On 2007.06.04 15:55:14 +0200, Benjamin Pineau wrote: > Hi, > The stock 2.6.22-rc3 (with no alien modules or patchs) on my i386 desktops > fired this message in loop like a mad (thousands of times/second) until > reboot, for no evident reason (I mean, I don't know what I did to get this, > >from an end-user perspective : I was just editing text on vim and surfing > the web with firefox). > > The same kernel worked for several days without exposing surch a problem > and this never occured with the olders kernels I used (2.6.17, 2.6.21). > > Beside the log presure, the only symptom I noted is that reboot didn't work: > it killed X and probably most userland, but got silently stuck on the console, > without actually restarting the machine. Then, on the console, everytime I > typed a key, 2 new "BUG: scheduling ..." lines appeared. Typing ctrl-alt-del > finaly forced it to physically reboot. > > I've got more details in dmesg. Sample (full dmesg plus more > at http://oshima.zouh.org/~ben/2.6.23-rc3_bug_details.txt): > > [333259.145874] ======================= > [333259.145894] BUG: scheduling while atomic: swapper/0x00000100/0 > [333259.145906] [<c03f254c>] schedule+0x4dc/0x860 > [333259.145915] [<c0141c76>] getnstimeofday+0x36/0xd0 > [333259.145932] [<c013fcc6>] ktime_get_ts+0x16/0x50 > [333259.145941] [<c013a358>] rcu_pending+0x38/0x50 > [333259.145949] [<c013a3a2>] rcu_needs_cpu+0x32/0x40 > [333259.145964] [<c01022d0>] mwait_idle+0x0/0x20 > [333259.145974] [<c010245c>] cpu_idle+0x9c/0xe0 > [333259.145985] [<c0558a7f>] start_kernel+0x31f/0x3b0 > [333259.145994] [<c05581f0>] unknown_bootoption+0x0/0x260 > [333259.146007] ======================= > [334129.061709] BUG: scheduling while atomic: swapper/0x00000100/0 > [334129.061735] [<c03f254c>] schedule+0x4dc/0x860 > [334129.061760] [<c013f96b>] enqueue_hrtimer+0x6b/0x110 > [334129.061773] [<c0140245>] hrtimer_start+0xc5/0x130 > [334129.061785] [<c01459e1>] tick_nohz_restart_sched_tick+0xf1/0x140 > [334129.061796] [<c01022d0>] mwait_idle+0x0/0x20 > [334129.061806] [<c010245c>] cpu_idle+0x9c/0xe0 > [334129.061817] [<c0558a7f>] start_kernel+0x31f/0x3b0 > [334129.061827] [<c05581f0>] unknown_bootoption+0x0/0x260 > [333259.148510] ======================= > > Since I see the word "time" there : note I have NO_HZ, HIGH_RES_TIMERS, > TIMER_STATS and HPET (but according to /proc/timer_list, hpet is not active), > but no IRQ_BALANCE. > And for the boot options (?), /proc/cmdline is : > root=UUID=349f275c-a633-4d1d-8ab7-b3a75d67dc51 ro locale=fr_FR > > lspci -vv, lspci -vn, /proc/config.gz, /proc/timer_list, lsmod, > /proc/interrupts, /proc/vmstat, ps auxf, and dmesg (with and > without the bug's logs) outputs at > http://oshima.zouh.org/~ben/2.6.23-rc3_bug_details.txt
To save somebody else from guessing, that's HIRoshima, i.e. the correct URL is http://hiroshima.zouh.org/~ben/2.6.23-rc3_bug_details.txt ;-) Björn - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
