[Xen-devel] netback crash with xen3.0.3

[Jacob Gorm Hansen <jacobg@xxxxxxx>]

hi,

I am working on a network driver for mini-os, and after creating a lot
of semi-broken test domains, and a lot of vifs (80 or so), I got dom0 to
crash like below.

I have no idea how to reproduce this, just wanted to let people know
there is a some bug in netback somewhere.

Jacob

========================================================

(The gnttab errors are due to bugs in my domU code)

XEN) (file=/mnt/hda3/home/jacobg/xen-evilman5.hg/xen/include/asm/mm.h,
line=220
) Error pfn d95a: rd=ffb04080, od=00000000, caf=00000000, taf=00000000
(XEN) (file=grant_table.c, line=906) could not get destination frame
d95a.
(XEN) (file=/mnt/hda3/home/jacobg/xen-evilman5.hg/xen/include/asm/mm.h,
line=220
) Error pfn db11: rd=ffb04080, od=00000000, caf=00000000, taf=00000000
(XEN) (file=grant_table.c, line=906) could not get destination frame
db11.
(XEN) (file=/mnt/hda3/home/jacobg/xen-evilman5.hg/xen/include/asm/mm.h,
line=220
) Error pfn db10: rd=ffb04080, od=00000000, caf=00000000, taf=00000000
(XEN) (file=grant_table.c, line=906) could not get destination frame
db10.
(XEN) (file=/mnt/hda3/home/jacobg/xen-evilman5.hg/xen/include/asm/mm.h,
line=220
) Error pfn c805: rd=ffb04080, od=00000000, caf=00000000, taf=00000000
(XEN) (file=grant_table.c, line=906) could not get destination frame
c805.
(XEN) (file=/mnt/hda3/home/jacobg/xen-evilman5.hg/xen/include/asm/mm.h,
line=220
) Error pfn c804: rd=ffb04080, od=00000000, caf=00000000, taf=00000000
(XEN) (file=grant_table.c, line=906) could not get destination frame
c804.
(XEN) (file=/mnt/hda3/home/jacobg/xen-evilman5.hg/xen/include/asm/mm.h,
line=220
) Error pfn c823: rd=ffb04080, od=00000000, caf=00000000, taf=00000000
(XEN) (file=grant_table.c, line=906) could not get destination frame
c823.
(XEN) (file=/mnt/hda3/home/jacobg/xen-evilman5.hg/xen/include/asm/mm.h,
line=220
) Error pfn c822: rd=ffb04080, od=00000000, caf=00000000, taf=00000000
(XEN) (file=grant_table.c, line=906) could not get destination frame
c822.
Unable to handle kernel NULL pointer dereference at virtual address
0000000c
 printing eip:
*pde = ma 00000000 pa fffff000
Oops: 0000 [#1]
Modules linked in:
CPU:    0
EIP:    0061:[<c026c7a8>]    Not tainted VLI
EFLAGS: 00010286   (2.6.16.29-xenxen #13) 
EIP is at net_rx_action+0x483/0x897
eax: 00000001   ebx: 00000000   ecx: 00000000   edx: c0447c60
esi: cbaafa60   edi: 0000001e   ebp: cd6e8880   esp: c03f9eb0
ds: 007b   es: 007b   ss: 0069
Process swapper (pid: 0, threadinfo=c03f8000 task=c039ecc0)
Stack: <0>000000f9 c03f9f3c c06bc030 00000000 00000000 00000001 00000001
0000000
0 
       00000000 cbaafa60 00000000 00000000 c03f9f0c c0114593 00000000
00000000 
       00000000 00000000 00000000 00000001 00000000 00000001 00000001
00000001 
Call Trace:
 [<c0114593>] __wake_up_common+0x2a/0x4a
 [<c011b86c>] tasklet_action+0x52/0x8e
 [<c011b73f>] __do_softirq+0x46/0x99
 [<c011b7bd>] do_softirq+0x2b/0x48
 [<c0105bae>] do_IRQ+0x1f/0x25
 [<c02624cf>] evtchn_do_upcall+0x4f/0x76
 [<c01046bd>] hypervisor_callback+0x3d/0x48
 [<c0106c2f>] safe_halt+0x6b/0x84
 [<c0102bc1>] xen_idle+0x36/0x3d
 [<c0102c78>] cpu_idle+0x2d/0x42
 [<c03fa607>] start_kernel+0x26e/0x270
Code: e0 04 03 44 24 74 f6 40 0c 01 74 3c 8b 44 24 58 6b d0 18 40 89 44
24 58 03
 54 24 6c 66 83 7a 14 00 0f 84 94 00 00 00 8b 4c 24 2c <0f> bf 41 0c 57
50 68 f7
 fb 36 c0 e8 ca b9 ea ff c7 44 24 34 ff 
 <0>Kernel panic - not syncing: Fatal exception in interrupt
 (XEN) Domain 0 crashed: rebooting machine in 5 seconds.




_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel