On 12/21/2015 03:28 PM, Sasha Levin wrote: > On 12/21/2015 08:08 AM, Christoph Lameter wrote: >> > On Fri, 18 Dec 2015, Sasha Levin wrote: >> > >>>> >> > [ 531.164630] RIP vmstat_update (mm/vmstat.c:1408) >> > Hmmm.. Yes we need to fold the diffs first before disabling the timer >> > otherwise the shepherd task may intervene. >> > >> > Does this patch fix it? > It didn't. With the patch I'm still seeing: I've also noticed a new warning from the workqueue code which my scripts didn't pick up before: [ 3462.380681] BUG: workqueue lockup - pool cpus=2 node=2 flags=0x4 nice=0 stuck for 54s! [ 3462.522041] workqueue vmstat: flags=0xc [ 3462.527795] pwq 4: cpus=2 node=2 flags=0x0 nice=0 active=1/256 [ 3462.554836] pending: vmstat_update Thanks, Sasha -- 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>