Re: [PATCH v2] writeback: fix negative bdi max pause

2013-10-14 Thread Jan Kara
On Sat 12-10-13 12:45:17, Wu Fengguang wrote: > Toralf runs trinity on UML/i386. > After some time it hangs and the last message line is > > BUG: soft lockup - CPU#0 stuck for 22s! [trinity-child0:1521] > > It's found that pages_dirtied becomes very large. > More than 10 pages in

Re: [PATCH v2] writeback: fix negative bdi max pause

2013-10-14 Thread Jan Kara
On Sat 12-10-13 12:45:17, Wu Fengguang wrote: Toralf runs trinity on UML/i386. After some time it hangs and the last message line is BUG: soft lockup - CPU#0 stuck for 22s! [trinity-child0:1521] It's found that pages_dirtied becomes very large. More than 10 pages in this

[PATCH v2] writeback: fix negative bdi max pause

2013-10-11 Thread Fengguang Wu
Toralf runs trinity on UML/i386. After some time it hangs and the last message line is BUG: soft lockup - CPU#0 stuck for 22s! [trinity-child0:1521] It's found that pages_dirtied becomes very large. More than 10 pages in this case: period = HZ * pages_dirtied /

[PATCH v2] writeback: fix negative bdi max pause

2013-10-11 Thread Fengguang Wu
Toralf runs trinity on UML/i386. After some time it hangs and the last message line is BUG: soft lockup - CPU#0 stuck for 22s! [trinity-child0:1521] It's found that pages_dirtied becomes very large. More than 10 pages in this case: period = HZ * pages_dirtied /