Date: Tue, 23 Sep 2008 15:43:53 -0400 From: "Josh Carroll" <josh.carroll@gmail.com> To: "Mikhail Teterin" <mi+mill@aldan.algebra.com> Cc: stable@freebsd.org, "Paul B. Mahol" <onemda@gmail.com> Subject: Re: 7.0-stable: a hung process - scheduler bug? Message-ID: <8cb6106e0809231243q3f874ccap50520dde1e0e63b2@mail.gmail.com> In-Reply-To: <48D93914.3020502@aldan.algebra.com> References: <48D92589.8000200@aldan.algebra.com> <3a142e750809231125o579445baufb5f2676e4d9a2ca@mail.gmail.com> <48D93914.3020502@aldan.algebra.com>
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> However, what I'm seeing on my system today is evidence of the scheduler > having a bug, rather than merely being suboptimal. If the old scheduler is > still maintained and supposed to work (however sub-optimally) in 4-CPU > configurations, I'd expect either inquiries for more debug-information or > assurances, that the bug is known and worked on. I'm no expert, but I don't think you can necessarily conclude that it is the scheduler yet. It very well may be, but I agree that someone with more expertise hopefully will ask for more detailed debug/trace information to pin down where the problem lies. > In the July 26th sys/conf/NOTES file the SCHED_BSD4 is still on the default > option.... GENERIC for i386 and amd64 has ULE as the default in RELENG_7. Regards, Josh
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