[Xen-bugs] [Bug 97] New: Oops in skb_release_data

[pl@xxxxxxxxxx]

http://bugzilla.xensource.com/cgi-bin/bugzilla/show_bug.cgi?id=97

           Summary: Oops in skb_release_data
           Product: Xen
           Version: unstable
          Platform: x86
        OS/Version: Linux-2.6
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Hypervisor
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: pl@xxxxxxxxxx
                CC: hohnbaum@xxxxxxxxxx


I get this when starting domU on last nights unstable.  The domU boot seems to
have finished, and I was logging in over the xm console.  Shortly (seconds)
after logging in, I got the oops.

Oops: 0000 [#1]
PREEMPT
Modules linked in: thermal processor fan button battery ac sworks_agp agpgart
CPU:    0
EIP:    0061:[<c03c7a27>]    Not tainted VLI
EFLAGS: 00010297   (2.6.11.12-xen0)
EIP is at skb_release_data+0x47/0xb0
eax: c8d4e100   ebx: 00000000   ecx: c8d4e100   edx: 00000a3c
esi: cc2f6c80   edi: 00000000   ebp: c9a08c00   esp: c9859dac
ds: 007b   es: 007b   ss: 0069
Process sshd (pid: 10901, threadinfo=c9858000 task=c4e30a00)
Stack: 00000030 cc2f6c80 cc2f6c80 c03c7aa0 cc2f6c80 cc2f6c80 ca1fba80 c03c7b43
       cc2f6c80 35846632 cc2f6c80 00000000 35846632 c03ee2b5 cc2f6c80 00000000
       c9859eb0 00000030 0000001d 00020001 c9a08c44 c9858000 00000001 00000000
Call Trace:
 [<c03c7aa0>] kfree_skbmem+0x10/0x30
 [<c03c7b43>] __kfree_skb+0x83/0x120
 [<c03ee2b5>] tcp_recvmsg+0x575/0x720
 [<c03c7552>] sock_common_recvmsg+0x52/0x70
 [<c03c3a30>] sock_aio_read+0x100/0x120
 [<c024aa71>] tty_ldisc_ref_wait+0x11/0xc0
 [<c0119a6a>] __wake_up+0x4a/0xb0
 [<c01419fd>] free_hot_cold_page+0x5d/0x1b0
 [<c01609d9>] do_sync_read+0xc9/0x110
 [<c0175adc>] do_select+0x2ec/0x310
 [<c0175620>] __pollwait+0x0/0xd0
 [<c0135150>] autoremove_wake_function+0x0/0x60
 [<c0160b58>] vfs_read+0x138/0x140
 [<c0160e01>] sys_read+0x51/0x80
 [<c0109e63>] syscall_call+0x7/0xb Code: 74 63 8b 8e a8 00 00 00 8b 51 04 89 c8
85 d2 74 3b 31 db 39 d3 72 10 eb 33 8b 8e a8 00 00 00 43 89 c8 3b 59 04 73 25 8b
54 d8 10 <8b> 02 f6 c4 08 75 ed 8b 42 04 40 74 4b 83 42 04 ff 0f 98 c0 84



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