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Groups > linux.kernel > #1490350
| From | Dave Hansen <dave.hansen@intel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] mm: warn about allocations which stall for too long |
| Date | 2016-09-23 19:40 +0200 |
| Message-ID | <skCC6-6Ov-23@gated-at.bofh.it> (permalink) |
| References | <sktS9-1fi-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 09/23/2016 01:15 AM, Michal Hocko wrote:
> + /* Make sure we know about allocations which stall for too long */
> + if (!(gfp_mask & __GFP_NOWARN) && time_after(jiffies, alloc_start + stall_timeout)) {
> + pr_warn("%s: page alloction stalls for %ums: order:%u mode:%#x(%pGg)\n",
> + current->comm, jiffies_to_msecs(jiffies-alloc_start),
> + order, gfp_mask, &gfp_mask);
> + stall_timeout += 10 * HZ;
> + dump_stack();
> + }
This would make an awesome tracepoint. There's probably still plenty of
value to having it in dmesg, but the configurability of tracepoints is
hard to beat.
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[PATCH] mm: warn about allocations which stall for too long Michal Hocko <mhocko@kernel.org> - 2016-09-23 10:20 +0200
Re: [PATCH] mm: warn about allocations which stall for too long "Hillf Danton" <hillf.zj@alibaba-inc.com> - 2016-09-23 10:40 +0200
Re: [PATCH] mm: warn about allocations which stall for too long Michal Hocko <mhocko@kernel.org> - 2016-09-23 10:40 +0200
Re: [PATCH] mm: warn about allocations which stall for too long "Hillf Danton" <hillf.zj@alibaba-inc.com> - 2016-09-23 11:00 +0200
Re: [PATCH] mm: warn about allocations which stall for too long Michal Hocko <mhocko@kernel.org> - 2016-09-23 11:20 +0200
Re: [PATCH] mm: warn about allocations which stall for too long Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-09-23 16:40 +0200
Re: [PATCH] mm: warn about allocations which stall for too long Michal Hocko <mhocko@kernel.org> - 2016-09-23 17:10 +0200
Re: [PATCH] mm: warn about allocations which stall for too long Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-09-24 05:10 +0200
Re: [PATCH] mm: warn about allocations which stall for too long Michal Hocko <mhocko@kernel.org> - 2016-09-26 10:20 +0200
Re: [PATCH] mm: warn about allocations which stall for too long Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-09-27 15:00 +0200
Re: [PATCH] mm: warn about allocations which stall for too long Michal Hocko <mhocko@kernel.org> - 2016-09-29 10:50 +0200
Re: [PATCH] mm: warn about allocations which stall for too long Dave Hansen <dave.hansen@intel.com> - 2016-09-23 19:40 +0200
Re: [PATCH] mm: warn about allocations which stall for too long Balbir Singh <bsingharora@gmail.com> - 2016-09-24 15:20 +0200
Re: [PATCH] mm: warn about allocations which stall for too long Michal Hocko <mhocko@kernel.org> - 2016-09-26 10:20 +0200
Re: [PATCH] mm: warn about allocations which stall for too long Michal Hocko <mhocko@kernel.org> - 2016-09-26 10:20 +0200
[PATCH 2/2] mm: warn about allocations which stall for too long Michal Hocko <mhocko@kernel.org> - 2016-09-29 10:50 +0200
Re: [PATCH 2/2] mm: warn about allocations which stall for too long Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-09-29 11:10 +0200
Re: [PATCH 2/2] mm: warn about allocations which stall for too long Michal Hocko <mhocko@kernel.org> - 2016-09-29 11:20 +0200
[PATCH 1/2] mm: consolidate warn_alloc_failed users Michal Hocko <mhocko@kernel.org> - 2016-09-29 10:50 +0200
Re: [PATCH 1/2] mm: consolidate warn_alloc_failed users Vlastimil Babka <vbabka@suse.cz> - 2016-09-29 11:30 +0200
[PATCH 0/2] warn about allocations which stall for too long Michal Hocko <mhocko@kernel.org> - 2016-09-29 10:50 +0200
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