Messages in this thread | | | Date | Thu, 29 Oct 2015 11:24:47 +0900 | From | Tejun Heo <> | Subject | Re: [patch 3/3] vmstat: Create our own workqueue |
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Hello,
That's weird.
On Wed, Oct 28, 2015 at 08:57:28PM +0900, Tetsuo Handa wrote: > [ 272.851035] Showing busy workqueues and worker pools: > [ 272.852583] workqueue events: flags=0x0 > [ 272.853942] pwq 6: cpus=3 node=0 flags=0x0 nice=0 active=1/256 > [ 272.855781] pending: vmw_fb_dirty_flush [vmwgfx] > [ 272.857500] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 > [ 272.859359] pending: vmpressure_work_fn > [ 272.860840] workqueue events_freezable_power_: flags=0x84 > [ 272.862461] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=2/256 > [ 272.864479] in-flight: 11286:disk_events_workfn
What's this guy doing? Can you get stack dump on 11286 (or whatever is in flight in the next lockup)?
> [ 272.866065] pending: disk_events_workfn > [ 272.867587] workqueue vmstat: flags=0x8 > [ 272.868942] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 > [ 272.870785] pending: vmstat_update > [ 272.872248] pool 2: cpus=1 node=0 flags=0x0 nice=0 workers=4 idle: 14 218 43
Thanks.
-- tejun
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