Messages in this thread | | | Subject | RE: 2.6.23.8, ondemand scaling governor: "BUG: soft lockup detected on CPU#0!" | Date | Tue, 20 Nov 2007 06:29:27 -0800 | From | "Pallipadi, Venkatesh" <> |
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>-----Original Message----- >From: Harald Dunkel [mailto:harald.dunkel@t-online.de] >Sent: Tuesday, November 20, 2007 12:17 AM >To: Pallipadi, Venkatesh >Cc: Linux Kernel list >Subject: Re: 2.6.23.8, ondemand scaling governor: "BUG: soft >lockup detected on CPU#0!" > >Pallipadi, Venkatesh wrote: >> >> Can you try switching to powersave governor (which should >always run CPU >> at 400MHz) and see whether you see similar error? >> > >Yes, if I move from performance to powersave, then I see a similar >error: > >Nov 20 09:06:48 bugs kernel: BUG: soft lockup detected on CPU#0! >Nov 20 09:06:48 bugs kernel: [<c013cf8d>] softlockup_tick+0x91/0xa6 >Nov 20 09:06:48 bugs kernel: [<c012269c>] >update_process_times+0x3a/0x5d >Nov 20 09:06:48 bugs kernel: [<c0131219>] tick_sched_timer+0x115/0x164 >Nov 20 09:06:48 bugs kernel: [<c012d311>] >hrtimer_interrupt+0x102/0x191 >Nov 20 09:06:48 bugs kernel: [<c0106cd6>] timer_interrupt+0x2e/0x34 >Nov 20 09:06:48 bugs kernel: [<c013d1f6>] handle_IRQ_event+0x1a/0x3f >Nov 20 09:06:48 bugs kernel: [<c013e4e1>] handle_level_irq+0xa8/0xb7 >Nov 20 09:06:48 bugs kernel: [<c0106367>] do_IRQ+0x53/0x6c >Nov 20 09:06:48 bugs kernel: [<c0104853>] common_interrupt+0x23/0x28 >Nov 20 09:06:48 bugs kernel: ======================= > >
This looks like TSC related issue. Ingo's patch commit id a3b13c23f186ecb57204580cc1f2dbe9c284953a http://git.kernel.org/gitweb.cgi?p=linux/kernel/git/torvalds/linux-2.6.g it;a=commit;h=a3b13c23f186ecb57204580cc1f2dbe9c284953a should help.
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