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Old 02-15-2011, 08:05 AM
Moritz Augsburger
 
Default Bug#613501: linux-image-2.6.32-5-openvz-amd64: Starting vserver on ext4 FS triggers NULL pointer dereference

Package: linux-2.6
Version: 2.6.32-30
Severity: critical
Justification: breaks unrelated software


Starting a vserver with it's root on ext4 crashes ext4, event with
/var/lib/vz on a different partition the root system gets unstable to
unusable. I had hanging dpkgs when trying to extract files and the
system wasn't rebootable because of the hanging guest, only
`echo b > /proc/sysrq-trigger` worked.

-- Package-specific info:
** Version:
Linux version 2.6.32-5-openvz-amd64 (Debian 2.6.32-30) (ben@decadent.org.uk) (gcc version 4.3.5 (Debian 4.3.5-4) ) #1 SMP Wed Jan 12 04:22:50 UTC 2011

** Command line:
BOOT_IMAGE=/vmlinuz-2.6.32-5-openvz-amd64 root=/dev/mapper/md1_raid1-slash ro quiet

** Not tainted

** Kernel log:
[ 4.446986] Adding 1958888k swap on /dev/md2. Priority:-1 extents:1 across:1958888k
[ 4.684915] loop: module loaded
[ 5.560146] EXT4-fs (dm-1): mounted filesystem with ordered data mode
[ 5.573549] EXT4-fs (dm-2): mounted filesystem with ordered data mode
[ 5.600715] EXT4-fs (dm-3): mounted filesystem with ordered data mode
[ 6.877728] e100 0000:02:07.0: firmware: requesting e100/d101m_ucode.bin
[ 6.908797] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 6.912564] e100: eth0 NIC Link is Up 100 Mbps Full Duplex
[ 6.920839] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 7.184696] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 8.318464] warning: `vzctl' uses 32-bit capabilities (legacy support in use)
[ 8.340313] CT: 202: started
[ 8.657570] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 8.657794] IP: [<(null)>] (null)
[ 8.657929] PGD 11a4d6067 PUD 11a487067 PMD 0
[ 8.658164] Oops: 0010 [#1] SMP
[ 8.658346] last sysfs file: /sys/devices/virtual/net/lo/operstate
[ 8.658442] CPU 1
[ 8.658571] Modules linked in: vzethdev vznetdev simfs vzrst vzcpt vzdquota vzmon vzdev xt_tcpudp xt_length xt_hl xt_tcpmss xt_TCPMSS iptable_mangle iptable_filter xt_multiport xt_limit xt_dscp ipt_REJECT ip_tables x_tables vzevent ext2 loop snd_pcm ata_generic snd_timer e100 ohci_hcd ehci_hcd snd soundcore r8169 snd_page_alloc usbcore nls_base mii i2c_piix4 pata_atiixp i2c_core edac_core button edac_mce_amd evdev pcspkr processor ext4 mbcache jbd2 crc16 dm_mod raid1 md_mod sd_mod crc_t10dif ahci libata scsi_mod thermal thermal_sys
[ 8.661473] Pid: 1747, comm: cp Not tainted 2.6.32-5-openvz-amd64 #1 dzhanibekov GA-880GM-UD2H
[ 8.661473] RIP: 0010:[<0000000000000000>] [<(null)>] (null)
[ 8.661473] RSP: 0018:ffff88011dd37a20 EFLAGS: 00010246
[ 8.661473] RAX: ffffffffa0233880 RBX: ffff880118c3c0c0 RCX: 000000000000000c
[ 8.661473] RDX: 0000000000000000 RSI: 0000000000002000 RDI: ffff880118c3c0c0
[ 8.661473] RBP: ffff88011962d2a0 R08: 0000000000000000 R09: ffff880118c3c000
[ 8.661473] R10: ffffffff810bc685 R11: ffff88011da2e800 R12: ffff880118c3c000
[ 8.661473] R13: 0000000000000002 R14: 0000000000000000 R15: ffff880118c3c3c8
[ 8.661473] FS: 00007f9b774947a0(0000) GS:ffff880005a40000(0000) knlGS:0000000000000000
[ 8.661473] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 8.661473] CR2: 0000000000000000 CR3: 000000011dd34000 CR4: 00000000000006e0
[ 8.661473] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 8.661473] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 8.661473] Process cp (pid: 1747, veid=202, threadinfo ffff88011dd36000, task ffff88011a61a000)
[ 8.661473] Stack:
[ 8.661473] ffffffffa00e44ca ffff88011962d2a0 0000000000000000 0000004000000000
[ 8.661473] <0> fffffffffffffff3 fffffffffffffff4 0000000000000000 ffffffffffff0000
[ 8.661473] <0> 0000000000000001 ffff88011da2e000 0000000000000000 0000000004628440
[ 8.661473] Call Trace:
[ 8.661473] [<ffffffffa00e44ca>] ? ext4_da_get_block_prep+0x20c/0x318 [ext4]
[ 8.661473] [<ffffffff81111cb8>] ? __block_prepare_write+0x14c/0x2c0
[ 8.661473] [<ffffffffa00e42be>] ? ext4_da_get_block_prep+0x0/0x318 [ext4]
[ 8.661473] [<ffffffff810b6e49>] ? add_to_page_cache_locked+0x76/0xc1
[ 8.661473] [<ffffffff81111f87>] ? block_write_begin+0x7a/0xc7
[ 8.661473] [<ffffffffa00e71e8>] ? ext4_da_write_begin+0x1b9/0x272 [ext4]
[ 8.661473] [<ffffffffa00e42be>] ? ext4_da_get_block_prep+0x0/0x318 [ext4]
[ 8.661473] [<ffffffff810b77be>] ? generic_file_buffered_write+0x118/0x278
[ 8.661473] [<ffffffff810b7ccf>] ? __generic_file_aio_write+0x25f/0x293
[ 8.661473] [<ffffffff81077eb8>] ? inc_held_pages+0x3b/0x4f
[ 8.661473] [<ffffffff810b7d5c>] ? generic_file_aio_write+0x59/0x9f
[ 8.661473] [<ffffffff810f0d2a>] ? do_sync_write+0xce/0x113
[ 8.661473] [<ffffffff8106681a>] ? autoremove_wake_function+0x0/0x2e
[ 8.661473] [<ffffffff810f172a>] ? vfs_write+0xa9/0x102
[ 8.661473] [<ffffffff810f1896>] ? sys_write+0x49/0xc1
[ 8.661473] [<ffffffff81010c12>] ? system_call_fastpath+0x16/0x1b
[ 8.661473] Code: Bad RIP value.
[ 8.661473] RIP [<(null)>] (null)
[ 8.661473] RSP <ffff88011dd37a20>
[ 8.661473] CR2: 0000000000000000
[ 8.666743] ---[ end trace bdec971a95bc5f99 ]---
[ 8.669893] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 8.670112] IP: [<(null)>] (null)
[ 8.670247] PGD 11dc5d067 PUD 11a4e4067 PMD 0
[ 8.670482] Oops: 0010 [#2] SMP
[ 8.670664] last sysfs file: /sys/devices/virtual/net/lo/operstate
[ 8.670759] CPU 0
[ 8.670889] Modules linked in: vzethdev vznetdev simfs vzrst vzcpt vzdquota vzmon vzdev xt_tcpudp xt_length xt_hl xt_tcpmss xt_TCPMSS iptable_mangle iptable_filter xt_multiport xt_limit xt_dscp ipt_REJECT ip_tables x_tables vzevent ext2 loop snd_pcm ata_generic snd_timer e100 ohci_hcd ehci_hcd snd soundcore r8169 snd_page_alloc usbcore nls_base mii i2c_piix4 pata_atiixp i2c_core edac_core button edac_mce_amd evdev pcspkr processor ext4 mbcache jbd2 crc16 dm_mod raid1 md_mod sd_mod crc_t10dif ahci libata scsi_mod thermal thermal_sys
[ 8.673754] Pid: 1737, comm: vzctl Tainted: G D 2.6.32-5-openvz-amd64 #1 dzhanibekov GA-880GM-UD2H
[ 8.673754] RIP: 0010:[<0000000000000000>] [<(null)>] (null)
[ 8.673754] RSP: 0018:ffff88011dd15d30 EFLAGS: 00010246
[ 8.673754] RAX: ffffffffa0233880 RBX: 0000000000000002 RCX: 000000000000000c
[ 8.673754] RDX: ffff88011da2e800 RSI: 0000000000002000 RDI: ffff88011a8bacc0
[ 8.673754] RBP: ffff88011a8bac00 R08: 0000000000000003 R09: ffff88011a8b7cc0
[ 8.673754] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88011a8bacc0
[ 8.673754] R13: ffffea00046b2c80 R14: ffff88011da2e000 R15: 0000000000000000
[ 8.673754] FS: 00007f5e4504f700(0000) GS:ffff880005a00000(0000) knlGS:0000000000000000
[ 8.673754] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8.673754] CR2: 0000000000000000 CR3: 000000011d9c1000 CR4: 00000000000006f0
[ 8.673754] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 8.673754] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 8.673754] Process vzctl (pid: 1737, veid=0, threadinfo ffff88011dd14000, task ffff88011a61a800)
[ 8.673754] Stack:
[ 8.673754] ffffffffa00e304c 0000000000000000 ffffea00046b2c80 ffff88011a8bade0
[ 8.673754] <0> 0000000000000000 0000000000000000 ffff88011dd15dd8 0000000000000000
[ 8.673754] <0> ffffffff810bfb27 0000000000000000 ffffea00046b2c80 0000000000000000
[ 8.673754] Call Trace:
[ 8.673754] [<ffffffffa00e304c>] ? ext4_da_invalidatepage+0x134/0x14b [ext4]
[ 8.673754] [<ffffffff810bfb27>] ? truncate_inode_page+0x45/0x84
[ 8.673754] [<ffffffff810bfc10>] ? truncate_inode_pages_range+0xaa/0x2a2
[ 8.673754] [<ffffffffa00b8cb3>] ? jbd2_journal_stop+0x20b/0x21e [jbd2]
[ 8.673754] [<ffffffffa022e113>] ? vzquota_inode_data+0x3b/0xa3 [vzdquota]
[ 8.673754] [<ffffffffa00e72a1>] ? ext4_delete_inode+0x0/0x21f [ext4]
[ 8.673754] [<ffffffffa022e375>] ? vzquota_inode_init_call+0x3a/0x6d [vzdquota]
[ 8.673754] [<ffffffffa00e72e4>] ? ext4_delete_inode+0x43/0x21f [ext4]
[ 8.673754] [<ffffffffa00e72a1>] ? ext4_delete_inode+0x0/0x21f [ext4]
[ 8.673754] [<ffffffffa00e72a1>] ? ext4_delete_inode+0x0/0x21f [ext4]
[ 8.673754] [<ffffffff8110350c>] ? generic_delete_inode+0xd4/0x160
[ 8.673754] [<ffffffff810fbae8>] ? do_unlinkat+0xe2/0x134
[ 8.673754] [<ffffffff812ecd95>] ? do_page_fault+0x2e0/0x2fc
[ 8.673754] [<ffffffff812eac25>] ? page_fault+0x25/0x30
[ 8.673754] [<ffffffff81010c12>] ? system_call_fastpath+0x16/0x1b
[ 8.673754] Code: Bad RIP value.
[ 8.673754] RIP [<(null)>] (null)
[ 8.673754] RSP <ffff88011dd15d30>
[ 8.673754] CR2: 0000000000000000
[ 8.679033] ---[ end trace bdec971a95bc5f9a ]---
[ 8.711019] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 8.711217] IP: [<(null)>] (null)
[ 8.711351] PGD 11e0a4067 PUD 11a4ff067 PMD 0
[ 8.711585] Oops: 0010 [#3] SMP
[ 8.711765] last sysfs file: /sys/devices/virtual/net/lo/operstate
[ 8.711861] CPU 1
[ 8.711989] Modules linked in: vzethdev vznetdev simfs vzrst vzcpt vzdquota vzmon vzdev xt_tcpudp xt_length xt_hl xt_tcpmss xt_TCPMSS iptable_mangle iptable_filter xt_multiport xt_limit xt_dscp ipt_REJECT ip_tables x_tables vzevent ext2 loop snd_pcm ata_generic snd_timer e100 ohci_hcd ehci_hcd snd soundcore r8169 snd_page_alloc usbcore nls_base mii i2c_piix4 pata_atiixp i2c_core edac_core button edac_mce_amd evdev pcspkr processor ext4 mbcache jbd2 crc16 dm_mod raid1 md_mod sd_mod crc_t10dif ahci libata scsi_mod thermal thermal_sys
[ 8.715130] Pid: 1760, comm: init Tainted: G D 2.6.32-5-openvz-amd64 #1 dzhanibekov GA-880GM-UD2H
[ 8.718931] RIP: 0010:[<0000000000000000>] [<(null)>] (null)
[ 8.718931] RSP: 0018:ffff88011a443a20 EFLAGS: 00010246
[ 8.718931] RAX: ffffffffa0233880 RBX: ffff88011a9af4c0 RCX: 000000000000000c
[ 8.718931] RDX: 0000000000000000 RSI: 0000000000002000 RDI: ffff88011a9af4c0
[ 8.718931] RBP: ffff88011962d460 R08: 0000000000000000 R09: ffff88011a9af400
[ 8.718931] R10: 0000000000000003 R11: ffff88011da2e800 R12: ffff88011a9af400
[ 8.718931] R13: 0000000000000002 R14: 0000000000000000 R15: ffff88011a9af7c8
[ 8.718931] FS: 00007fe16f9177a0(0000) GS:ffff880005a40000(0000) knlGS:0000000000000000
[ 8.718931] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 8.718931] CR2: 0000000000000000 CR3: 000000011a481000 CR4: 00000000000006e0
[ 8.718931] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 8.718931] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 8.718931] Process init (pid: 1760, veid=202, threadinfo ffff88011a442000, task ffff88011a61c800)
[ 8.718931] Stack:
[ 8.718931] ffffffffa00e44ca ffff88011962d460 0000000000000000 0000004000000000
[ 8.718931] <0> fffffffffffffff3 fffffffffffffff4 0000000000000000 ffffffffffff0000
[ 8.718931] <0> 0000000000000001 ffff88011da2e000 0000000000000000 00000000046bcc80
[ 8.718931] Call Trace:
[ 8.718931] [<ffffffffa00e44ca>] ? ext4_da_get_block_prep+0x20c/0x318 [ext4]
[ 8.718931] [<ffffffff81111cb8>] ? __block_prepare_write+0x14c/0x2c0
[ 8.718931] [<ffffffffa00e42be>] ? ext4_da_get_block_prep+0x0/0x318 [ext4]
[ 8.718931] [<ffffffffa00b9bfa>] ? jbd2_journal_start+0x96/0xc6 [jbd2]
[ 8.718931] [<ffffffff81111f87>] ? block_write_begin+0x7a/0xc7
[ 8.718931] [<ffffffffa00e71e8>] ? ext4_da_write_begin+0x1b9/0x272 [ext4]
[ 8.718931] [<ffffffffa00e42be>] ? ext4_da_get_block_prep+0x0/0x318 [ext4]
[ 8.718931] [<ffffffff810b77be>] ? generic_file_buffered_write+0x118/0x278
[ 8.718931] [<ffffffff810b7ccf>] ? __generic_file_aio_write+0x25f/0x293
[ 8.718931] [<ffffffff810b7d5c>] ? generic_file_aio_write+0x59/0x9f
[ 8.718931] [<ffffffff810f0d2a>] ? do_sync_write+0xce/0x113
[ 8.718931] [<ffffffff8106681a>] ? autoremove_wake_function+0x0/0x2e
[ 8.718931] [<ffffffff81121cf7>] ? fcntl_setlk+0x24e/0x262
[ 8.718931] [<ffffffff810f172a>] ? vfs_write+0xa9/0x102
[ 8.718931] [<ffffffff810f1896>] ? sys_write+0x49/0xc1
[ 8.718931] [<ffffffff81010c12>] ? system_call_fastpath+0x16/0x1b
[ 8.718931] Code: Bad RIP value.
[ 8.718931] RIP [<(null)>] (null)
[ 8.718931] RSP <ffff88011a443a20>
[ 8.718931] CR2: 0000000000000000
[ 8.724266] ---[ end trace bdec971a95bc5f9b ]---
[ 17.700160] eth0: no IPv6 routers present


** Model information
sys_vendor: Gigabyte Technology Co., Ltd.
product_name: GA-880GM-UD2H
product_version:
chassis_vendor: Gigabyte Technology Co., Ltd.
chassis_version:
bios_vendor: Award Software International, Inc.
bios_version: F5
board_vendor: Gigabyte Technology Co., Ltd.
board_name: GA-880GM-UD2H
board_version: x.x

** Loaded modules:
Module Size Used by
vzethdev 7301 0
vznetdev 17967 0
simfs 3087 0
vzrst 110318 0
vzcpt 97042 0
vzdquota 35158 0 [permanent]
vzmon 16317 4 vzethdev,vznetdev,vzrst,vzcpt
vzdev 1824 4 vzethdev,vznetdev,vzdquota,vzmon
xt_tcpudp 2319 0
xt_length 1164 0
xt_hl 1313 0
xt_tcpmss 1401 0
xt_TCPMSS 2935 0
iptable_mangle 2881 0
iptable_filter 2322 0
xt_multiport 2267 0
xt_limit 1782 0
xt_dscp 1805 0
ipt_REJECT 1953 0
ip_tables 14107 2 iptable_mangle,iptable_filter
x_tables 13213 10 xt_tcpudp,xt_length,xt_hl,xt_tcpmss,xt_TCPMSS,xt_m ultiport,xt_limit,xt_dscp,ipt_REJECT,ip_tables
vzevent 1723 1
ext2 53053 1
loop 11751 0
snd_pcm 60519 0
snd_timer 15598 1 snd_pcm
snd 46494 2 snd_pcm,snd_timer
soundcore 4598 1 snd
snd_page_alloc 6265 1 snd_pcm
i2c_piix4 8328 0
ata_generic 3047 0
e100 25860 0
ohci_hcd 19228 0
r8169 29229 0
mii 3210 2 e100,r8169
ehci_hcd 31167 0
pcspkr 1699 0
evdev 7368 3
usbcore 122194 3 ohci_hcd,ehci_hcd
nls_base 6377 1 usbcore
i2c_core 15712 1 i2c_piix4
pata_atiixp 3489 0
edac_core 29245 0
edac_mce_amd 6433 0
button 4682 0
processor 29999 0
ext4 289001 4
mbcache 5050 2 ext2,ext4
jbd2 67015 1 ext4
crc16 1319 1 ext4
dm_mod 53786 12
raid1 18319 3
md_mod 73648 4 raid1
sd_mod 29857 8
crc_t10dif 1276 1 sd_mod
ahci 32374 6
libata 133568 3 ata_generic,pata_atiixp,ahci
scsi_mod 122181 2 sd_mod,libata
thermal 11754 0
thermal_sys 11942 2 processor,thermal


-- System Information:
Debian Release: 6.0
APT prefers stable
APT policy: (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-5-openvz-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages linux-image-2.6.32-5-openvz-amd64 depends on:
ii debconf [debconf-2.0] 1.5.36.1 Debian configuration management sy
ii initramfs-tools [linux-initra 0.98.8 tools for generating an initramfs
ii linux-base 2.6.32-30 Linux image base package
ii module-init-tools 3.12-1 tools for managing Linux kernel mo
ii vzctl 3.0.24-12 server virtualization solution - c

Versions of packages linux-image-2.6.32-5-openvz-amd64 recommends:
pn firmware-linux-free <none> (no description available)

Versions of packages linux-image-2.6.32-5-openvz-amd64 suggests:
pn grub | lilo <none> (no description available)
pn linux-doc-2.6.32 <none> (no description available)

Versions of packages linux-image-2.6.32-5-openvz-amd64 is related to:
pn firmware-bnx2 <none> (no description available)
pn firmware-bnx2x <none> (no description available)
pn firmware-ipw2x00 <none> (no description available)
pn firmware-ivtv <none> (no description available)
pn firmware-iwlwifi <none> (no description available)
pn firmware-linux <none> (no description available)
ii firmware-linux-nonfree 0.28 Binary firmware for various driver
pn firmware-qlogic <none> (no description available)
pn firmware-ralink <none> (no description available)
pn xen-hypervisor <none> (no description available)

-- debconf information excluded



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