Bug 25622

Summary:	SLUB sysfs implementation triggers circular locking complaint
Product:	Memory Management	Reporter:	Bart Van Assche (bvanassche)
Component:	Slab Allocator	Assignee:	Pekka Enberg (penberg)
Status:	RESOLVED CODE_FIX
Severity:	normal
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.37-rc6+	Subsystem:
Regression:	No	Bisected commit-id:
Attachments:	Lockdep complaint Kernel config

Description Bart Van Assche 2010-12-25 18:54:12 UTC

Created attachment 41612 [details]
Lockdep complaint

Comment 1 Bart Van Assche 2010-12-25 18:54:45 UTC

Created attachment 41622 [details]
Kernel config

Comment 2 Bart Van Assche 2010-12-25 18:55:54 UTC

$ cat /proc/cmdline 
BOOT_IMAGE=/boot/vmlinuz-2.6.37-rc6+ root=UUID=c2d91556-8ed3-4a2a-95d9-50d0203bcfcc ro quiet splash slub_debug=FZPU

This has been observed while testing SCST, but I don't think this lockdep complaint is related in any way to SCST (see also http://git.kernel.org/?p=linux/kernel/git/bvanassche/scst.git;a=shortlog;h=refs/heads/scst).

Comment 3 Bart Van Assche 2012-01-22 19:29:50 UTC

Fixed by commit 925268a06dc2b1ff7bfcc37419a6827a0e739639.