Bug 400699

Summary:	app-misc/byobu-5.5 sys-kernel/hardened-sources-3.1.5 - "INFO: task byobu-status:17613 blocked for more than 120 seconds." kernel oops in selinux_inode_permission+0xf3/0x150
Product:	Gentoo Linux	Reporter:	Marek Królikowski <admin>
Component:	New packages	Assignee:	Andrey Kislyuk (RETIRED) <weaver>
Status:	RESOLVED NEEDINFO
Severity:	critical	CC:	shell-tools
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Marek Królikowski 2012-01-25 07:52:48 UTC

After yesterday compiling app-misc/byobu-5.5 today i got oops in dmesg.

Reproducible: Always

Steps to Reproduce:
1. emerge byobu
2. run byobu
3. dmesg after few hours 
Actual Results:  
INFO: task byobu-status:17613 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
byobu-status    D c05a1d73     0 17613  17611 0x00000000
 ddc039b0 00000086 cf12c3c0 c05a1d73 00800000 c88f0c70 d3e844c0 000044c0
 ddc03d20 bdcf2c24 0000220c 000044c0 000044c0 ddc03d20 00000000 00000000
 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Call Trace:
 [<c05a1d73>] ? selinux_inode_permission+0xf3/0x150
 [<c085e966>] ? __mutex_lock_slowpath+0xa6/0x100
 [<c085e59d>] ? mutex_lock+0x1d/0x40
 [<c0532799>] ? do_lookup+0x249/0x360
 [<c05338c9>] ? path_lookupat+0xa9/0x700
 [<c0533f4a>] ? do_path_lookup+0x2a/0xf0
 [<c0534fd3>] ? user_path_at_empty+0x43/0x80
 [<c0503465>] ? handle_mm_fault+0x125/0x1e0
 [<c0535028>] ? user_path_at+0x18/0x20
 [<c052b164>] ? vfs_fstatat+0x44/0x80
 [<c052b1d8>] ? vfs_stat+0x18/0x20
 [<c052b5df>] ? sys_stat64+0xf/0x30
 [<c0862880>] ? vmalloc_fault+0x1d0/0x1d0
 [<c0866270>] ? sysenter_do_call+0x12/0x28


Expected Results:  
No oops in dmesg

Comment 1 Jeroen Roovers (RETIRED) gentoo-dev

2012-01-25 15:18:26 UTC

Looks like a kernel problem.

Comment 2 Marek Królikowski 2012-01-25 16:02:13 UTC

Hello
I got this kernel for 2 weeks on 12 servers and working with no problem
Mon Jan  9 07:06:25 2012 >>> sys-kernel/hardened-sources-3.1.5

But like i say after yesterday compiling
Mon Jan 23 10:01:04 2012 >>> app-misc/byobu-5.5
got this information in dmesg...
I know this is oops... but strange for 2 weeks working with no problem and after yesterday compiling new version of byobu got information:
INFO: task byobu-status:17613 blocked for more than 120 seconds.

For me looks strange ;-)

Comment 3 Andrey Kislyuk (RETIRED) gentoo-dev

2012-02-05 06:06:24 UTC

Can't do anything with this info