[Xen-devel] Another dom0 crash (Unable to handle kernel NULL pointer dereference)

["Christopher S. Aker" <caker@xxxxxxxxxxxx>]

This time running Xen 3.0.2-2, PAE

Previous post:
http://lists.xensource.com/archives/html/xen-devel/2006-04/msg00446.html

Unable to handle kernel NULL pointer dereference at virtual address 00000004
 printing eip:
c0161905
07786000 -> *pde = 00000001:058d6001
06e54000 -> *pme = 00000000:00000000
Oops: 0002 [#1]
SMP
Modules linked in:
CPU:    1
EIP:    0061:[<c0161905>]    Not tainted VLI
EFLAGS: 00010046   (2.6.16-xen0 #1)
EIP is at cache_alloc_refill+0x185/0x560
eax: c0670f00   ebx: ffffffff   ecx: 00000010   edx: 00000000
esi: c8bd1000   edi: 00000002   ebp: c00dfe00   esp: cfa7be3c
ds: 007b   es: 007b   ss: 0069
Process kjournald (pid: 1187, threadinfo=cfa7a000 task=cfa0ca70)
Stack: <0>000016a7 00000000 c0525e40 00000050 00000050 00000050 c0673b40 
c066f800
       c0670f00 c01408db c0664958 cfa7a000 c10f06e0 c8bd101c 00000001 
c10f06e0
       00000000 00000000 00001000 c0161777 c10f06e0 00000000 c01679e9 
c0673b40
Call Trace:
 [<c01408db>] add_to_page_cache+0x6b/0x100
 [<c0161777>] kmem_cache_alloc+0x77/0x80
 [<c01679e9>] alloc_buffer_head+0x19/0x50
 [<c01695fc>] alloc_page_buffers+0x3c/0xe0
 [<c016b16f>] __getblk+0x15f/0x2b0
 [<c01ea978>] journal_get_descriptor_buffer+0x68/0xd0
 [<c01e68d1>] journal_commit_transaction+0xd01/0x11f0
 [<c0128300>] lock_timer_base+0x20/0x50
 [<c0129259>] try_to_del_timer_sync+0x49/0x60
 [<c01e9680>] kjournald+0xc0/0x230
 [<c01e8e80>] commit_timeout+0x0/0x10
 [<c0134130>] autoremove_wake_function+0x0/0x60
 [<c01e95c0>] kjournald+0x0/0x230
 [<c0102cc5>] kernel_thread_helper+0x5/0x10
Code: 56 0c 8b 3c b8 89 7e 14 89 54 8d 14 41 89 4d 00 8b 44 24 18 8b 7e 
10 3b 78 38 0f 83 3a ff ff ff 4b 83 fb ff 75 c0 8b 16 8b 46 04 <89> 42 
04 89 10 83 7e 14 ff c7 06 00 01 10 00 c7 46 04 00 02 20
-Chris


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