Re: mm/compaction: BUG: NULL pointer dereference

2019-05-24 Thread Anshuman Khandual
On 05/24/2019 06:00 PM, Mel Gorman wrote: > On Fri, May 24, 2019 at 04:26:16PM +0530, Anshuman Khandual wrote: >> >> >> On 05/24/2019 02:50 PM, Suzuki K Poulose wrote: >>> Hi, >>> >>> We are hitting NULL pointer dereferences while running stress tests with >>> KVM. >>> See splat [0]. The test

Re: mm/compaction: BUG: NULL pointer dereference

2019-05-24 Thread Mel Gorman
On Fri, May 24, 2019 at 04:26:16PM +0530, Anshuman Khandual wrote: > > > On 05/24/2019 02:50 PM, Suzuki K Poulose wrote: > > Hi, > > > > We are hitting NULL pointer dereferences while running stress tests with > > KVM. > > See splat [0]. The test is to spawn 100 VMs all doing standard debian >

Re: mm/compaction: BUG: NULL pointer dereference

2019-05-24 Thread Anshuman Khandual
On 05/24/2019 02:50 PM, Suzuki K Poulose wrote: > Hi, > > We are hitting NULL pointer dereferences while running stress tests with KVM. > See splat [0]. The test is to spawn 100 VMs all doing standard debian > installation (Thanks to Marc's automated scripts, available here [1] ). > The

Re: mm/compaction: BUG: NULL pointer dereference

2019-05-24 Thread Suzuki K Poulose
Hi Mel, Thanks for your quick response. On 24/05/2019 11:39, Mel Gorman wrote: On Fri, May 24, 2019 at 10:20:19AM +0100, Suzuki K Poulose wrote: Hi, We are hitting NULL pointer dereferences while running stress tests with KVM. See splat [0]. The test is to spawn 100 VMs all doing standard

Re: mm/compaction: BUG: NULL pointer dereference

2019-05-24 Thread Mel Gorman
On Fri, May 24, 2019 at 10:20:19AM +0100, Suzuki K Poulose wrote: > Hi, > > We are hitting NULL pointer dereferences while running stress tests with KVM. > See splat [0]. The test is to spawn 100 VMs all doing standard debian > installation (Thanks to Marc's automated scripts, available here [1]

mm/compaction: BUG: NULL pointer dereference

2019-05-24 Thread Suzuki K Poulose
Hi, We are hitting NULL pointer dereferences while running stress tests with KVM. See splat [0]. The test is to spawn 100 VMs all doing standard debian installation (Thanks to Marc's automated scripts, available here [1] ). The problem has been reproduced with a better rate of success from