Public bug reported:
Hi
this crash occurred synchronizing a usb disk with a xfs partition with a
remote server mounted with cifs
something like
rsync -rtlv --delete /media/store/software/mirror/ /home/sandro/mnt/ES1/mirror/
/dev/sdb1 on /media/store type xfs (rw,nosuid,nodev,noatime,uhelper=hal)
//ES1/mirror on /home/sandro/mnt/ES1/mirror type cifs
(rw,mand,nosuid,nodev,user=sandro)
machine is hardy amd64
Jul 3 11:26:23 champagne kernel: [ 3047.758475] Unable to handle kernel NULL
pointer dereference at 0000000000000004 RIP:
Jul 3 11:26:23 champagne kernel: [ 3047.758488] [find_get_page+0x31/0x70]
find_get_page+0x31/0x70
Jul 3 11:26:23 champagne kernel: [ 3047.758504] PGD 34657067 PUD 32beb067 PMD 0
Jul 3 11:26:23 champagne kernel: [ 3047.758511] Oops: 0000 [1] SMP
Jul 3 11:26:23 champagne kernel: [ 3047.758517] CPU 0
Jul 3 11:26:23 champagne kernel: [ 3047.758520] Modules linked in: nls_cp437
nls_utf8 cifs af_packet binfmt_misc hidp hid rfcomm l2cap usb_storage libusual
ipv6 acpi_cpufreq cp
ufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_ondemand freq_table
cpufreq_conservative sbs sbshc dock iptable_filter ip_tables x_tables ext3 jbd
mbcache sbp2 loop arc4
ecb pata_pcmcia iwl4965 snd_hda_intel joydev iwlwifi_mac80211 snd_pcm_oss
pcmcia snd_mixer_oss hci_usb snd_seq_dummy snd_pcm bluetooth cfg80211 fglrx(P)
snd_seq_oss led_class s
nd_page_alloc snd_hwdep video snd_seq_midi snd_rawmidi output
snd_seq_midi_event container tpm_infineon snd_seq psmouse yenta_socket shpchp
snd_timer snd_seq_device mmc_core ric
oh_mmc serio_raw rsrc_nonstatic pcmcia_core pci_hotplug wmi_acer battery
parport_pc parport tpm tpm_bios iTCO_wdt iTCO_vendor_support ac snd button
pcspkr soundcore evdev intel_
agp dm_multipath xfs sha256_generic aes_x86_64 cbc blkcipher sd_mod sg sr_mod
cdrom ata_piix pata_acpi ahci ohci1394 ieee1394 ehci_hcd uhci_hcd
Jul 3 11:26:23 champagne kernel: ta_generic e1000 usbcore libata scsi_mod
dm_crypt dm_mirror dm_snapshot dm_mod thermal processor fan fbcon tileblit font
bitblit softcursor fus
e
Jul 3 11:26:23 champagne kernel: [ 3047.758679] Pid: 12707, comm: rsync
Tainted: P 2.6.24-19-generic #1
Jul 3 11:26:23 champagne kernel: [ 3047.758684] RIP:
0010:[find_get_page+0x31/0x70] [find_get_page+0x31/0x70]
find_get_page+0x31/0x70
Jul 3 11:26:23 champagne kernel: [ 3047.758694] RSP: 0018:ffff810034cb5c48
EFLAGS: 00010002
Jul 3 11:26:23 champagne kernel: [ 3047.758698] RAX: 0000000000000004 RBX:
0000000000002b0d RCX: 0000000000000004
Jul 3 11:26:23 champagne kernel: [ 3047.758703] RDX: ffff8100347e78c0 RSI:
0000000000002b0d RDI: 0000000000000000
Jul 3 11:26:23 champagne kernel: [ 3047.758707] RBP: ffff8100b87a9c50 R08:
0000000000000000 R09: 0000000000000001
Jul 3 11:26:23 champagne kernel: [ 3047.758712] R10: ffff810117442900 R11:
ffffffff803440f0 R12: 0000000000002b0d
Jul 3 11:26:23 champagne kernel: [ 3047.758716] R13: 0000000000000033 R14:
0000000000002b0d R15: ffff8100818c53c0
Jul 3 11:26:23 champagne kernel: [ 3047.758721] FS: 00007f7f2b3016e0(0000)
GS:ffffffff805b9000(0000) knlGS:0000000000000000
Jul 3 11:26:23 champagne kernel: [ 3047.758727] CS: 0010 DS: 0000 ES: 0000
CR0: 000000008005003b
Jul 3 11:26:23 champagne kernel: [ 3047.758731] CR2: 0000000000000004 CR3:
000000003466c000 CR4: 00000000000006e0
Jul 3 11:26:23 champagne kernel: [ 3047.758735] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Jul 3 11:26:23 champagne kernel: [ 3047.758739] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Jul 3 11:26:23 champagne kernel: [ 3047.758745] Process rsync (pid: 12707,
threadinfo ffff810034cb4000, task ffff8100344907e0)
Jul 3 11:26:23 champagne kernel: [ 3047.758749] Stack: ffff8100b87a9c50
ffff81013b34af80 ffff8100b87a9c50 ffffffff8028567c
Jul 3 11:26:23 champagne kernel: [ 3047.758759] 0000000100000000
ffffffff80284b30 ffff810034cb5d08 ffff810034cb5e58
Jul 3 11:26:23 champagne kernel: [ 3047.758767] ffff8100818c5428
ffff8100b87a9b40 0000000000002b40 0000000000002b0c
Jul 3 11:26:23 champagne kernel: [ 3047.758774] Call Trace:
Jul 3 11:26:23 champagne kernel: [ 3047.758790]
[do_generic_mapping_read+0x11c/0x3e0] do_generic_mapping_read+0x11c/0x3e0
Jul 3 11:26:23 champagne kernel: [ 3047.758801] [file_read_actor+0x0/0x160]
file_read_actor+0x0/0x160
Jul 3 11:26:23 champagne kernel: [ 3047.758836]
[xfs:generic_file_aio_read+0xff/0x1b0] generic_file_aio_read+0xff/0x1b0
Jul 3 11:26:23 champagne kernel: [ 3047.758923] [xfs:xfs_read+0x11c/0x250]
:xfs:xfs_read+0x11c/0x250
Jul 3 11:26:23 champagne kernel: [ 3047.758954]
[ext3:do_sync_read+0xd9/0xbb0] do_sync_read+0xd9/0x120
Jul 3 11:26:23 champagne kernel: [ 3047.758987] [<ffffffff80253a00>]
autoremove_wake_function+0x0/0x30
Jul 3 11:26:23 champagne kernel: [ 3047.759042] [vfs_read+0xed/0x190]
vfs_read+0xed/0x190
Jul 3 11:26:23 champagne kernel: [ 3047.759060] [sys_read+0x53/0x90]
sys_read+0x53/0x90
Jul 3 11:26:23 champagne kernel: [ 3047.759080] [system_call+0x7e/0x83]
system_call+0x7e/0x83
Jul 3 11:26:23 champagne kernel: [ 3047.759113]
Jul 3 11:26:23 champagne kernel: [ 3047.759115]
Jul 3 11:26:23 champagne kernel: [ 3047.759116] Code: 48 8b 00 48 89 ca 25 00
40 02 00 48 3d 00 40 02 00 74 1b f0
Jul 3 11:26:23 champagne kernel: [ 3047.759136] RIP [find_get_page+0x31/0x70]
find_get_page+0x31/0x70
Jul 3 11:26:23 champagne kernel: [ 3047.759144] RSP <ffff810034cb5c48>
Jul 3 11:26:23 champagne kernel: [ 3047.759147] CR2: 0000000000000004
Jul 3 11:26:23 champagne kernel: [ 3047.759155] ---[ end trace
37fdba8b1520def6 ]---
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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kernel crash " Unable to handle kernel NULL pointer dereference"
https://bugs.launchpad.net/bugs/245176
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