* SLUB cifs_request: kmem_cache_destroy called for cache that still has objects. @ 2012-05-16 0:46 Jeff Layton [not found] ` <20120515204642.1a5bedee-4QP7MXygkU+dMjc06nkz3ljfA9RmPOcC@public.gmane.org> 0 siblings, 1 reply; 4+ messages in thread From: Jeff Layton @ 2012-05-16 0:46 UTC (permalink / raw) To: linux-cifs-u79uwXL29TY76Z2rM5mHXA I saw this today when unplugging cifs.ko in a stock -rc7 kernel. I never mounted any cifs mounts, so this is entirely due to module initialization as far as I can tell: [ 464.776843] SLUB cifs_request: kmem_cache_destroy called for cache that still has objects. [ 464.779071] Pid: 4738, comm: rmmod Not tainted 3.4.0-0.rc7.git0.1.fc18.x86_64 #1 [ 464.780243] Call Trace: [ 464.780433] [<ffffffff8116b53a>] kmem_cache_destroy+0x2ba/0x360 [ 464.780870] [<ffffffffa00d6469>] cifs_destroy_request_bufs+0x21/0x3b [cifs] [ 464.781397] [<ffffffffa00d66a6>] exit_cifs+0x30/0x98a [cifs] [ 464.781944] [<ffffffff810b4a3e>] sys_delete_module+0x16e/0x2d0 [ 464.782482] [<ffffffff8117c186>] ? filp_close+0x66/0xa0 [ 464.782903] [<ffffffff81603769>] system_call_fastpath+0x16/0x1b ...any ideas? -- Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> ^ permalink raw reply [flat|nested] 4+ messages in thread
[parent not found: <20120515204642.1a5bedee-4QP7MXygkU+dMjc06nkz3ljfA9RmPOcC@public.gmane.org>]
* Re: SLUB cifs_request: kmem_cache_destroy called for cache that still has objects. [not found] ` <20120515204642.1a5bedee-4QP7MXygkU+dMjc06nkz3ljfA9RmPOcC@public.gmane.org> @ 2012-05-16 4:00 ` Steve French [not found] ` <CAH2r5muoDPbWv5jpK7hkyVAV_EOGoAVUccz86nZsxPy6WyahpQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 0 siblings, 1 reply; 4+ messages in thread From: Steve French @ 2012-05-16 4:00 UTC (permalink / raw) To: Jeff Layton; +Cc: linux-cifs-u79uwXL29TY76Z2rM5mHXA I don't see that on my rc7 system and I have slub debugging and various other debugging options on in my rc7 config. Let me know if you find a way to reproduce it or want me to try with your config. On Tue, May 15, 2012 at 7:46 PM, Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote: > I saw this today when unplugging cifs.ko in a stock -rc7 kernel. I > never mounted any cifs mounts, so this is entirely due to module > initialization as far as I can tell: > > [ 464.776843] SLUB cifs_request: kmem_cache_destroy called for cache that still has objects. > [ 464.779071] Pid: 4738, comm: rmmod Not tainted 3.4.0-0.rc7.git0.1.fc18.x86_64 #1 > [ 464.780243] Call Trace: > [ 464.780433] [<ffffffff8116b53a>] kmem_cache_destroy+0x2ba/0x360 > [ 464.780870] [<ffffffffa00d6469>] cifs_destroy_request_bufs+0x21/0x3b [cifs] > [ 464.781397] [<ffffffffa00d66a6>] exit_cifs+0x30/0x98a [cifs] > [ 464.781944] [<ffffffff810b4a3e>] sys_delete_module+0x16e/0x2d0 > [ 464.782482] [<ffffffff8117c186>] ? filp_close+0x66/0xa0 > [ 464.782903] [<ffffffff81603769>] system_call_fastpath+0x16/0x1b > > ...any ideas? > -- > Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> > -- > To unsubscribe from this list: send the line "unsubscribe linux-cifs" in > the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Thanks, Steve ^ permalink raw reply [flat|nested] 4+ messages in thread
[parent not found: <CAH2r5muoDPbWv5jpK7hkyVAV_EOGoAVUccz86nZsxPy6WyahpQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>]
* Re: SLUB cifs_request: kmem_cache_destroy called for cache that still has objects. [not found] ` <CAH2r5muoDPbWv5jpK7hkyVAV_EOGoAVUccz86nZsxPy6WyahpQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> @ 2012-05-16 6:11 ` Suresh Jayaraman [not found] ` <4FB3451B.5020704-IBi9RG/b67k@public.gmane.org> 0 siblings, 1 reply; 4+ messages in thread From: Suresh Jayaraman @ 2012-05-16 6:11 UTC (permalink / raw) To: Steve French; +Cc: Jeff Layton, linux-cifs-u79uwXL29TY76Z2rM5mHXA On 05/16/2012 09:30 AM, Steve French wrote: > I don't see that on my rc7 system and I have slub debugging and > various other debugging options on in my rc7 config. Let me know if > you find a way to reproduce it or want me to try with your config. > > On Tue, May 15, 2012 at 7:46 PM, Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote: >> I saw this today when unplugging cifs.ko in a stock -rc7 kernel. I >> never mounted any cifs mounts, so this is entirely due to module >> initialization as far as I can tell: >> >> [ 464.776843] SLUB cifs_request: kmem_cache_destroy called for cache that still has objects. >> [ 464.779071] Pid: 4738, comm: rmmod Not tainted 3.4.0-0.rc7.git0.1.fc18.x86_64 #1 >> [ 464.780243] Call Trace: >> [ 464.780433] [<ffffffff8116b53a>] kmem_cache_destroy+0x2ba/0x360 >> [ 464.780870] [<ffffffffa00d6469>] cifs_destroy_request_bufs+0x21/0x3b [cifs] >> [ 464.781397] [<ffffffffa00d66a6>] exit_cifs+0x30/0x98a [cifs] >> [ 464.781944] [<ffffffff810b4a3e>] sys_delete_module+0x16e/0x2d0 >> [ 464.782482] [<ffffffff8117c186>] ? filp_close+0x66/0xa0 >> [ 464.782903] [<ffffffff81603769>] system_call_fastpath+0x16/0x1b >> >> ...any ideas? Sounds to me like a slub problem affecting random modules that could be fixed by this patch http://comments.gmane.org/gmane.linux.kernel.mm/78106 If you are able to reliably reproduce, it is worth giving the patch a shot. But, I could be totally wrong too... Suresh ^ permalink raw reply [flat|nested] 4+ messages in thread
[parent not found: <4FB3451B.5020704-IBi9RG/b67k@public.gmane.org>]
* Re: SLUB cifs_request: kmem_cache_destroy called for cache that still has objects. [not found] ` <4FB3451B.5020704-IBi9RG/b67k@public.gmane.org> @ 2012-05-16 11:02 ` Jeff Layton 0 siblings, 0 replies; 4+ messages in thread From: Jeff Layton @ 2012-05-16 11:02 UTC (permalink / raw) To: Suresh Jayaraman; +Cc: Steve French, linux-cifs-u79uwXL29TY76Z2rM5mHXA On Wed, 16 May 2012 11:41:39 +0530 Suresh Jayaraman <sjayaraman-IBi9RG/b67k@public.gmane.org> wrote: > On 05/16/2012 09:30 AM, Steve French wrote: > > I don't see that on my rc7 system and I have slub debugging and > > various other debugging options on in my rc7 config. Let me know if > > you find a way to reproduce it or want me to try with your config. > > > > On Tue, May 15, 2012 at 7:46 PM, Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote: > >> I saw this today when unplugging cifs.ko in a stock -rc7 kernel. I > >> never mounted any cifs mounts, so this is entirely due to module > >> initialization as far as I can tell: > >> > >> [ 464.776843] SLUB cifs_request: kmem_cache_destroy called for cache that still has objects. > >> [ 464.779071] Pid: 4738, comm: rmmod Not tainted 3.4.0-0.rc7.git0.1.fc18.x86_64 #1 > >> [ 464.780243] Call Trace: > >> [ 464.780433] [<ffffffff8116b53a>] kmem_cache_destroy+0x2ba/0x360 > >> [ 464.780870] [<ffffffffa00d6469>] cifs_destroy_request_bufs+0x21/0x3b [cifs] > >> [ 464.781397] [<ffffffffa00d66a6>] exit_cifs+0x30/0x98a [cifs] > >> [ 464.781944] [<ffffffff810b4a3e>] sys_delete_module+0x16e/0x2d0 > >> [ 464.782482] [<ffffffff8117c186>] ? filp_close+0x66/0xa0 > >> [ 464.782903] [<ffffffff81603769>] system_call_fastpath+0x16/0x1b > >> > >> ...any ideas? > > Sounds to me like a slub problem affecting random modules that could be > fixed by this patch > > http://comments.gmane.org/gmane.linux.kernel.mm/78106 > > If you are able to reliably reproduce, it is worth giving the patch a > shot. But, I could be totally wrong too... > Thanks for the pointer. That seems to have fixed it. I'll see if I can reply to the thread and give them a "Tested-by" as well... Thanks! -- Jeff Layton <jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2012-05-16 11:02 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2012-05-16 0:46 SLUB cifs_request: kmem_cache_destroy called for cache that still has objects Jeff Layton [not found] ` <20120515204642.1a5bedee-4QP7MXygkU+dMjc06nkz3ljfA9RmPOcC@public.gmane.org> 2012-05-16 4:00 ` Steve French [not found] ` <CAH2r5muoDPbWv5jpK7hkyVAV_EOGoAVUccz86nZsxPy6WyahpQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2012-05-16 6:11 ` Suresh Jayaraman [not found] ` <4FB3451B.5020704-IBi9RG/b67k@public.gmane.org> 2012-05-16 11:02 ` Jeff Layton
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