Re: fault injection caused oops in proc_flush_task

2014-08-09 Thread Oleg Nesterov
On 08/07, Eric W. Biederman wrote: > > Dave Jones writes: > > > Oops: [#1] PREEMPT SMP DEBUG_PAGEALLOC > > CPU: 2 PID: 8506 Comm: trinity-c124 Not tainted 3.16.0+ #41 > > task: 880227fc95e0 ti: 8800929a task.ti: 8800929a > > RIP: 0010:[] [] > > proc_flush_task+0x99/0x1b0

Re: fault injection caused oops in proc_flush_task

2014-08-07 Thread Eric W. Biederman
Dave Jones writes: > Because I don't have enough oopses in my life, I decided to play > with the fault injection code today. It's not something I hear about > people trying too often, so I wondered what horrors lurk.. > > So I ran this.. > > #!/bin/bash > > for FAILTYPE in failslab fail_page_allo

fault injection caused oops in proc_flush_task

2014-08-07 Thread Dave Jones
Because I don't have enough oopses in my life, I decided to play with the fault injection code today. It's not something I hear about people trying too often, so I wondered what horrors lurk.. So I ran this.. #!/bin/bash for FAILTYPE in failslab fail_page_alloc do echo N > /sys/kernel/debug/$FA