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Date: Wed, 4 Apr 2007 15:10:27 -0700 From: Andrew Morton <akpm@...ux-foundation.org> To: "Antonino A. Daplas" <adaplas@...il.com> Cc: linux-kernel@...r.kernel.org, Con Kolivas <kernel@...ivas.org> Subject: Re: 2.6.21-rc5-mm4 On Thu, 05 Apr 2007 05:56:35 +0800 "Antonino A. Daplas" <adaplas@...il.com> wrote: > On Mon, 2007-04-02 at 22:47 -0700, Andrew Morton wrote: > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.21-rc5/2.6.21-rc5-mm4/ > > > > - The oops in git-net.patch has been fixed, so that tree has been restored. > > It is huge. > > > > - Added the device-mapper development tree to the -mm lineup (Alasdair > > Kergon). It is a quilt tree, living at > > ftp://ftp.kernel.org/pub/linux/kernel/people/agk/patches/2.6/editing/. > > > > - Added davidel's signalfd stuff. > > > > > > > > I'm getting a kernel panic intermittently, approximately 50% of boots. > The tracing is not always the same, but it always dies on an > atomic_bitop operation. Here are two hand-copied tracings (for the life > of me, I can't make netconsole work). > > > /---------------------------First Tracing----------------------/ > Oops: 0000 [#1] > last sysfs file: class/firmware/microcode > Modules linked in: ... > .... > ... > CPU: 0 > EIP: ... > EFLAGS:... > EIP is at find_next_zero_bit > ... > ... > ... > Process set_disk_settin > Call Trace: > show_trace_log > show_stack_log > show_register > die > do_page_fault > error_code > recalc_task_prio > activate_task > try_to_wake_up > deault_wake_function > __wake_up_common > __wake_up > sock_def_readable > soc_queue_rev_skb > udp_queue_rcv_skb > __udp4_libr_rcv > udp_rcv > ip_local_delivery > ip_rcv > netif_receive_skb > rtl8139_poll > net_rx_action > __do_soft_irq > do_softirq > irq_exit > do_IRQ > common_interrupt Thanks - that'll be the CPU scheduler changes. Con has produced a patch or two which might address this but afaik we don't yet have a definitive fix? I believe that reverting sched-implement-staircase-deadline-cpu-scheduler-staircase-improvements.patch will prevent it. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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