Bug#504805: linux-image-2.6.26-1-xen-686: panic: iret exception
Package: linux-image-2.6.26-1-xen-686
Version: 2.6.26-9
Severity: important
Hi,
Since switching to the Lenny xen kernel in dom0, I experienced several
crashes under xen-hypervisor-3.2-1-i386, version 3.2.1-2.
I guess I should bring this up with upstream, but there's no such
thing in this case as far as I know. If there's a better forum for
this report, please let me know.
Oct 28 01:40 (sorry for the improper serial support of Xen):
[353002.736250] iret exception: 0000 [#1] SMP
[353002.736250] Modules linked in: video output ac battery bridge 8021q bonding ip6t_REJECT ip6t_LOG nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 ipt_recent ipt_REJECT nf_conntrack_ipv4 xt_state nf_conntrack xt_tcpudp ipt_LOG xt_limit xt_multiport iptable_filter ip_tables x_tables ext2 mbcache dm_round_robin dm_emc dm_multipath loop evdev psmouse serio_raw shpchp pci_hotplug pcspkr i2c_piix4 i2c_core button sworks_agp agpgart dcdbas xfs dm_mirror dm_log dm_snapshot dm_mod raid1 md_mod sg ide_cd_mod cdrom sd_mod ata_generic libata dock aic7xxx scsi_transport_spi tg3 floppy qla2xxx firmware_class scsi_transport_fc scsi_tgt scsi_mod ohci_hcd usbcore serverworks ide_pci_generic ide_core thermal processor fan thermal_sys
[353002.738157]
[353002.738157] Pid: 0, comm: swapper Not tainted (2.6.26-1-xen-686 #1)
[353002.738157] EIP: 0061:[<c0233c2b>] EFLAGS: 00000002 CPU: 0
[353002.738157] EIP is at serial_in+0x5f/0x65
[353002.738157] EAX: c0414264 EBX: 000003f8 ECX: 00000000 EDX: 000003f8
[353002.738157] ESI: c0414320 EDI: cfe8dc00 EBP: 00000069 ESP: c0387ec8
[353002.738157] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0069
[353002.738157] Process swapper (pid: 0, ti=c0386000 task=c03591a0 task.ti=c0386000)
[353002.738157] Stack: cdcbe401 c0414320 c0235766 c0387f08 cfe8dc00 000000ff 00000001 69006e6e
[353002.738157] c0414320 c0413340 c04143dc 00000000 c0236418 00000004 00000000 00000000
[353002.738157] 00000001 ce30e1e0 00000000 00000000 00000004 c0149885 c03773a0 00000004
[353002.738157] Call Trace:
[353002.738157] [<c0235766>] receive_chars+0x28/0x228
[353002.738157] [<c0236418>] serial8250_interrupt+0x66/0x120
[353002.738157] [<c0149885>] handle_IRQ_event+0x36/0x6e
[353002.738157] [<c014a999>] handle_level_irq+0x90/0xed
[353002.738157] [<c0105b08>] do_IRQ+0x4d/0x65
[353002.738157] [<c023cfc7>] evtchn_do_upcall+0xfa0x191
[353002.8157] [<c01041>] hypervisor_clback+0x46/0x4e[353002.738157][<c0105f5a>] xesafe_halt+0x9f/b3
[353002.7387] [<c01028ab>xen_idle+0x1b/06
[353002.7381] [<c0102810>]pu_idle+0xa8/0x
[353002.73815 =====================
[3530.738157] Code: 03 eb 27 03 5e0 8b 03 eb 23 83b 02 8b 46 08 70c 8b 00 c1 e8 25 ff 00 00 00b 0f 01 d8 8a 0eb 06 03 5e 04 da ec <0f> b6 5b 5e c3 57 569 ce 53 0f b6 419 89 c3 89 d0 e0
[353002.7157] EIP: [<c02c2b>] serial_inx5f/0x65 SS:ESP069:c0387ec8
[3002.738157] Keel panic - not ncing: Fatal exption in interrt
(XEN) Domain crashed: reboong machine in 5seconds.
Nov 2 03:02 (this is from the hypervisor, the kernel didn't notice)
(XEN) domain_crash_sync called from entry.S (ff188600)
(XEN) Domain 0 (vcpu#2) crashed on cpu#1:
(XEN) ----[ Xen-3.2-1 x86_32p debug=n Not tainted ]----
(XEN) CPU: 1
(XEN) EIP: 0061:[<c01013a7>]
(XEN) EFLAGS: 00000246 CONTEXT: guest
(XEN) eax: 00000000 ebx: 00000001 ecx: 00000000 edx: cfc57f90
(XEN) esi: 00000002 edi: 00000002 ebp: 00000000 esp: cfc57f84
(XEN) cr0: 8005003b cr4: 000006f0 cr3: 00255ca0 cr2: 08078a28
(XEN) ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0069 cs: 0061
(XEN) Guest stack trace from esp=cfc57f84:
(XEN) c0105f5a ffffffff 00000002 3eb93635 0000cd3c 00000000 00000000 ffffffff
(XEN) c01028ab c0102810 00000000 00000000 00000000 00000000 00000000 00000000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 000000d8 00000000
(XEN) 00000000 00000000 00000000 00000000 00000000 00000000 00000000
(XEN) Domain 0 crashed: rebooting machine in 5 seconds.
Nov 6 23:01 (the serial output seems intact now)
[418893.032226] iret exception: 0000 [#1] SMP
[418893.032347] Modules linked in: ebtable_filter ebtables pl2303 usbserial netconsole configfs video output ac battery bridge 8021q bonding ip6t_REJECT ip6t_LOG nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 ipt_recent ipt_REJECT nf_conntrack_ipv4 xt_state nf_conntrack xt_tcpudp ipt_LOG xt_limit xt_multiport iptable_filter ip_tables x_tables ext2 mbcache dm_emc dm_round_robin dm_multipath loop evdev shpchp psmouse pci_hotplug serio_raw pcspkr button i2c_piix4 i2c_core sworks_agp agpgart dcdbas xfs dm_mirror dm_log dm_snapshot dm_mod raid1 md_mod ide_cd_mod cdrom sg sd_mod ata_generic libata dock qla2xxx firmware_class scsi_transport_fc floppy ohci_hcd scsi_tgt usbcore aic7xxx scsi_transport_spi scsi_mod tg3 serverworks ide_pci_generic ide_core thermal processor fan thermal_sys
[418893.034535]
[418893.034535] Pid: 0, comm: swapper Not tainted (2.6.26-1-xen-686 #1)
[418893.034535] EIP: 0061:[<c0101427>] EFLAGS: 00000086 CPU: 0
[418893.034535] EIP is at 0xc0101427
[418893.034535] EAX: 00000000 EBX: 0000000c ECX: c0387f1c EDX: f5656000
[418893.034535] ESI: 0000001e EDI: ce162300 EBP: c0377d90 ESP: c0387f0c
[418893.034535] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0069
[418893.034535] Process swapper (pid: 0, ti=c0386000 task=c03591a0 task.ti=c0386000)
[418893.034535] Stack: c023c7ac 0000001e 00000000 00000000 0000001e c0377d60 c0377d60 0000001e
[418893.034535] ce162300 c014a9d2 00000b40 c0377d60 00000000 0000001e c0105b08 0000001b
[418893.034535] 00000000 0000001f 00000000 c023cfc7 00000000 00000001 f5656000 f5656000
[418893.034535] Call Trace:
[418893.034535] [<c023c7ac>] startup_pirq+0xe6/0xef
[418893.034535] [<c014a9d2>] handle_level_irq+0xc9/0xed
[418893.034535] [<c0105b08>] do_IRQ+0x4d/0x65
[418893.034535] [<c023cfc7>] evtchn_do_upcall+0xfa/0x191
[418893.034535] [<c0104136>] hypervisor_callback+0x46/0x4e
[418893.034535] [<c0105f5a>] xen_safe_halt+0x9f/0xb3
[418893.034535] [<c01028ab>] xen_idle+0x1b/0x46
[418893.034535] [<c0102810>] cpu_idle+0xa8/0xc0
[418893.034535] =======================
[418893.034535] Code: cc cc cc cc b8 20 00 00 00 cd 82 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc b8 21 00 00 00 cd 82 <c3> cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc
[418893.034535] EIP: [<c0101427>] 0xc0101427 SS:ESP 0069:c0387f0c
[418893.038775] Kernel panic - not syncing: Fatal exception in interrupt
(XEN) Domain 0 crashed: rebooting machine in 5 seconds.
A possible cause for better output is that I stopped using the other
serial port (switched to an USB serial adapter instead). This also got
rid of the otherwise continuous "ttyS0: 8 input overrun(s)" kernel
messages. Unfortunately it didn't stop the crashes...
Regards,
Feri.
-- System Information:
Debian Release: 4.0
APT prefers stable
APT policy: (600, 'stable'), (50, 'unstable')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.26-1-686
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
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