Messages in this thread | | | From | Denis Vlasenko <> | Subject | Re: Kernel Oops with HIMEM+VM in 2.4.19,20 | Date | Fri, 10 Jan 2003 11:08:39 +0200 |
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On 10 January 2003 10:37, Anthony Lau wrote: > Hello, > > I am getting reproducible kernel oops and random segmentation > faults whenever the kernel starts using VM. Without any VM pages > being used, the system is stable. > > I have tested kernels compiled with and without HIMEM support > (all other kernel config options identical). Without HIMEM 4GB > support, the system is stable for weeks. With HIMEM 4GB support, > the system starts oops'ing and seg. faulting when VM starts > being used.
You mean when your system starts to swap? Details? (How much/how heavy it swaps before oops? vmstat output?)
> My system info: > > 1.5GB physical RAM (MemTest86 run for 2 times, no errors) > 2.0GB VM on a partition > Aopen AX34u with Via Apollo Pro 133T chipset > > Sample Oops from logs: [snipped] > > Because of the symptoms, I think that there could be some > incompatibility between Himem and the VM subsystem. Of course > I may have just configured my kernel incorrectly. > > Any help is appreciated and I will gladly supply more logs > if I knew which ones would be useful.
Kernel version and .config? Arrange klogd to be started with -x. Process oopses with ksymoops. Then contact VM people (listed in no particular order):
William Irwin <wli@holomorphy.com> [02 jul 2002] Send bug reports and/or feature requests related to many tasks, rmap, space consumption, or allocators to me. I'm involved in * rmap * memory allocators * reducing space consumed by data structures (e.g. struct page) * issues arising in workloads with many tasks * kernel janitoring See also: Rik van Riel <riel@surriel.com> Andrea Arcangeli <andrea@suse.de> Martin Bligh <Martin.Bligh@us.ibm.com> Andrew Morton <akpm@digeo.com>
Andrea Arcangeli <andrea@suse.de> [28 mar 2002] Send VM related bug reports and patches to me. I'm especially interested in VM issues with: * lots of RAM and CPUs * NUMA * heavy swap scenarios * performance of I/O intensive workloads (in particular with lots of async buffer flushing involved) See also Martin J. Bligh <Martin.Bligh@us.ibm.com> entry Mail also: Arjan van de Ven <arjanv@redhat.com>
Martin J. Bligh <Martin.Bligh@us.ibm.com> [28 mar 2002] I'm interested in VM issues with lots (>4G for i386) of RAM, lots of CPUs, NUMA
Rik van Riel <riel@conectiva.com.br> [07 feb 2002] Send me VM related stuff, please CC to linux-mm@kvack.org -- vda - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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