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xen-users
Re: [Xen-users] pv_ops domU crashes on pv_ops dom0 (directly at boot)
Hello,
Jeremy: Is this already known bug/crash?
-- Pasi
On Sat, Dec 05, 2009 at 11:52:06PM +0100, Markus Schuster wrote:
> Hi list,
>
> I'm experiencing some really strange behavior when booting a pv_ops domU more
> recent than kernel 2.6.29 (!) on a pv_ops dom0 (directly from git).
> I'm using XEN 3.4.2 (Debian unstable packages (3.4.2-2) compiled for lenny)
> on
> Debian lenny.
> I've checked out pv_ops dom0 source as described in the wiki - currently I'm
> working with changeset 8735edb4a976105fd29c97c00c6d14760537e4ee.
> domU kernel is a prebuilt kernel image from Debian unstable.
>
> The strange thing: With the same binaries, I can't trigger this problem in my
> test environment (Athlon 64 3500+ socket 939, 2G RAM), only on my production
> server (2x Opteron 2218 (dual core) socket F, 8GB RAM) - maybe it's a SMP
> related problem?
>
> dom0 .config:
> http://markus.schuster.name/bugreport/xen/dom0-config.txt
>
> kernel output of crashing domU
> http://markus.schuster.name/bugreport/xen/domU-2.6.31.txt
> http://markus.schuster.name/bugreport/xen/domU-2.6.32-rc8.txt
>
> kernel output of working domU
> http://markus.schuster.name/bugreport/xen/domU-2.6.29.txt
>
> For those just wanting to have a quick look, here is the relevant kernel
> output from a 2.6.31 domU:
> [..]
> [ 0.012368] Booting paravirtualized kernel on Xen
> [ 0.012368] Xen version: 3.4 (preserve-AD)
> [ 0.012368] Grant table initialized
> [ 0.012368] regulator: core version 0.5
> [ 0.012368] NET: Registered protocol family 16
> [ 0.108050] PCI: Fatal: No config space access function found
> [ 0.108555] bio: create slab <bio-0> at 0
> [ 0.108555] ACPI: Interpreter disabled.
> [ 0.108555] xen_balloon: Initialising balloon driver.
> [ 0.112044] usbcore: registered new interface driver usbfs
> [ 0.112074] usbcore: registered new interface driver hub
> [ 0.112099] usbcore: registered new device driver usb
> [ 0.112099] PCI: System does not support PCI
> [ 0.112099] PCI: System does not support PCI
> [ 0.125982] pnp: PnP ACPI: disabled
> [ 0.126234] NET: Registered protocol family 2
> [ 0.126234] IP route cache hash table entries: 65536 (order: 7, 524288
> bytes)
> [ 0.128563] TCP established hash table entries: 262144 (order: 10, 4194304
> bytes)
> [ 0.130630] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
> [ 0.131149] TCP: Hash tables configured (established 262144 bind 65536)
> [ 0.131164] TCP reno registered
> [ 0.131416] NET: Registered protocol family 1
> [ 0.131510] Unpacking initramfs...
> [ 0.162893] Freeing initrd memory: 21240k freed
> [ 0.176404] platform rtc_cmos: registered platform RTC device (no PNP
> device found)
> [ 0.176433] BUG: unable to handle kernel NULL pointer dereference at (null)
> [ 0.176445] IP: [<ffffffff81386142>] cache_add_dev+0x2e/0x2ae
> [ 0.176461] PGD 0
> [ 0.176468] Oops: 0000 [#1] SMP
> [ 0.176477] last sysfs file:
> [ 0.176484] CPU 0
> [ 0.176490] Modules linked in:
> [ 0.176500] Pid: 1, comm: swapper Tainted: G W 2.6.31-1-amd64 #1
> [ 0.176508] RIP: e030:[<ffffffff81386142>] [<ffffffff81386142>]
> cache_add_dev+0x2e/0x2ae
> [ 0.176522] RSP: e02b:ffff88007ffe5e50 EFLAGS: 00010246
> [ 0.176529] RAX: 0000000000000003 RBX: 0000000000000000 RCX:
> 000000008a54cc73
> [ 0.176537] RDX: 0000000000000000 RSI: 0000000000000000 RDI:
> 0000000000000000
> [ 0.176545] RBP: ffffffff8152df60 R08: 0000000000000200 R09:
> ffffffff8152df60
> [ 0.176553] R10: 0000000000000000 R11: ffffffff81200d1d R12:
> 00000000fffffffe
> [ 0.176561] R13: ffffffff8152dfa0 R14: ffffffff8158af20 R15:
> 0000000000000000
> [ 0.176573] FS: 0000000000000000(0000) GS:ffffc90000000000(0000)
> knlGS:0000000000000000
> [ 0.176583] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 0.176590] CR2: 0000000000000000 CR3: 0000000001001000 CR4:
> 0000000000000660
> [ 0.176599] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
> 0000000000000000
> [ 0.176607] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
> 0000000000000400
> [ 0.176615] Process swapper (pid: 1, threadinfo ffff88007ffe4000, task
> ffff88007ffc6740)
> [ 0.176625] Stack:
> [ 0.176630] 0000000000000002 00000000ffffffea ffffffff8152dfa0
> ffffffff8158af20
> [ 0.176643] <0> 000000008a54cc73 0000000000000000 ffffffff8152df60
> 0000000000000000
> [ 0.176658] <0> ffffffff8152dfa0 ffffffff8158af20 00000000014bd800
> ffffffff81386503
> [ 0.176677] Call Trace:
> [ 0.176687] [<ffffffff81386503>] ? cache_sysfs_init+0x3b/0x86
> [ 0.176699] [<ffffffff81550787>] ? i8237A_init_sysfs+0x0/0x5e
> [ 0.176708] [<ffffffff813864c8>] ? cache_sysfs_init+0x0/0x86
> [ 0.176718] [<ffffffff8100a0a6>] ? do_one_initcall+0x78/0x1a8
> [ 0.176727] [<ffffffff81549a5b>] ? kernel_init+0x178/0x1e5
> [ 0.176738] [<ffffffff81012f2a>] ? child_rip+0xa/0x20
> [ 0.180013] [<ffffffff810120e7>] ? int_ret_from_sys_call+0x7/0x1b
> [ 0.180013] [<ffffffff8101289d>] ? retint_restore_args+0x5/0x6
> [ 0.180013] [<ffffffff81200d1d>] ? dummycon_dummy+0x0/0x2e
> [ 0.180013] [<ffffffff81200d1d>] ? dummycon_dummy+0x0/0x2e
> [ 0.180013] [<ffffffff81012f20>] ? child_rip+0x0/0x20
> [ 0.180013] Code: 89 ff 41 56 41 55 41 54 41 bc fe ff ff ff 55 53 48 83 ec
> 28 65 48 8b 04 25 28 00 00 00 48 89 44 24 20 31 c0 66 8b 05 4e 35 29 00 <44>
> 8b 37 66 85 c0 0f 84 4d 02 00 00 45 89 f5 0f b7 f8 48 c7 c5
> [ 0.180013] RIP [<ffffffff81386142>] cache_add_dev+0x2e/0x2ae
> [ 0.180013] RSP <ffff88007ffe5e50>
> [ 0.180013] CR2: 0000000000000000
> [ 0.180013] ---[ end trace a7919e7f17c0a726 ]---
> [ 0.209859] Kernel panic - not syncing: Attempted to kill init!
> [ 0.209869] Pid: 1, comm: swapper Tainted: G D W 2.6.31-1-amd64 #1
> [ 0.209877] Call Trace:
> [ 0.209886] [<ffffffff8138df3c>] ? panic+0x96/0x14a
> [ 0.209895] [<ffffffff81200d1d>] ? dummycon_dummy+0x0/0x2e
> [ 0.209906] [<ffffffff8100e592>] ? check_events+0x12/0x20
> [ 0.209915] [<ffffffff813908a6>] ? _write_lock_irq+0x1b/0x43
> [ 0.209926] [<ffffffff8106828b>] ? exit_ptrace+0xb7/0x14b
> [ 0.209935] [<ffffffff813908a6>] ? _write_lock_irq+0x1b/0x43
> [ 0.209945] [<ffffffff81060184>] ? do_exit+0x82/0x698
> [ 0.209955] [<ffffffff8105cd81>] ? release_console_sem+0x1a4/0x1ed
> [ 0.209965] [<ffffffff8101685f>] ? oops_end+0xc3/0xdf
> [ 0.209974] [<ffffffff8103bcab>] ? no_context+0x1fc/0x220
> [ 0.209984] [<ffffffff81200d1d>] ? dummycon_dummy+0x0/0x2e
> [ 0.209993] [<ffffffff8103be6f>] ? __bad_area_nosemaphore+0x1a0/0x1dc
> [ 0.210002] [<ffffffff8100e57f>] ? xen_restore_fl_direct_end+0x0/0x1
> [ 0.210012] [<ffffffff8105d46c>] ? vprintk+0x300/0x343
> [ 0.210021] [<ffffffff8100db31>] ? xen_force_evtchn_callback+0x1d/0x37
> [ 0.210031] [<ffffffff8103c16c>] ? do_page_fault+0xae/0x315
> [ 0.210040] [<ffffffff81391095>] ? page_fault+0x25/0x30
> [ 0.210049] [<ffffffff81200d1d>] ? dummycon_dummy+0x0/0x2e
> [ 0.210058] [<ffffffff81386142>] ? cache_add_dev+0x2e/0x2ae
> [ 0.210068] [<ffffffff81386503>] ? cache_sysfs_init+0x3b/0x86
> [ 0.210079] [<ffffffff81550787>] ? i8237A_init_sysfs+0x0/0x5e
> [ 0.210088] [<ffffffff813864c8>] ? cache_sysfs_init+0x0/0x86
> [ 0.210097] [<ffffffff8100a0a6>] ? do_one_initcall+0x78/0x1a8
> [ 0.210107] [<ffffffff81549a5b>] ? kernel_init+0x178/0x1e5
> [ 0.210116] [<ffffffff81012f2a>] ? child_rip+0xa/0x20
> [ 0.210125] [<ffffffff810120e7>] ? int_ret_from_sys_call+0x7/0x1b
> [ 0.210133] [<ffffffff8101289d>] ? retint_restore_args+0x5/0x6
> [ 0.210143] [<ffffffff81200d1d>] ? dummycon_dummy+0x0/0x2e
> [ 0.210152] [<ffffffff81200d1d>] ? dummycon_dummy+0x0/0x2e
> [ 0.210161] [<ffffffff81012f20>] ? child_rip+0x0/0x20
>
> Regards,
> Markus Schuster
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
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