Re: kswapd0: wxcessive CPU usage

2012-10-11 Thread Jiri Slaby
On 10/12/2012 12:14 AM, Andrew Morton wrote: > Could you please do a sysrq-T a few times while it's spinning, to > confirm that this trace is consistently the culprit? For me yes, shrink_slab is in the most of the traces. -- js suse labs -- To unsubscribe from this list: send the line "unsubscri

Re: kswapd0: wxcessive CPU usage

2012-10-11 Thread Andrew Morton
On Thu, 11 Oct 2012 10:52:28 +0200 Jiri Slaby wrote: > with 3.6.0-next-20121008, kswapd0 is spinning my CPU at 100% for 1 > minute or so. If I try to suspend to RAM, this trace appears: > kswapd0 R running task0 577 2 0x > 00c0 ccc

Re: kswapd0: wxcessive CPU usage

2012-10-11 Thread Valdis . Kletnieks
On Thu, 11 Oct 2012 19:59:33 +0200, Jiri Slaby said: > On 10/11/2012 07:56 PM, valdis.kletni...@vt.edu wrote: > > On Thu, 11 Oct 2012 17:34:24 +0200, Jiri Slaby said: > >> On 10/11/2012 03:44 PM, valdis.kletni...@vt.edu wrote: > >>> So at least we know we're not hallucinating. :) > >> > >> Just a t

Re: kswapd0: wxcessive CPU usage

2012-10-11 Thread Jiri Slaby
On 10/11/2012 07:56 PM, valdis.kletni...@vt.edu wrote: > On Thu, 11 Oct 2012 17:34:24 +0200, Jiri Slaby said: >> On 10/11/2012 03:44 PM, valdis.kletni...@vt.edu wrote: >>> So at least we know we're not hallucinating. :) >> >> Just a thought? Do you have raid? > > Nope, just a 160G laptop spinning

Re: kswapd0: wxcessive CPU usage

2012-10-11 Thread Valdis . Kletnieks
On Thu, 11 Oct 2012 17:34:24 +0200, Jiri Slaby said: > On 10/11/2012 03:44 PM, valdis.kletni...@vt.edu wrote: > > So at least we know we're not hallucinating. :) > > Just a thought? Do you have raid? Nope, just a 160G laptop spinning hard drive. Filesystems are ext4 on LVM on a cryptoLUKS partitio

Re: kswapd0: wxcessive CPU usage

2012-10-11 Thread Jiri Slaby
On 10/11/2012 03:44 PM, valdis.kletni...@vt.edu wrote: > So at least we know we're not hallucinating. :) Just a thought? Do you have raid? -- js suse labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordo

Re: kswapd0: wxcessive CPU usage

2012-10-11 Thread Valdis . Kletnieks
On Thu, 11 Oct 2012 10:52:28 +0200, Jiri Slaby said: > Hi, > > with 3.6.0-next-20121008, kswapd0 is spinning my CPU at 100% for 1 > minute or so. > [] ? put_super+0x25/0x40 > [] ? grab_super_passive+0x24/0xa0 > [] ? prune_super+0x149/0x1b0 > [] ? shrink_slab+0xa1/0x2d0 > [] ? kswapd+0x66d/0x

kswapd0: wxcessive CPU usage

2012-10-11 Thread Jiri Slaby
Hi, with 3.6.0-next-20121008, kswapd0 is spinning my CPU at 100% for 1 minute or so. If I try to suspend to RAM, this trace appears: kswapd0 R running task0 577 2 0x 00c0 cccd 8801c4146800 8801c4b15c88 8116e