BUG: Dentry ffff81003ac17410{i=161b,n=cow} still in use (1) [unmount of rootfs rootfs]
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
High
|
Ben Collins | ||
Intrepid |
Fix Released
|
High
|
Ben Collins |
Bug Description
This bug reproducibly hangs the system toward the end of an installation of the desktop CD (I tested with 20080723 Ubuntu amd64 desktop). A trace can be found below. After a few seconds, some further traces appear on the console which are presumably fallout. They were not logged to kmsg, and thus I had to take photos of them. I can provide these on request.
<3>[ 2888.979902] BUG: Dentry ffff81003ac1741
<0>[ 2888.979902] ------------[ cut here ]------------
<2>[ 2888.979902] kernel BUG at /build/
<0>[ 2888.979902] invalid opcode: 0000 [1] SMP
<4>[ 2888.979902] CPU 1
<4>[ 2888.979902] Modules linked in: sbp2 usb_storage libusual mtd zlib_deflate lzo_decompress lzo_compress nls_utf8 ufs qnx4 hfsplus hfs minix ntfs msdos xfs reiserfs jfs vfat fat ext2 ipv6 af_packet i915 drm rfcomm l2cap bluetooth uinput ppdev parport_pc lp parport acpi_cpufreq cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_ondemand freq_table cpufreq_
ata_piix pata_acpi ohci1394 ieee1394 ahci ata_generic libata scsi_mod uhci_hcd ehci_hcd usbcore e1000e dock thermal processor fan fbcon tileblit font bitblit softcursor uvesafb cn fuse [last unloaded: jffs2]
<4>[ 2888.979902] Pid: 14276, comm: gparted.postrm Not tainted 2.6.26-4-generic #1
<4>[ 2888.979902] RIP: 0010:[shrink_
<4>[ 2888.979902] RSP: 0018:ffff81001e
<4>[ 2888.979902] RAX: 0000000000000069 RBX: ffff81003d4020e0 RCX: ffff81000392fe60
<4>[ 2888.979902] RDX: ffffffff805fd348 RSI: 0000000000000086 RDI: 0000000000000296
<4>[ 2888.979902] RBP: ffff81003ac17410 R08: fffffffffd9da600 R09: 000000c1d7d6b5de
<4>[ 2888.979902] R10: 0000000000000000 R11: ffffffff802243d0 R12: ffff81003ac17470
<4>[ 2888.979902] R13: 0000000000000000 R14: 0000000000000002 R15: 0000000000001000
<4>[ 2888.979902] FS: 00007f28490186e
<4>[ 2888.979902] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[ 2888.979902] CR2: 0000000001dcd438 CR3: 000000001c5fb000 CR4: 00000000000006e0
<4>[ 2888.979902] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
<4>[ 2888.979902] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
<4>[ 2888.979902] Process gparted.postrm (pid: 14276, threadinfo ffff81001e95c000, task ffff8100025d0000)
<4>[ 2888.979902] Stack: ffff81003d9ac668 ffff81003d9ac400 ffffffff804f4fc0 ffff81001e95df28
<4>[ 2888.979902] ffff81001e95df38 ffffffff802da519 ffff81003d9ac400 ffffffff802c7509
<4>[ 2888.979902] ffffffff8060ba20 0000000000000001 ffffffff8060ba20 ffffffff802c7639
<4>[ 2888.979902] Call Trace:
<4>[ 2888.979902] [shrink_
<4>[ 2888.979902] [mtd:generic_
<4>[ 2888.979902] [fuse:kill_
<4>[ 2888.979902] [mtd:deactivate
<4>[ 2888.979902] [sys_getcwd+
<4>[ 2888.979902] [system_
<4>[ 2888.979902]
<4>[ 2888.979902]
<0>[ 2888.979902] Code: 8b 08 48 8b 45 10 48 85 c0 74 04 48 8b 50 40 48 8d 86 68 02 00 00 48 c7 c7 08 0a 5b 80 48 89 ee 48 89 04 24 31 c0 e8 26 53 1f 00 <0f> 0b eb fe 0f 0b eb fe 66 66 66 2e 0f 1f 84 00 00 00 00 00 53
<1>[ 2888.979902] RIP [shrink_
<4>[ 2888.979902] RSP <ffff81001e95de88>
<4>[ 2888.998399] ---[ end trace c1b471ca0e041271 ]---
Attaching a complete dmesg for the system where this occurs