Messages in this thread | | | Subject | Re: [patch] voluntary-preempt-2.6.8-rc3-O5 | From | Lee Revell <> | Date | Tue, 10 Aug 2004 17:56:00 -0400 |
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On Tue, 2004-08-10 at 09:26, Ingo Molnar wrote: > i've uploaded the latest version of the voluntary-preempt patch: > > http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.8-rc3-O5 > > -O5 fixes the APIC lockup issues. The bug was primarily caused by PCI > POST delays causing IRQ storms of level-triggered IRQ sources that were > hardirq-redirected. Also found some bugs in delayed-IRQ masking and > unmasking. SMP should thus work again too. >
The mlockall() issue seems to be fixed. Now I get this one when starting jackd:
(jackd/12427): 10882us non-preemptible critical section violated 400 us preempt threshold starting at kernel_fpu_begin+0x10/0x60 and ending at fast_clear_page+0x75/0xa0 [<c0106777>] dump_stack+0x17/0x20 [<c01140eb>] sub_preempt_count+0x4b/0x60 [<c01d1585>] fast_clear_page+0x75/0xa0 [<c013ea86>] do_anonymous_page+0x86/0x180 [<c013ebd0>] do_no_page+0x50/0x300 [<c013f041>] handle_mm_fault+0xc1/0x170 [<c013da33>] get_user_pages+0x133/0x3d0 [<c013f198>] make_pages_present+0x68/0x90 [<c0140948>] do_mmap_pgoff+0x3f8/0x640 [<c010b7f6>] sys_mmap2+0x76/0xb0 [<c0106117>] syscall_call+0x7/0xb
Lee
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