> -----Original Message----- > From: Xie, ChanglongX > Sent: Tuesday, March 12, 2013 10:28 PM > To: Brown, Len > Cc: Daniel Lezcano; linux-acpi@xxxxxxxxxxxxxxx; lkp@xxxxxxxxxxxxxxx > Subject: Commit ac3ebafa81a makes NHM EX/EP machines hung out since 3.9- > rc1 > > Hi Len, > > FYI, since 3.9-rc1 our three NHM EP/EX LKP(linux kernel > performance) test servers > except SNB/IVB/WSM hung up unexpectly. > > We did git bisect for about 8 times on all servers, it said that > the first bad commit is ac3ebafa. > > commit ac3ebafa81af76d65e4fb45c6388f08e90ddcc6d > Author: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx> > Date: Mon Feb 4 22:44:43 2013 +0000 > > ACPI / idle: remove usage of the statedata > > Len Brown sent a patch to remove this field in the intel_idle > driver. > The other user of this field is the davinci cpuidle driver and a > patch has been sent to remove the usage of it. > This patch removes the last user of this field. > > Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx> > Signed-off-by: Len Brown <len.brown@xxxxxxxxx> > > > More, all machines hung with following similar info. Would you > please have a look at it? > > 178748 ^[%Gmodprobe (1602) used greatest stack depth: 5504 bytes > left^M > 2178749 modprobe (1606) used greatest stack depth: 5472 bytes > left^M > > 2178751 Task dump for CPU 1:^M > 2178752 swapper/1 R running task 6736 0 1 > 0x00000000^M > 2178753 ffff8801e8029dc8 ffffffff8101cf96 ffff8801e8029e28 > ffffffff813d294b^M > 2178754 0000000000000f99 0000000000000003 00000000003cf654 > 0000000025c17d03^M > 2178755 ffff8801e8029e38 ffff8801e74fc000 00000002590dc5c4 > ffffffff8163cdb0^M > 2178756 Call Trace:^M > 2178757 [<ffffffff8101cf96>] ? > acpi_processor_ffh_cstate_enter+0x2d/0x2f^M > 2178758 [<ffffffff813d294b>] acpi_idle_enter_bm+0x1b1/0x236^M > 2178759 [<ffffffff8163cdb0>] ? disable_cpuidle+0x10/0x10^M > 2178760 [<ffffffff8163cdc2>] cpuidle_enter+0x12/0x14^M > 2178761 [<ffffffff8163d286>] cpuidle_wrap_enter+0x2f/0x6d^M > 2178762 [<ffffffff8163d2d4>] cpuidle_enter_tk+0x10/0x12^M > 2178763 [<ffffffff8163cdd6>] cpuidle_enter_state+0x12/0x3a^M > 2178764 [<ffffffff8163d4a7>] cpuidle_idle_call+0xe8/0x161^M > 2178765 [<ffffffff81008d99>] cpu_idle+0x5e/0xa4^M > 2178766 [<ffffffff8174c6c1>] start_secondary+0x1a9/0x1ad^M > 2178767 Task dump for CPU 2:^M Hmm, is it possible that the nth CPU is trying to use an idle state before acpi_cstate[] is initialized? Does bootin with maxcpus=1 work fine? how about booting with processor.max_cstate=1? -Len > > Best regards > Changlong Xie > > --- > Linux Kernel Performance (LKP) project Open Source Technology > Center > Intel CorporationIntel Corporation -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
