:34 3635] WARNING (XendDomainInfo:1617) Domain has crashed:
name=host2 id=2.


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