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Message-ID: <20070605093349.GA24956@elte.hu> Date: Tue, 5 Jun 2007 11:33:49 +0200 From: Ingo Molnar <mingo@...e.hu> To: Andrew Morton <akpm@...ux-foundation.org> Cc: linux-kernel@...r.kernel.org Subject: Re: 2.6.22-rc3-mm1 * Andrew Morton <akpm@...ux-foundation.org> wrote: > On Tue, 5 Jun 2007 11:11:51 +0200 Ingo Molnar <mingo@...e.hu> wrote: > > > hm, mm1 hangs during bootup on one of my boxes: > > > > Calling initcall 0xc0628d39: pci_mmcfg_late_insert_resources+0x0/0x44() > > initcall 0xc0628d39: pci_mmcfg_late_insert_resources+0x0/0x44() returned 0. > > initcall 0xc0628d39 ran for 0 msecs: > > pci_mmcfg_late_insert_resources+0x0/0x44() > > Calling initcall 0xc062abd1: tcp_congestion_default+0x0/0xf() > > initcall 0xc062abd1: tcp_congestion_default+0x0/0xf() returned 0. > > initcall 0xc062abd1 ran for 0 msecs: tcp_congestion_default+0x0/0xf() > > > > it usually hangs in different places. > > In my experience that means that it wedged in a timer tick. Often the > first one. yeah. I tried !hres and !dynticks too and that doesnt make any difference to the end result - so my guess is on the NMI watchdog re-programming thing on K8 CPUs (running the 32-bit kernel), which is done in every NMI tick. check_watchdog() for some reason thought there's no NMI, and later on an NMI still arrived? Something like that. vanilla kernel works fine. Ingo - 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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