[Debian] Re: Bug#575189: NULL pointer dereference in linux-image-2.6.32-4-openvz-amd64

Thu Apr 1 02:08:58 EDT 2010

forwarded 575189 http://bugzilla.openvz.org/show_bug.cgi?id=1480
thanks

Forwarded to upstream.

// Ola

On Wed, Mar 24, 2010 at 10:05:40AM +0600, Алексей Тамаревский wrote:
> Package: linux-image-2.6.32-4-openvz-amd64
> Version: 2.6.32-10
> 
> After few seconds after boot in openvz contaiter, running verlihub
> with nearby 100 TCP connections, I see in dmesg:
> [ 4538.883509] BUG: unable to handle kernel NULL pointer dereference
> at 0000000000000038
> [ 4538.883563] IP: [<ffffffff81073ab0>] ub_page_charge+0x65/0xa2
> [ 4538.883598] PGD 42b002067 PUD 42afb0067 PMD 0
> [ 4538.883630] Oops: 0000 [#1] SMP
> [ 4538.883656] last sysfs file: /sys/devices/virtual/net/lo/operstate
> [ 4538.883685] CPU 7
> [ 4538.883707] Modules linked in: vzethdev vznetdev simfs vzdquota
> vzmon vzdev xt_comment xt_tcpudp ipt_LOG xt_length xt_hl xt_tcpmss
> xt_TCPMSS iptable_mangle iptable_filter xt_multiport xt_limit xt_dscp
> ipt_REJECT ip_tables x_tables bonding ipmi_si ipmi_devintf
> ipmi_msghandler snd_pcm psmouse i2c_i801 snd_timer container serio_raw
> rng_core i2c_core snd soundcore snd_page_alloc joydev pcspkr evdev
> i5k_amb ioatdma i5000_edac button dca processor edac_core shpchp
> pci_hotplug ext3 jbd mbcache dm_mirror dm_region_hash dm_log
> dm_snapshot dm_mod raid10 raid1 md_mod sg sr_mod cdrom sd_mod
> crc_t10dif usbhid usb_storage hid ata_piix aic94xx libsas ata_generic
> ehci_hcd uhci_hcd scsi_transport_sas libata scsi_mod usbcore nls_base
> e1000e thermal fan thermal_sys [last unloaded: scsi_wait_scan]
> [ 4538.884129] Pid: 3625, comm: verlihub Not tainted
> 2.6.32-4-openvz-amd64 #1 042test001 X7DBR-3
> [ 4538.884180] RIP: 0010:[<ffffffff81073ab0>]  [<ffffffff81073ab0>]
> ub_page_charge+0x65/0xa2
> [ 4538.884233] RSP: 0000:ffff88042b887c58  EFLAGS: 00010246
> [ 4538.884269] RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000000
> [ 4538.884299] RDX: 00000000000012d0 RSI: 0000000000000000 RDI: 0000000000000000
> [ 4538.884329] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
> [ 4538.884358] R10: 0000000000000f5d R11: 0000000000000002 R12: 0000000000000000
> [ 4538.884388] R13: 00000000000012d0 R14: 0000000000000000 R15: 0000000000000002
> [ 4538.884419] FS:  00007fec621566f0(0000) GS:ffff880011bc0000(0000)
> knlGS:0000000000000000
> [ 4538.884465] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 4538.884492] CR2: 0000000000000038 CR3: 000000041842b000 CR4: 00000000000406e0
> [ 4538.884522] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [ 4538.884552] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> [ 4538.884583] Process verlihub (pid: 3625, veid=1233, threadinfo
> ffff88042b886000, task ffff88042a235000)
> [ 4538.884631] Stack:
> [ 4538.884651]  0000000000000001 0000000000000000 0000000000000000
> ffffffff810bbe19
> [ 4538.884688] <0> ffff880000023c80 0000000000000000 ffff88042a235000
> ffff88042b887fd8
> [ 4538.884739] <0> 0000001000000000 0000000000000050 0000100000000000
> 0000000000001080
> [ 4538.884807] Call Trace:
> [ 4538.884832]  [<ffffffff810bbe19>] ? __alloc_pages_nodemask+0x62e/0x6ad
> [ 4538.884864]  [<ffffffff810e9247>] ? new_slab+0x4b/0x228
> [ 4538.884891]  [<ffffffff810e95f0>] ? __slab_alloc+0x1cc/0x388
> [ 4538.884920]  [<ffffffff81077bf5>] ? pb_alloc+0x15/0x3a
> [ 4538.884947]  [<ffffffff81077bf5>] ? pb_alloc+0x15/0x3a
> [ 4538.884973]  [<ffffffff810e9989>] ? kmem_cache_alloc+0x7f/0x138
> [ 4538.885002]  [<ffffffff81077bf5>] ? pb_alloc+0x15/0x3a
> [ 4538.885030]  [<ffffffff810ce6d8>] ? handle_mm_fault+0x269/0x952
> [ 4538.885060]  [<ffffffff8105eeac>] ? virtinfo_notifier_call+0x57/0xa1
> [ 4538.885089]  [<ffffffff810d3bfe>] ? __do_brk+0x253/0x35a
> [ 4538.885118]  [<ffffffff810327fc>] ? do_page_fault+0x266/0x282
> [ 4538.885149]  [<ffffffff812e7845>] ? page_fault+0x25/0x30
> [ 4538.885175] Code: fa 66 0f 1f 44 00 00 be 00 10 00 00 c1 ea 16 48
> 89 ef 83 e2 01 48 d3 e6 e8 23 ff ff ff 85 c0 75 1f 48 89 df 57 9d 0f
> 1f 44 00 00 <49> 83 7c 24 38 00 74 04 0f 0b eb fe 49 89 6c 24 38 31 c0
> eb 23
> [ 4538.885365] RIP  [<ffffffff81073ab0>] ub_page_charge+0x65/0xa2
> [ 4538.885395]  RSP <ffff88042b887c58>
> [ 4538.885418] CR2: 0000000000000038
> [ 4538.885670] ---[ end trace 5b3ccb8b85dfed82 ]---
> 
> 
> I am using Lenny system, only 2 packages from Sid:
> toothy:~# dpkg -l|grep linux-
> ii  linux-base                                 2.6.32-10
>  Linux image base package
> ii  linux-image-2.6.32-4-openvz-amd64          2.6.32-10
>  Linux 2.6.32 for 64-bit PCs, OpenVZ support
> 
> 
> 
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> 

-- 
 --------------------- Ola Lundqvist ---------------------------
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