Opened at 2012-11-13T20:15:35Z
Last modified at 2012-11-22T01:13:37Z
#1855 new defect
Potential interaction problem between tahoe backup and virtualbox shared drives on OSX host / debian guest.
| Reported by: | nejucomo | Owned by: | davidsarah |
|---|---|---|---|
| Priority: | normal | Milestone: | undecided |
| Component: | code | Version: | 1.9.2 |
| Keywords: | virtualbox mac tahoe-backup hang | Cc: | |
| Launchpad Bug: |
Description
Concise Symptoms:
On debian inside a virtualbox instance on top of osx, I ran a long tahoe backup --verbose foo tahoe:path/in/grid command overnight. In the morning the process appears to be hanging mid-line in the output. Dmesg shows stack traces in the kernel.
Detail:
The output of the backup process has hundreds of lines about uploading and processing various paths. The final line is incomplete and the process appears to be hanging. I know the line is incomplete because it says:
uploading '<path omitted>'.. <path omitted> -> URI:CHK:<letters_and_digits>:<letters_and_digits>:1:1:
-The final field of the URI is missing (which I believe is the file size).
When I examine dmesg I see:
[456046.974585] vboxsf: Successfully loaded version 3.2.10_OSE (interface 0x00010004) [460007.478870] ------------[ cut here ]------------ [460007.478877] WARNING: at /build/buildd-linux-2.6_2.6.32-41squeeze2-amd64-NDo8b7/linux-2.6-2.6.32/debian/build/source_amd64_none/fs/sysfs/dir.c:491 sysfs_add_one+0xcc/0xe4() [460007.478879] Hardware name: VirtualBox [460007.478880] sysfs: cannot create duplicate filename '/devices/virtual/bdi/vboxsf-Music' [460007.478882] Modules linked in: vboxsf vboxvideo drm fuse loop snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss snd_pcm psmouse i2c_piix4 i2c_core snd_timer serio_raw evdev battery snd joydev vboxguest parport_pc parport processor button ac soundcore snd_page_alloc pcspkr ext3 jbd mbcache dm_mod usbhid hid sg sr_mod cdrom sd_mod crc_t10dif ata_generic ohci_hcd ehci_hcd ata_piix ahci usbcore libata scsi_mod thermal thermal_sys e1000 nls_base [last unloaded: scsi_wait_scan] [460007.478909] Pid: 14833, comm: mount.vboxsf Not tainted 2.6.32-5-amd64 #1 [460007.478910] Call Trace: [460007.478913] [<ffffffff8114037f>] ? sysfs_add_one+0xcc/0xe4 [460007.478915] [<ffffffff8114037f>] ? sysfs_add_one+0xcc/0xe4 [460007.478918] [<ffffffff8104df9c>] ? warn_slowpath_common+0x77/0xa3 [460007.478921] [<ffffffff8104e024>] ? warn_slowpath_fmt+0x51/0x59 [460007.478923] [<ffffffff811402ab>] ? sysfs_pathname+0x35/0x3d [460007.478925] [<ffffffff811402ab>] ? sysfs_pathname+0x35/0x3d [460007.478926] [<ffffffff811402ab>] ? sysfs_pathname+0x35/0x3d [460007.478928] [<ffffffff811402ab>] ? sysfs_pathname+0x35/0x3d [460007.478930] [<ffffffff8114037f>] ? sysfs_add_one+0xcc/0xe4 [460007.478932] [<ffffffff811408fb>] ? create_dir+0x4f/0x7c [460007.478934] [<ffffffff8114095d>] ? sysfs_create_dir+0x35/0x4a [460007.478937] [<ffffffff8118f9c3>] ? kobject_get+0x12/0x17 [460007.478939] [<ffffffff8118faf9>] ? kobject_add_internal+0xcb/0x181 [460007.478942] [<ffffffff8118fd5b>] ? kobject_add+0x74/0x7c [460007.478944] [<ffffffff81195755>] ? vsnprintf+0x1ed/0x449 [460007.478948] [<ffffffff812fc266>] ? mutex_lock+0xd/0x31 [460007.478950] [<ffffffff8118f9c3>] ? kobject_get+0x12/0x17 [460007.478953] [<ffffffff8121e350>] ? get_device_parent+0x105/0x17f [460007.478955] [<ffffffff8121f1e2>] ? device_add+0xce/0x537 [460007.478958] [<ffffffff8121f6f3>] ? device_create_vargs+0x96/0xc2 [460007.478961] [<ffffffff810c8cdc>] ? bdi_register+0x6a/0x175 [460007.478963] [<ffffffff812fc266>] ? mutex_lock+0xd/0x31 [460007.478966] [<ffffffff8119bad7>] ? __percpu_counter_init+0x72/0x7b [460007.478969] [<ffffffff810c89fd>] ? bdi_init+0x14f/0x17b [460007.478973] [<ffffffffa0099e5b>] ? sf_init_backing_dev+0x24/0x44 [vboxsf] [460007.478975] [<ffffffffa0098595>] ? sf_read_super_26+0x506/0x5b1 [vboxsf] [460007.478978] [<ffffffffa009808f>] ? sf_read_super_26+0x0/0x5b1 [vboxsf] [460007.478982] [<ffffffff810f134d>] ? get_sb_nodev+0x4f/0x83 [460007.478984] [<ffffffff810f10b7>] ? vfs_kern_mount+0x99/0x14b [460007.478986] [<ffffffff810f11bc>] ? do_kern_mount+0x43/0xe2 [460007.478989] [<ffffffff811052ab>] ? do_mount+0x72a/0x792 [460007.478992] [<ffffffff81105393>] ? sys_mount+0x80/0xbd [460007.478994] [<ffffffff81010b42>] ? system_call_fastpath+0x16/0x1b [460007.478996] ---[ end trace a6619f2d830bc124 ]--- [460007.478998] kobject_add_internal failed for vboxsf-Music with -EEXIST, don't try to register things with the same name in the same directory. [460007.479001] Pid: 14833, comm: mount.vboxsf Tainted: G W 2.6.32-5-amd64 #1 [460007.479003] Call Trace: [460007.479004] [<ffffffff8118fb9c>] ? kobject_add_internal+0x16e/0x181 [460007.479006] [<ffffffff8118fd5b>] ? kobject_add+0x74/0x7c [460007.479009] [<ffffffff81195755>] ? vsnprintf+0x1ed/0x449 [460007.479011] [<ffffffff812fc266>] ? mutex_lock+0xd/0x31 [460007.479013] [<ffffffff8118f9c3>] ? kobject_get+0x12/0x17 [460007.479014] [<ffffffff8121e350>] ? get_device_parent+0x105/0x17f [460007.479016] [<ffffffff8121f1e2>] ? device_add+0xce/0x537 [460007.479019] [<ffffffff8121f6f3>] ? device_create_vargs+0x96/0xc2 [460007.479021] [<ffffffff810c8cdc>] ? bdi_register+0x6a/0x175 [460007.479023] [<ffffffff812fc266>] ? mutex_lock+0xd/0x31 [460007.479025] [<ffffffff8119bad7>] ? __percpu_counter_init+0x72/0x7b [460007.479028] [<ffffffff810c89fd>] ? bdi_init+0x14f/0x17b [460007.479030] [<ffffffffa0099e5b>] ? sf_init_backing_dev+0x24/0x44 [vboxsf] [460007.479033] [<ffffffffa0098595>] ? sf_read_super_26+0x506/0x5b1 [vboxsf] [460007.479035] [<ffffffffa009808f>] ? sf_read_super_26+0x0/0x5b1 [vboxsf] [460007.479038] [<ffffffff810f134d>] ? get_sb_nodev+0x4f/0x83 [460007.479040] [<ffffffff810f10b7>] ? vfs_kern_mount+0x99/0x14b [460007.479042] [<ffffffff810f11bc>] ? do_kern_mount+0x43/0xe2 [460007.479045] [<ffffffff811052ab>] ? do_mount+0x72a/0x792 [460007.479047] [<ffffffff81105393>] ? sys_mount+0x80/0xbd [460007.479049] [<ffffffff81010b42>] ? system_call_fastpath+0x16/0x1b [460007.479051] ------------[ cut here ]------------ [460007.479054] WARNING: at /build/buildd-linux-2.6_2.6.32-41squeeze2-amd64-NDo8b7/linux-2.6-2.6.32/debian/build/source_amd64_none/fs/inode.c:1272 generic_detach_inode+0x88/0x16b() [460007.479056] Hardware name: VirtualBox [460007.479057] Modules linked in: vboxsf vboxvideo drm fuse loop snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss snd_pcm psmouse i2c_piix4 i2c_core snd_timer serio_raw evdev battery snd joydev vboxguest parport_pc parport processor button ac soundcore snd_page_alloc pcspkr ext3 jbd mbcache dm_mod usbhid hid sg sr_mod cdrom sd_mod crc_t10dif ata_generic ohci_hcd ehci_hcd ata_piix ahci usbcore libata scsi_mod thermal thermal_sys e1000 nls_base [last unloaded: scsi_wait_scan] [460007.479076] Pid: 14833, comm: mount.vboxsf Tainted: G W 2.6.32-5-amd64 #1 [460007.479077] Call Trace: [460007.479079] [<ffffffff810fff41>] ? generic_detach_inode+0x88/0x16b [460007.479081] [<ffffffff810fff41>] ? generic_detach_inode+0x88/0x16b [460007.479083] [<ffffffff8104df9c>] ? warn_slowpath_common+0x77/0xa3 [460007.479086] [<ffffffff810fff41>] ? generic_detach_inode+0x88/0x16b [460007.479088] [<ffffffff81100d9d>] ? generic_drop_inode+0x15/0x58 [460007.479090] [<ffffffffa00985fa>] ? sf_read_super_26+0x56b/0x5b1 [vboxsf] [460007.479093] [<ffffffffa009808f>] ? sf_read_super_26+0x0/0x5b1 [vboxsf] [460007.479095] [<ffffffff810f134d>] ? get_sb_nodev+0x4f/0x83 [460007.479097] [<ffffffff810f10b7>] ? vfs_kern_mount+0x99/0x14b [460007.479100] [<ffffffff810f11bc>] ? do_kern_mount+0x43/0xe2 [460007.479102] [<ffffffff811052ab>] ? do_mount+0x72a/0x792 [460007.479104] [<ffffffff81105393>] ? sys_mount+0x80/0xbd [460007.479106] [<ffffffff81010b42>] ? system_call_fastpath+0x16/0x1b [460007.479107] ---[ end trace a6619f2d830bc125 ]--- [460007.479109] ------------[ cut here ]------------ [460007.479111] WARNING: at /build/buildd-linux-2.6_2.6.32-41squeeze2-amd64-NDo8b7/linux-2.6-2.6.32/debian/build/source_amd64_none/fs/inode.c:1277 generic_detach_inode+0xca/0x16b() [460007.479113] Hardware name: VirtualBox [460007.479114] Modules linked in: vboxsf vboxvideo drm fuse loop snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss snd_pcm psmouse i2c_piix4 i2c_core snd_timer serio_raw evdev battery snd joydev vboxguest parport_pc parport processor button ac soundcore snd_page_alloc pcspkr ext3 jbd mbcache dm_mod usbhid hid sg sr_mod cdrom sd_mod crc_t10dif ata_generic ohci_hcd ehci_hcd ata_piix ahci usbcore libata scsi_mod thermal thermal_sys e1000 nls_base [last unloaded: scsi_wait_scan] [460007.479132] Pid: 14833, comm: mount.vboxsf Tainted: G W 2.6.32-5-amd64 #1 [460007.479133] Call Trace: [460007.479136] [<ffffffff810fff83>] ? generic_detach_inode+0xca/0x16b [460007.479138] [<ffffffff810fff83>] ? generic_detach_inode+0xca/0x16b [460007.479140] [<ffffffff8104df9c>] ? warn_slowpath_common+0x77/0xa3 [460007.479142] [<ffffffff810fff83>] ? generic_detach_inode+0xca/0x16b [460007.479144] [<ffffffff81100d9d>] ? generic_drop_inode+0x15/0x58 [460007.479147] [<ffffffffa00985fa>] ? sf_read_super_26+0x56b/0x5b1 [vboxsf] [460007.479149] [<ffffffffa009808f>] ? sf_read_super_26+0x0/0x5b1 [vboxsf] [460007.479151] [<ffffffff810f134d>] ? get_sb_nodev+0x4f/0x83 [460007.479154] [<ffffffff810f10b7>] ? vfs_kern_mount+0x99/0x14b [460007.479156] [<ffffffff810f11bc>] ? do_kern_mount+0x43/0xe2 [460007.479158] [<ffffffff811052ab>] ? do_mount+0x72a/0x792 [460007.479160] [<ffffffff81105393>] ? sys_mount+0x80/0xbd [460007.479162] [<ffffffff81010b42>] ? system_call_fastpath+0x16/0x1b [460007.479163] ---[ end trace a6619f2d830bc126 ]--- [460007.479164] ------------[ cut here ]------------ [460007.479167] WARNING: at /build/buildd-linux-2.6_2.6.32-41squeeze2-amd64-NDo8b7/linux-2.6-2.6.32/debian/build/source_amd64_none/fs/inode.c:1284 generic_detach_inode+0x14f/0x16b() [460007.479169] Hardware name: VirtualBox [460007.479169] Modules linked in: vboxsf vboxvideo drm fuse loop snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm_oss snd_mixer_oss snd_pcm psmouse i2c_piix4 i2c_core snd_timer serio_raw evdev battery snd joydev vboxguest parport_pc parport processor button ac soundcore snd_page_alloc pcspkr ext3 jbd mbcache dm_mod usbhid hid sg sr_mod cdrom sd_mod crc_t10dif ata_generic ohci_hcd ehci_hcd ata_piix ahci usbcore libata scsi_mod thermal thermal_sys e1000 nls_base [last unloaded: scsi_wait_scan] [460007.479188] Pid: 14833, comm: mount.vboxsf Tainted: G W 2.6.32-5-amd64 #1 [460007.479189] Call Trace: [460007.479191] [<ffffffff81100008>] ? generic_detach_inode+0x14f/0x16b [460007.479193] [<ffffffff81100008>] ? generic_detach_inode+0x14f/0x16b [460007.479195] [<ffffffff8104df9c>] ? warn_slowpath_common+0x77/0xa3 [460007.479198] [<ffffffff81100008>] ? generic_detach_inode+0x14f/0x16b [460007.479200] [<ffffffff81100d9d>] ? generic_drop_inode+0x15/0x58 [460007.479202] [<ffffffffa00985fa>] ? sf_read_super_26+0x56b/0x5b1 [vboxsf] [460007.479205] [<ffffffffa009808f>] ? sf_read_super_26+0x0/0x5b1 [vboxsf] [460007.479207] [<ffffffff810f134d>] ? get_sb_nodev+0x4f/0x83 [460007.479209] [<ffffffff810f10b7>] ? vfs_kern_mount+0x99/0x14b [460007.479211] [<ffffffff810f11bc>] ? do_kern_mount+0x43/0xe2 [460007.479214] [<ffffffff811052ab>] ? do_mount+0x72a/0x792 [460007.479216] [<ffffffff81105393>] ? sys_mount+0x80/0xbd [460007.479218] [<ffffffff81010b42>] ? system_call_fastpath+0x16/0x1b [460007.479219] ---[ end trace a6619f2d830bc127 ]--- [460007.479522] sf_read_super_aux err=-22
Note:
I'm filing this for completeness or posterity, but there are several things I should test: upgrading to the latest virtual box & upgrading my kernel, for example.
This may be very specific to debian+virtualbox+osx all at particular versions.
Change History (2)
comment:1 Changed at 2012-11-18T06:48:31Z by nejucomo
comment:2 Changed at 2012-11-22T01:13:37Z by davidsarah
- Component changed from unknown to code
- Keywords virtualbox mac tahoe-backup hang added
Note: See
TracTickets for help on using
tickets.
I asserted the cause of the exception was a database lock, but actually the database is owned by a different user. When I killed the suspended backup and re-tried the secondary (aka "new") backup, it failed with the same exception details.