[Xen-bugs] [Bug 1389] New: Nonfatal kernel exceptions in dom0

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1389

           Summary: Nonfatal kernel exceptions in dom0
           Product: Xen
           Version: unspecified
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Hypervisor
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: richw@xxxxxxxxx


Xen 3.3 / Ubuntu 8.04.1, kernel 2.6.24-21-xen.

A new, otherwise stable system produced the following errors in the syslog. 
The dom0 and all domU's continued to run (no crashes/reboots).

I assume the errors occured in the dom0 (called "sixeyes"); note the references
to "xend" and "ntpd" (which are running in the dom0, but not in the domU's).

Nov 21 20:43:30 sixeyes kernel: [161600.365134] 
Nov 21 20:43:30 sixeyes kernel: [161600.365141] Pid: 0, comm: swapper Not
tainted (2.6.24-21-xen #1)
Nov 21 20:43:30 sixeyes kernel: [161600.365149] EIP:
0061:[hypercall_page+0x3a7/0x1000] EFLAGS: 00000246 CPU: 0
Nov 21 20:43:31 sixeyes kernel: [161600.365178] EIP is at 0xc01013a7
Nov 21 20:43:31 sixeyes kernel: [161600.365183] EAX: 00000000 EBX: 00000001
ECX: 00000000 EDX: 00000001
Nov 21 20:43:31 sixeyes kernel: [161600.365190] ESI: 00000000 EDI: 00000000
EBP: c0462e00 ESP: c042bf90
Nov 21 20:43:31 sixeyes kernel: [161600.365197]  DS: 007b ES: 007b FS: 00d8 GS:
0000 SS: 0069
Nov 21 20:43:31 sixeyes kernel: [161600.365211] CR0: 8005003b CR2: b3667000
CR3: 1472a000 CR4: 00000660
Nov 21 20:43:31 sixeyes kernel: [161600.365220] DR0: 00000000 DR1: 00000000
DR2: 00000000 DR3: 00000000
Nov 21 20:43:31 sixeyes kernel: [161600.365227] DR6: ffff0ff0 DR7: 00000400
Nov 21 20:43:31 sixeyes kernel: [161600.365234] 
[processor:xen_safe_halt+0xa8/0x3810] xen_safe_halt+0xa8/0xf0
Nov 21 20:43:31 sixeyes kernel: [161600.365267]  [xen_idle+0x30/0x60]
xen_idle+0x30/0x60
Nov 21 20:43:31 sixeyes kernel: [161600.365276]  [cpu_idle+0x71/0xc0]
cpu_idle+0x71/0xc0
Nov 21 20:43:31 sixeyes kernel: [161600.365288]  [start_kernel+0x31a/0x3c0]
start_kernel+0x31a/0x3c0
Nov 21 20:43:31 sixeyes kernel: [161600.365308]  [unknown_bootoption+0x0/0x1e0]
unknown_bootoption+0x0/0x1e0
Nov 21 20:43:31 sixeyes kernel: [161600.365326]  =======================
Nov 21 20:43:31 sixeyes kernel: [161608.002847] 
Nov 21 20:43:31 sixeyes kernel: [161608.002859] Pid: 4778, comm: xend Not
tainted (2.6.24-21-xen #1)
Nov 21 20:43:31 sixeyes kernel: [161608.002866] EIP:
0061:[vfs_ioctl+0x60/0x2b0] EFLAGS: 00200246 CPU: 0
Nov 21 20:43:31 sixeyes kernel: [161608.002886] EIP is at vfs_ioctl+0x60/0x2b0
Nov 21 20:43:31 sixeyes kernel: [161608.002892] EAX: 00008000 EBX: 00000000
ECX: dc60548c EDX: 00305000
Nov 21 20:43:31 sixeyes kernel: [161608.002899] ESI: db5f2940 EDI: 00000010
EBP: dc8a6000 ESP: dc8a7f88
Nov 21 20:43:31 sixeyes kernel: [161608.002906]  DS: 007b ES: 007b FS: 00d8 GS:
0033 SS: 0069
Nov 21 20:43:31 sixeyes kernel: [161608.002921] CR0: 80050033 CR2: b3667000
CR3: 1a8ab000 CR4: 00000660
Nov 21 20:43:31 sixeyes kernel: [161608.002931] DR0: 00000000 DR1: 00000000
DR2: 00000000 DR3: 00000000
Nov 21 20:43:31 sixeyes kernel: [161608.002938] DR6: ffff0ff0 DR7: 00000400
Nov 21 20:43:31 sixeyes kernel: [161608.002975]  [sys_ioctl+0x56/0x70]
sys_ioctl+0x56/0x70
Nov 21 20:43:31 sixeyes kernel: [161608.002988]  [syscall_call+0x7/0x0b]
syscall_call+0x7/0xb
Nov 21 20:43:31 sixeyes kernel: [161608.003014]  =======================
Nov 21 20:43:31 sixeyes kernel: [161624.722975] 
Nov 21 20:43:31 sixeyes kernel: [161624.722983] Pid: 5191, comm: ntpd Not
tainted (2.6.24-21-xen #1)
Nov 21 20:43:31 sixeyes kernel: [161624.722991] EIP:
0061:[ipv6:udp_sendmsg+0x6/0xb10] EFLAGS: 00200282 CPU: 0
Nov 21 20:43:31 sixeyes kernel: [161624.723019] EIP is at udp_sendmsg+0x6/0x740
Nov 21 20:43:31 sixeyes kernel: [161624.723025] EAX: dbcf9ddc EBX: c0411a80
ECX: dbcf9f38 EDX: daab2040
Nov 21 20:43:31 sixeyes kernel: [161624.723032] ESI: daab2040 EDI: dbcf9f38
EBP: dbcf9ddc ESP: dbcf9d20
Nov 21 20:43:31 sixeyes kernel: [161624.723039]  DS: 007b ES: 007b FS: 00d8 GS:
0033 SS: 0069
Nov 21 20:43:31 sixeyes kernel: [161624.723052] CR0: 80050033 CR2: b3667000
CR3: 1c82a000 CR4: 00000660
Nov 21 20:43:31 sixeyes kernel: [161624.723061] DR0: 00000000 DR1: 00000000
DR2: 00000000 DR3: 00000000
Nov 21 20:43:31 sixeyes kernel: [161624.723068] DR6: ffff0ff0 DR7: 00000400
Nov 21 20:43:31 sixeyes kernel: [161624.723126]  [ipv6:inet_sendmsg+0x37/0x120]
inet_sendmsg+0x37/0x70
Nov 21 20:43:31 sixeyes kernel: [161624.723146]  [sock_sendmsg+0x111/0x130]
sock_sendmsg+0x111/0x130
Nov 21 20:43:31 sixeyes kernel: [161624.723185]  [<c013ba70>]
autoremove_wake_function+0x0/0x40
Nov 21 20:43:31 sixeyes kernel: [161624.723219] 
[convert_fxsr_to_user+0xe5/0x190] convert_fxsr_to_user+0xe5/0x190
Nov 21 20:43:31 sixeyes kernel: [161624.723262] 
[ip_tables:copy_from_user+0x2e/0x280] copy_from_user+0x2e/0x70
Nov 21 20:43:31 sixeyes kernel: [161624.723285]  [sys_sendto+0x128/0x180]
sys_sendto+0x128/0x180
Nov 21 20:43:31 sixeyes kernel: [161624.723304]  [recalc_sigpending+0xb/0x40]
recalc_sigpending+0xb/0x40
Nov 21 20:43:31 sixeyes kernel: [161624.723329]  [local_clock+0x55/0xa0]
local_clock+0x55/0xa0
Nov 21 20:43:31 sixeyes kernel: [161624.723346] 
[xen_clocksource_read+0x11/0x140] xen_clocksource_read+0x11/0x140
Nov 21 20:43:31 sixeyes kernel: [161624.723356] 
[restore_sigcontext+0x1b8/0x1c0] restore_sigcontext+0x1b8/0x1c0
Nov 21 20:43:31 sixeyes kernel: [161624.723380]  [sys_socketcall+0x183/0x2b0]
sys_socketcall+0x183/0x2b0
Nov 21 20:43:31 sixeyes kernel: [161624.723404]  [syscall_call+0x7/0x0b]
syscall_call+0x7/0xb
Nov 21 20:43:31 sixeyes kernel: [161624.723427]  =======================


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