|O. Hartmann||Jul 27, 2009 7:00 am|
|Attilio Rao||Jul 27, 2009 7:08 am|
|Kamigishi Rei||Jul 27, 2009 7:29 am|
|O. Hartmann||Jul 27, 2009 12:54 pm|
|Anton Shterenlikht||Jul 27, 2009 2:04 pm|
|Anton Shterenlikht||Jul 28, 2009 3:35 am|
|O. Hartmann||Jul 28, 2009 7:22 am|
|Anton Shterenlikht||Jul 28, 2009 7:45 am|
|Marcel Moolenaar||Jul 28, 2009 8:31 am|
|Marcel Moolenaar||Jul 28, 2009 8:34 am|
|Alexandre "Sunny" Kovalenko||Jul 29, 2009 3:33 pm|
|Anton Shterenlikht||Jul 30, 2009 2:05 am|
|Kamigishi Rei||Jul 30, 2009 4:46 am|
|Anton Shterenlikht||Jul 30, 2009 4:55 am|
|Kamigishi Rei||Jul 30, 2009 4:59 am|
|Marcel Moolenaar||Jul 30, 2009 10:02 am|
|Anton Shterenlikht||Jul 30, 2009 10:09 am|
|Marcel Moolenaar||Jul 30, 2009 10:16 am|
|John Baldwin||Jul 31, 2009 5:46 am|
|Sven Esbjerg||Jul 31, 2009 9:03 am|
|Marcel Moolenaar||Jul 31, 2009 9:40 am|
|O. Hartmann||Jul 31, 2009 10:01 am|
|John Baldwin||Jul 31, 2009 10:25 am|
|Marcel Moolenaar||Jul 31, 2009 11:01 am|
|John Baldwin||Jul 31, 2009 11:50 am|
|Subject:||Re: FreeBSD 8.0-BETA2/amd64 crashes on SMP under load|
|From:||Marcel Moolenaar (xcl...@mac.com)|
|Date:||Jul 28, 2009 8:34:29 am|
On Jul 28, 2009, at 7:45 AM, Anton Shterenlikht wrote:
On Tue, Jul 28, 2009 at 02:22:50PM +0000, O. Hartmann wrote:
Anton Shterenlikht wrote:
On Mon, Jul 27, 2009 at 10:04:28PM +0100, Anton Shterenlikht wrote:
On Mon, Jul 27, 2009 at 09:55:12PM +0200, O. Hartmann wrote:
Kamigishi Rei wrote:
O. Hartmann wrote:
I have the problem of crashing FreeBSD 8.0-BETA2/amd64 under load on all of our SMP boxes. Is there an issue known at the moment? If not, I will prepare the kernel for whitnessing and provide more informations, if you wish.
A quick question: what is in the crash message, i.e. the backtrace? And what kind of crash is it - a panic() or a fatal trap?
On the 8-core server box, I sometimes see :
Fatal trap 12: page fault while in kernel mode fault code = supervisor read, page not present
Not sure if it's related, but on ia64 SMP (2 cpus) with 8.0- current and later with 8.0-beta1 (I havent' built beta2 yet) I'm getting crashes under load every so often. E.g buildworld -j8 is likely to crash the box. No messages, just a sudden freeze, no backtrace or panic, and then reboot.
If load is less heavy, e.g. fewer processes and some idle time, the problem doesn't seem to appear.
I'm happy to do any further testing, if suggested.
my ia64 8.0-beta1 SMP box died again on make -j8 buildworld with no panic or log entries.
Is it possible that some kernel variable needs to be increased? E.g. kern.maxproc, kern.maxfiles, etc. Or perhaps I'm talking complete rubbish..
I suggest you try again with a UP kernel - a suggestion from a kernel-nnob, sorry. My SMP boxes work now with UP-kernel, but they are really slowish although they have modern Intel C2D/Penryn cores.
I need SMP for OpenMP codes. It's a shame if SMP is buggy, but I guess all is down to small user base..
I have no problems with SMP. If you don't have a panic, then you may have a hardware problem. Check for MCA records.
-- Marcel Moolenaar xcl...@mac.com
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