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Groups > linux.kernel > #1470089
| From | Borislav Petkov <bp@suse.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [LKP] [lkp] [x86/hweight] 65ea11ec6a: will-it-scale.per_process_ops 9.3% improvement |
| Date | 2016-08-25 13:50 +0200 |
| Message-ID | <sa1kt-qZ-5@gated-at.bofh.it> (permalink) |
| References | (5 earlier) <s7mv8-2qJ-3@gated-at.bofh.it> <s7mEO-2uu-11@gated-at.bofh.it> <s7mY9-2RP-1@gated-at.bofh.it> <s9Z90-7za-7@gated-at.bofh.it> <s9ZLH-82P-13@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Thu, Aug 25, 2016 at 03:05:19AM -0700, H. Peter Anvin wrote:
> I'm wondering if one of those 23 invocations sets up some kind of
> corrupt data that continues to get used.
That could be one plausible explanation. Look at what calls
__sw_hweight64:
initmem_init
numa_policy_init
page_writeback_init
paging_init
pcpu_embed_first_chunk
pcpu_setup_first_chunk
sched_init
set_rq_online.part.46
setup_arch
setup_per_cpu_areas
update_sysctl
x86_64_start_kernel
x86_64_start_reservations
x86_numa_init
zone_sizes_init
I could very well imagine per CPU areas or some sched structure or
whatever getting silently corrupted.
Thanks.
--
Regards/Gruss,
Boris.
ECO tip #101: Trim your mails when you reply.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--
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Re: [lkp] [x86/hweight] 65ea11ec6a: will-it-scale.per_process_ops 9.3% improvement "H. Peter Anvin" <hpa@zytor.com> - 2016-08-16 19:00 +0200
Re: [lkp] [x86/hweight] 65ea11ec6a: will-it-scale.per_process_ops 9.3% improvement Borislav Petkov <bp@suse.de> - 2016-08-16 19:20 +0200
Re: [lkp] [x86/hweight] 65ea11ec6a: will-it-scale.per_process_ops 9.3% improvement "H. Peter Anvin" <hpa@zytor.com> - 2016-08-17 01:20 +0200
Re: [lkp] [x86/hweight] 65ea11ec6a: will-it-scale.per_process_ops 9.3% improvement Borislav Petkov <bp@suse.de> - 2016-08-17 07:50 +0200
Re: [LKP] [lkp] [x86/hweight] 65ea11ec6a: will-it-scale.per_process_ops 9.3% improvement "Huang\, Ying" <ying.huang@intel.com> - 2016-08-18 00:30 +0200
Re: [LKP] [lkp] [x86/hweight] 65ea11ec6a: will-it-scale.per_process_ops 9.3% improvement Borislav Petkov <bp@suse.de> - 2016-08-18 05:50 +0200
Re: [LKP] [lkp] [x86/hweight] 65ea11ec6a: will-it-scale.per_process_ops 9.3% improvement "Huang\, Ying" <ying.huang@intel.com> - 2016-08-18 06:00 +0200
Re: [LKP] [lkp] [x86/hweight] 65ea11ec6a: will-it-scale.per_process_ops 9.3% improvement Borislav Petkov <bp@suse.de> - 2016-08-18 06:20 +0200
Re: [LKP] [lkp] [x86/hweight] 65ea11ec6a: will-it-scale.per_process_ops 9.3% improvement Borislav Petkov <bp@suse.de> - 2016-08-25 11:30 +0200
Re: [LKP] [lkp] [x86/hweight] 65ea11ec6a: will-it-scale.per_process_ops 9.3% improvement "H. Peter Anvin" <hpa@zytor.com> - 2016-08-25 12:10 +0200
Re: [LKP] [lkp] [x86/hweight] 65ea11ec6a: will-it-scale.per_process_ops 9.3% improvement Borislav Petkov <bp@suse.de> - 2016-08-25 13:50 +0200
Re: [LKP] [lkp] [x86/hweight] 65ea11ec6a: will-it-scale.per_process_ops 9.3% improvement "H. Peter Anvin" <hpa@zytor.com> - 2016-08-25 22:20 +0200
Re: [LKP] [lkp] [x86/hweight] 65ea11ec6a: will-it-scale.per_process_ops 9.3% improvement "H. Peter Anvin" <hpa@zytor.com> - 2016-08-18 06:00 +0200
Re: [lkp] [x86/hweight] 65ea11ec6a: will-it-scale.per_process_ops 9.3% improvement Peter Zijlstra <peterz@infradead.org> - 2016-08-17 08:50 +0200
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