Hello Dhaval, On Tue, Jun 18, 2013 at 12:59:02PM -0400, Dhaval Giani wrote: > On 2013-06-18 12:11 AM, Minchan Kim wrote: > >Hello Dhaval, > > > >On Mon, Jun 17, 2013 at 12:24:07PM -0400, Dhaval Giani wrote: > >>Hi John, > >> > >>I have been giving your git tree a whirl, and in order to simulate a > >>limited memory environment, I was using memory cgroups. > >> > >>The program I was using to test is attached here. It is your test > >>code, with some changes (changing the syscall interface, reducing > >>the memory pressure to be generated). > >> > >>I trapped it in a memory cgroup with 1MB memory.limit_in_bytes and hit this, > >> > >>[ 406.207612] ------------[ cut here ]------------ > >>[ 406.207621] kernel BUG at mm/vrange.c:523! > >>[ 406.207626] invalid opcode: 0000 [#1] SMP > >>[ 406.207631] Modules linked in: > >>[ 406.207637] CPU: 0 PID: 1579 Comm: volatile-test Not tainted > >Thanks for the testing! > >Does below patch fix your problem? > > Yes it does! Thank you very much for the patch. Thaks for the confirming. While I tested it, I found several problems so I just sent fixes as reply of each [7/8] and [8/8]. Could you test it? FYI: John, Dhaval I am working to clean purging mess up so maybe it would need not a few change for purging part. Thanks! -- Kind regards, Minchan Kim -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>