Bug#607709: XEN kernel crash (this time with a shorter trace)

2011-01-10 Thread Giuseppe Sacco
Il giorno mar, 04/01/2011 alle 13.53 +, Ian Campbell ha scritto:
 On Tue, 2011-01-04 at 14:48 +0100, Giuseppe Sacco wrote:
[...]
 Thanks. Unfortunately there doesn't seem to be anything of interest in
 the xm dmesg output. It's possible that you need to add loglvl=all
 guest_loglvl=all to the hypervisor command line in order to get the
 messages. Are you able to try that?

Here it is.

Bye,
Giuseppe


bug#607709.tar.bz2
Description: application/bzip-compressed-tar


Bug#607709: XEN kernel crash (this time with a shorter trace)

2011-01-04 Thread Ian Campbell
On Thu, 2010-12-30 at 16:02 +0100, Giuseppe Sacco wrote:
 A new crash on that machine, after upgrading kernel, is shown here:
 
 Dec 29 22:21:28 atf-124 kernel: [49041.588528] [ cut here 
 ]
 Dec 29 22:21:28 atf-124 kernel: [49041.591269] kernel BUG at 
 /build/buildd-linux-2.6_2.6.32-29-i386-Of6Yt1/linux-2.6-2.6
 .32/debian/build/source_i386_xen/arch/x86/xen/enlighten.c:309!

This seems to be this BUG():

static void set_aliased_prot(void *v, pgprot_t prot)
{
   [...]

if (HYPERVISOR_update_va_mapping((unsigned long)v, pte, 0))
BUG();

I would expect some log on the hypervisor console (xm dmesg) which
corresponds with this hypercall failure, which would be very useful to
see..

Ian.

-- 
Ian Campbell
Current Noise: Soilwork - Distortion Sleep

You need tender loving care once a week - so that I can slap you into shape.
-- Ellyn Mustard




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Bug#607709: XEN kernel crash (this time with a shorter trace)

2011-01-04 Thread Giuseppe Sacco
Hi Ian,
thanks for working on this report.

Il giorno mar, 04/01/2011 alle 11.53 +, Ian Campbell ha scritto:
 On Thu, 2010-12-30 at 16:02 +0100, Giuseppe Sacco wrote:
  A new crash on that machine, after upgrading kernel, is shown here:
  
  Dec 29 22:21:28 atf-124 kernel: [49041.588528] [ cut here 
  ]
  Dec 29 22:21:28 atf-124 kernel: [49041.591269] kernel BUG at 
  /build/buildd-linux-2.6_2.6.32-29-i386-Of6Yt1/linux-2.6-2.6
  .32/debian/build/source_i386_xen/arch/x86/xen/enlighten.c:309!
 
 This seems to be this BUG():
 
 static void set_aliased_prot(void *v, pgprot_t prot)
 {
[...]
 
 if (HYPERVISOR_update_va_mapping((unsigned long)v, pte, 0))
 BUG();
 
 I would expect some log on the hypervisor console (xm dmesg) which
 corresponds with this hypercall failure, which would be very useful to
 see..

Currently I cannot access that machine because of public holidays. The
problem about this request is that during last test the machine crashed
and automatically rebooted. We will try again one ot these days,
hopefully before tomorrow.

Bye,
Giuseppe




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Bug#607709: XEN kernel crash (this time with a shorter trace)

2011-01-04 Thread Giuseppe Sacco
Hi Ian,

Il giorno mar, 04/01/2011 alle 11.53 +, Ian Campbell ha scritto:
 On Thu, 2010-12-30 at 16:02 +0100, Giuseppe Sacco wrote:
[...]
 I would expect some log on the hypervisor console (xm dmesg) which
 corresponds with this hypercall failure, which would be very useful to
 see..

I just received the attached log for yesterday crash. It includes output
from dmesg and from xm dmesg.

Bye,
Giuseppe


bug#607709.tbz
Description: application/bzip-compressed-tar


Bug#607709: XEN kernel crash (this time with a shorter trace)

2011-01-04 Thread Ian Campbell
On Tue, 2011-01-04 at 14:48 +0100, Giuseppe Sacco wrote:
 Hi Ian,
 
 Il giorno mar, 04/01/2011 alle 11.53 +, Ian Campbell ha scritto:
  On Thu, 2010-12-30 at 16:02 +0100, Giuseppe Sacco wrote:
 [...]
  I would expect some log on the hypervisor console (xm dmesg) which
  corresponds with this hypercall failure, which would be very useful to
  see..
 
 I just received the attached log for yesterday crash. It includes output
 from dmesg and from xm dmesg.

Thanks. Unfortunately there doesn't seem to be anything of interest in
the xm dmesg output. It's possible that you need to add loglvl=all
guest_loglvl=all to the hypervisor command line in order to get the
messages. Are you able to try that?

Ian.

-- 
Ian Campbell
Current Noise: The Hidden Hand - Black Ribbon

More software projects have gone awry for lack of calendar time than for all
 other causes combined.
-- Fred Brooks, Jr., _The Mythical Man Month_




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Bug#607709: XEN kernel crash (this time with a shorter trace)

2010-12-30 Thread Giuseppe Sacco
A new crash on that machine, after upgrading kernel, is shown here:

Dec 29 22:21:28 atf-124 kernel: [49041.588528] [ cut here 
]
Dec 29 22:21:28 atf-124 kernel: [49041.591269] kernel BUG at 
/build/buildd-linux-2.6_2.6.32-29-i386-Of6Yt1/linux-2.6-2.6
.32/debian/build/source_i386_xen/arch/x86/xen/enlighten.c:309!
Dec 29 22:21:28 atf-124 kernel: [49041.592505] invalid opcode:  [#1] SMP
Dec 29 22:21:28 atf-124 kernel: [49041.592505] last sysfs file: 
/sys/hypervisor/version/minor
Dec 29 22:21:28 atf-124 kernel: [49041.592505] Modules linked in: bridge stp 
xen_evtchn xenfs vboxnetadp vboxnetflt vboxdrv lp parport psmouse shpchp 
i5100_edac button edac_core pci_hotplug serio_raw evdev dcdbas processor 
acpi_processor ext3 jbd mbcache sd_mod crc_t10dif sg osst sr_mod dm_mod cdrom 
st usbhid hid ata_generic mptspi mptsas scsi_transport_spimptscsih ata_piix 
mptbase libata scsi_transport_sas tg3 scsi_mod ehci_hcd uhci_hcd libphy usbcore 
nls_base thermal thermal_sys radeonfb fb_ddc i2c_algo_bit i2c_core
Dec 29 22:21:28 atf-124 kernel: [49041.614238]
Dec 29 22:21:28 atf-124 kernel: [49041.614238] Pid: 17208, comm: 
python2.3 Not tainted (2.6.32-5-xen-686 #1) PowerEdge T300
Dec 29 22:21:28 atf-124 kernel: [49041.614238] EIP: 0061:[c1003b51] EFLAGS: 
00210282 CPU: 1
Dec 29 22:21:28 atf-124 kernel: [49041.614238] EIP is at 
set_aliased_prot+0x9e/0x10d
Dec 29 22:21:28 atf-124 kernel: [49041.614238] EAX: ffea EBX: f8c2b000 ECX: 
70567063 EDX: 8001
Dec 29 22:21:28 atf-124 kernel: [49041.614238] ESI:  EDI: 8000 EBP: 
00039e3b ESP: f5a3df08
Dec 29 22:21:28 atf-124 kernel: [49041.614238]  DS: 007b ES: 007b FS: 00d8 GS: 
00e0 SS: 0069
Dec 29 22:21:28 atf-124 kernel: [49041.614238] Process python2.3 (pid: 17208, 
ti=f5a3c000 task=f492ea40 task.ti=f5a3c000)
Dec 29 22:21:28 atf-124 kernel: [49041.614238] Stack:
Dec 29 22:21:28 atf-124 kernel: [49041.614238]  8001 70567063 0163 
f8c2b000 c2e56000 0001 0200 f8c2b000
Dec 29 22:21:28 atf-124 kernel: [49041.614238] 0 2000 f24978b4 c1003be2 
f2497880 f492ea40 f2497880 c100b2ab f2497880
Dec 29 22:21:28 atf-124 kernel: [49041.614238] 0 f2497880 c103564a  
c1038a8e f5aa98c0 c128e818 f5aa98c0 f492ea40
Dec 29 22:21:28 atf-124 kernel: [49041.614238] Call Trace:
Dec 29 22:21:28 atf-124 kernel: [49041.614238]  [c1003be2] ? 
xen_free_ldt+0x22/0x30
Dec 29 22:21:28 atf-124 kernel: [49041.614238]  [c100b2ab] ? 
destroy_context+0x38/0x79
Dec 29 22:21:28 atf-124 kernel: [49041.614238]  [c103564a] ? 
__mmdrop+0x1d/0x3a
Dec 29 22:21:28 atf-124 kernel: [49041.614238]  [c1038a8e] ? exit_mm+0xd5/0xdc
Dec 29 22:21:28 atf-124 kernel: [49041.614238]  [c128e818] ? 
_spin_lock_irq+0xb/0x21
Dec 29 22:21:28 atf-124 kernel: [49041.614238]  [c103a237] ? 
do_exit+0x1a3/0x5cd
Dec 29 22:21:28 atf-124 kernel: [49041.614238]  [c1290598] ? 
do_page_fault+0x2f1/0x307
Dec 29 22:21:28 atf-124 kernel: [49041.614238]  [c103a6c0] ? 
do_group_exit+0x5f/0x82
Dec 29 22:21:28 atf-124 kernel: [49041.614238]  [c103a6f4] ? 
sys_exit_group+0x11/0x14
Dec 29 22:21:28 atf-124 kernel: [49041.614238]  [c1008ebb] ? 
sysenter_do_call+0x12/0x28
Dec 29 22:21:28 atf-124 kernel: [49041.614238] Code: ea 0c c1 e0 0c 09 d1 09 c3 
89 ca 89 d8 ff 15 8c fe 3c c1 31 f6 89 c1 8b 5c 24 0c 89 44 24 04 89 14 24 e8 
73 e6 ff ff 85 c0 74 04 0f 0b eb fe 8b 54 24 10 89 e8 c1 e0 05 8b 04 10 c1 e8 
1e  69 c0
Dec 29 22:21:28 atf-124 kernel: [49041.614238] EIP: [c1003b51] 
set_aliased_prot+0x9e/0x10d SS:ESP 0069:f5a3df08
Dec 29 22:21:28 atf-124 kernel: [49041.715932] ---[ end trace 0969558a522287f2 
]---
Dec 29 22:21:28 atf-124 kernel: [49041.716511] Fixing recursive fault but 
reboot is needed!

Bye,
Giuseppe




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