Re: mm: lru_add_drain_all hangs

2015-03-28 Thread Vlastimil Babka
On 27.3.2015 22:36, Sasha Levin wrote: > On 03/27/2015 06:07 AM, Vlastimil Babka wrote: >>> [ 3614.918852] trinity-c7 D 8802f4487b58 26976 16252 9410 >>> 0x1000 [ 3614.919580] 8802f4487b58 8802f6b98ca8 [ 3614.920435]

Re: mm: lru_add_drain_all hangs

2015-03-28 Thread Vlastimil Babka
On 27.3.2015 22:36, Sasha Levin wrote: On 03/27/2015 06:07 AM, Vlastimil Babka wrote: [ 3614.918852] trinity-c7 D 8802f4487b58 26976 16252 9410 0x1000 [ 3614.919580] 8802f4487b58 8802f6b98ca8 [ 3614.920435] 88017d3e0558

Re: mm: lru_add_drain_all hangs

2015-03-27 Thread Sasha Levin
On 03/27/2015 06:07 AM, Vlastimil Babka wrote: >> [ 3614.918852] trinity-c7 D 8802f4487b58 26976 16252 9410 >> 0x1000 >> > [ 3614.919580] 8802f4487b58 8802f6b98ca8 >> > >> > [ 3614.920435] 88017d3e0558 88017d3e0530

Re: mm: lru_add_drain_all hangs

2015-03-27 Thread Vlastimil Babka
On 03/27/2015 04:32 AM, Sasha Levin wrote: > Hi all, > > I've started seeing pretty frequent hangs within lru_add_drain_all(). It > doesn't > seem to be hanging on a specific thing, and it appears that even a moderate > load > can cause it to hang (just 50 trinity threads in this case). > >

Re: mm: lru_add_drain_all hangs

2015-03-27 Thread Vlastimil Babka
On 03/27/2015 04:32 AM, Sasha Levin wrote: Hi all, I've started seeing pretty frequent hangs within lru_add_drain_all(). It doesn't seem to be hanging on a specific thing, and it appears that even a moderate load can cause it to hang (just 50 trinity threads in this case). Notice that

Re: mm: lru_add_drain_all hangs

2015-03-27 Thread Sasha Levin
On 03/27/2015 06:07 AM, Vlastimil Babka wrote: [ 3614.918852] trinity-c7 D 8802f4487b58 26976 16252 9410 0x1000 [ 3614.919580] 8802f4487b58 8802f6b98ca8 [ 3614.920435] 88017d3e0558 88017d3e0530 8802f6b98008