Messages in this thread | ![/](/images/icornerl.gif) | | Subject | Re: [PATCH] Minor scheduler fix to get rid of skipping in xmms | Date | Wed, 10 Sep 2003 17:14:54 -0700 | From | Cliff White <> |
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> > > Cliff White wrote: > > >> Nick Piggin wrote: > >> > > > >>Con Kolivas wrote: > >> > >> > > > >>Hi Con, > >>Any chance you could give this > >>http://www.kerneltrap.org/~npiggin/v14/sched-rollup-nopolicy-v14.gz > >>a try? It should apply against test5. > >> > >> > >> > >I have some STP tests scheduled against this also (PLM 2117) > >Please let me know if you want other combinations tested - am just catching up > >on > >this thread. > >cliffw > > > > Thanks Cliff that would be cool. If you could test this: > http://www.kerneltrap.org/~npiggin/v14/sched-rollup-v14.gz > as well would be good. The previous one is more important though. > sched-rollup-v14 runs good on 2-cpu w/reaim (more in next email): example: http://khack.osdl.org/stp/279657/
Has oops on 4-cpu when running the dbt2-1tier database test(below): Two runs, different oops. Let me know how much more detail you need. Both machines are Intel PIII x ~800mhz w/ 1GB RAM/cpu Diffs between the 2 and 4 way would include. : - different SCSI controllers - database uses raw IO kernel .config files should be the same for both, other than SCSI. cliffw
---------------------------- Sep 10 15:44:30 stp4-000 kernel: sdo: sdo1 Unable to handle kernel paging request at virtual address 4d7a7153 printing eip: c011c1f9 *pde = 0e81a067 *pte = 00000000 Oops: 0002 [#1] CPU: 3 EIP: 0060:[<c011c1f9>] Not tainted EFLAGS: 00010003 EIP is at load_balance+0x2a9/0x4d0 eax: de9c4998 ebx: c366a518 ecx: 4d7a7153 edx: c3672100 esi: c366a518 edi: c366a4f8 ebp: c3e8df64 esp: c3e8df30 ds: 007b es: 007b ss: 0068 Process kernel (pid: 4246, threadinfo=c3e8c000 task=f7b9b300) Stack: c3669bc0 c366a104 c3669bc0 c366a518 c366a100 00000000 00000003 00000080 0000000f 00000002 c3e8c000 c3671bc0 0000000f c3e8df88 c011c486 c3671bc0 00000000 0000000f 00000000 00000001 00000000 c0412084 c3e8dfc4 c012a6a5 Call Trace: [<c011c486>] rebalance_tick+0x66/0xa0 [<c012a6a5>] update_process_times+0x45/0x60 [<c0117961>] smp_apic_timer_interrupt+0x141/0x150 [<c010a0ca>] apic_timer_interrupt+0x1a/0x20
Code: 89 19 89 4b 04 8b 47 18 0f ab 42 04 ff 02 89 57 28 8b 5d 08 ---------- second 4-cpu run, same test -------- nable to handle kernel paging request at virtual address 20190078 printing eip: c011c9c4 *pde = 00000000 Oops: 0002 [#1] CPU: 1 EIP: 0060:[<c011c9c4>] Not tainted EFLAGS: 00010002 EIP is at schedule+0x224/0x5d0 eax: 00000001 ebx: cacfd940 ecx: 00000001 edx: 20190000 esi: de984460 edi: f73a8e00 ebp: caed3c28 esp: caed3be8 ds: 007b es: 007b ss: 0068 Process awk (pid: 9673, threadinfo=caed2000 task=cacfd940) Stack: de984460 840e6b72 00000003 d1bf3120 c3661bc0 c3661020 00000001 bfffa000 c11c03e0 00000007 f73a8e00 c3661590 003fe5d0 caed2000 0324ef80 f7983dc0 caed3c34 c011cda6 e8912660 00000001 c0150ed4 c3661034 00000000 00000000 Call Trace: [<c011cda6>] preempt_schedule+0x36/0x50 [<c0150ed4>] exit_mmap+0x1e4/0x240 [<c011f6a0>] mmput+0x70/0xc0 [<c0169bad>] exec_mmap+0x11d/0x210 [<c0169e03>] flush_old_exec+0x163/0xa10 [<c0169a80>] kernel_read+0x50/0x60 [<c018c2cc>] load_elf_binary+0x2dc/0xbc0 [<c011a148>] pgd_alloc+0x18/0x20 [<c011f59d>] mm_init+0xbd/0x100 [<c0169533>] copy_strings+0x213/0x290 [<c018bff0>] load_elf_binary+0x0/0xbc0 [<c016aa41>] search_binary_handler+0xa1/0x210 [<c016adc4>] do_execve+0x214/0x250 [<c0107c80>] sys_execve+0x50/0x80 [<c0109689>] sysenter_past_esp+0x52/0x71
Code: f0 0f ab 42 78 8b 42 10 05 00 00 00 40 0f 22 d8 8b 8a 9c 00
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