From: Dhaval Giani <dhaval-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
To: kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org
Cc: Peter Zijlstra
<a.p.zijlstra-/NLkJaSkS4VmR6Xm/wNWPw@public.gmane.org>,
vatsa-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org,
Dmitry Adamushko
<dmitry.adamushko-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
containers-qjLDD68F18O7TbgM5vRIOg@public.gmane.org,
Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org>,
Andrew Morton
<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
Subject: Re: Re: Hang with fair cgroup scheduler (reproducer is attached.)
Date: Fri, 14 Dec 2007 21:08:23 +0530 [thread overview]
Message-ID: <20071214153823.GC23670@linux.vnet.ibm.com> (raw)
In-Reply-To: <20071214153607.GB23670-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
On Fri, Dec 14, 2007 at 09:06:07PM +0530, Dhaval Giani wrote:
> On Fri, Dec 14, 2007 at 11:24:28PM +0900, kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org wrote:
> > >> just to be sure SMP does matter here (most likely yes, I guess).
> > >>
> > >
> > >NUMA? I am not able to reproduce it here locally on an x86 8 CPU box.
> > >
> > yes. I used NUMA. 2 Nodes/4CPU x 2
> >
>
> OK, I got hold of an IA64 box, non numa and have managed to reproduce
> it.
>
Actually no, its another bug. Thanks for the program!
reg[3330]: NaT consumption 2216203124768 [1]
Modules linked in: ipv6 button binfmt_misc nls_iso8859_1 loop dm_mod tg3
ext3 jbd fan thermal processor sg mptspi mptscsih mptbase
scsi_transport_spi via82cxxx sd_mod scsi_mod ide_disk ide_core
Pid: 3330, CPU 3, comm: reg
psr : 00001210085a2010 ifs : 8000000000000308 ip : [<a0000001002e0481>]
Not tainted
ip is at rb_erase+0x301/0x7e0
unat: 0000000000000000 pfs : 0000000000000308 rsc : 0000000000000003
rnat: 0000000000000000 bsps: 0000000000000000 pr : a5565666a9556959
ldrs: 0000000000000000 ccv : 0000000000000000 fpsr: 0009804c0270033f
csd : 0000000000000000 ssd : 0000000000000000
b0 : a000000100076290 b6 : a000000100086b20 b7 : a000000100076360
f6 : 1003e0000000000000d34 f7 : 1003e000000000000000a
f8 : 1003e0000000000000000 f9 : 1003e0000000000000152
f10 : 1003e0000000000000004 f11 : 0fff2fffffffff0000000
r1 : a000000100c92030 r2 : e000000244bd0068 r3 : e000000245882000
r8 : e000000245882000 r9 : e000000241e6eda0 r10 : 0000000000000001
r11 : e0000002458f0070 r12 : e0000002458a7d80 r13 : e0000002458a0000
r14 : e000000244bd0060 r15 : e000000244bd0058 r16 : 0000000000000000
r17 : e000000245920d34 r18 : 0000000000000000 r19 : 0000000000000000
r20 : e000000245920c90 r21 : 0000000000000001 r22 : a000000100076360
r23 : a000000100a7f2f8 r24 : a000000100a7f2b0 r25 : e0000002458c0058
r26 : e000000004e05b10 r27 : 0000000000000001 r28 : 0000000000000000
r29 : a000000100a7f2e0 r30 : a000000100a7f2b0 r31 : e000000245920098
Call Trace:
[<a000000100014a80>] show_stack+0x40/0xa0
sp=e0000002458a77d0 bsp=e0000002458a1310
[<a000000100015380>] show_regs+0x840/0x880
sp=e0000002458a79a0 bsp=e0000002458a12b8
[<a0000001000384a0>] die+0x1a0/0x2a0
sp=e0000002458a79a0 bsp=e0000002458a1270
[<a0000001000385f0>] die_if_kernel+0x50/0x80
sp=e0000002458a79a0 bsp=e0000002458a1240
[<a0000001005b1a80>] ia64_fault+0x1180/0x12a0
sp=e0000002458a79a0 bsp=e0000002458a11e0
[<a00000010000b2a0>] ia64_leave_kernel+0x0/0x270
sp=e0000002458a7bb0 bsp=e0000002458a11e0
[<a0000001002e0480>] rb_erase+0x300/0x7e0
sp=e0000002458a7d80 bsp=e0000002458a11a0
[<a000000100076290>] __dequeue_entity+0x70/0xa0
sp=e0000002458a7d80 bsp=e0000002458a1170
[<a000000100076300>] set_next_entity+0x40/0xa0
sp=e0000002458a7d80 bsp=e0000002458a1148
[<a0000001000763a0>] set_curr_task_fair+0x40/0xa0
sp=e0000002458a7d80 bsp=e0000002458a1128
[<a000000100078d90>] sched_move_task+0x2d0/0x340
sp=e0000002458a7d80 bsp=e0000002458a10e8
[<a000000100078e20>] cpu_cgroup_attach+0x20/0x40
sp=e0000002458a7d90 bsp=e0000002458a10b0
[<a0000001000e9370>] attach_task+0x9b0/0xac0
sp=e0000002458a7d90 bsp=e0000002458a1058
[<a0000001000ed4e0>] cgroup_common_file_write+0x340/0x520
sp=e0000002458a7dc0 bsp=e0000002458a1010
[<a0000001000eccd0>] cgroup_file_write+0xf0/0x300
sp=e0000002458a7dd0 bsp=e0000002458a0fc0
[<a00000010017bbd0>] vfs_write+0x1d0/0x320
sp=e0000002458a7e20 bsp=e0000002458a0f70
[<a00000010017c7f0>] sys_write+0x70/0xe0
sp=e0000002458a7e20 bsp=e0000002458a0ef8
[<a00000010000b100>] ia64_ret_from_syscall+0x0/0x20
sp=e0000002458a7e30 bsp=e0000002458a0ef8
[<a000000000010720>] __kernel_syscall_via_break+0x0/0x20
sp=e0000002458a8000 bsp=e0000002458a0ef8
--
regards,
Dhaval
next prev parent reply other threads:[~2007-12-14 15:38 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-14 7:18 Hang with fair cgroup scheduler (reproducer is attached.) KAMEZAWA Hiroyuki
[not found] ` <20071214161834.034e6efe.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2007-12-14 8:17 ` KAMEZAWA Hiroyuki
[not found] ` <20071214171759.59f7ba57.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2007-12-14 9:49 ` Ingo Molnar
[not found] ` <20071214094909.GG11266-X9Un+BFzKDI@public.gmane.org>
2007-12-14 10:58 ` KAMEZAWA Hiroyuki
[not found] ` <20071214195837.0d3511db.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2007-12-14 11:48 ` Dhaval Giani
2007-12-14 12:47 ` Dmitry Adamushko
[not found] ` <20071214141528.GA6161-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2007-12-14 14:24 ` kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A
[not found] ` <20442799.1197642268756.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2007-12-14 15:36 ` Dhaval Giani
[not found] ` <20071214153607.GB23670-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2007-12-14 15:38 ` Dhaval Giani [this message]
[not found] ` <20071214153823.GC23670-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2007-12-14 16:25 ` Dmitry Adamushko
[not found] ` <b647ffbd0712140825h4f541be0xa7a7866e70b3af7a-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2007-12-14 19:51 ` Dmitry Adamushko
[not found] ` <b647ffbd0712141151k697d9bbemda9a7e90515e4400-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2007-12-14 21:33 ` Steven Rostedt
[not found] ` <Pine.LNX.4.58.0712141614340.22005-f9ZlEuEWxVcI6MkJdU+c8EEOCMrvLtNR@public.gmane.org>
2007-12-15 10:22 ` Dmitry Adamushko
[not found] ` <b647ffbd0712150222p30cac9f9i772c2a2c4e05a4a-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2007-12-15 10:50 ` Dhaval Giani
[not found] ` <20071215105036.GB26325-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2007-12-15 11:15 ` Dmitry Adamushko
2007-12-15 23:44 ` Dmitry Adamushko
[not found] ` <b647ffbd0712151544n2dfad101r2d306d393e8550ff-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2007-12-16 0:00 ` Dmitry Adamushko
[not found] ` <b647ffbd0712151600s14e3f355we5ee6348b4d484cc-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2007-12-16 4:28 ` Dhaval Giani
[not found] ` <20071216042821.GA8494-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2007-12-17 1:12 ` KAMEZAWA Hiroyuki
[not found] ` <20071217101245.76562518.kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
2007-12-17 14:45 ` Ingo Molnar
2007-12-16 8:55 ` Ingo Molnar
[not found] ` <20071216085559.GB20790-X9Un+BFzKDI@public.gmane.org>
2007-12-16 10:06 ` Dmitry Adamushko
[not found] ` <b647ffbd0712140447kfba5945ybde40f18653dd164-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2007-12-14 12:50 ` kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A
2007-12-14 14:15 ` Dhaval Giani
2007-12-14 9:48 ` Ingo Molnar
-- strict thread matches above, loose matches on Subject: below --
2007-12-16 13:01 Dmitry Adamushko
2007-12-16 15:32 ` Steven Rostedt
2007-12-16 23:17 ` Steven Rostedt
[not found] ` <Pine.LNX.4.58.0712161801590.27494-f9ZlEuEWxVcI6MkJdU+c8EEOCMrvLtNR@public.gmane.org>
2007-12-17 10:23 ` Dmitry Adamushko
[not found] ` <b647ffbd0712170223n13509130s7850c081f3b6c1e-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2007-12-17 17:58 ` Steven Rostedt
[not found] ` <Pine.LNX.4.58.0712171227230.5678-f9ZlEuEWxVcI6MkJdU+c8EEOCMrvLtNR@public.gmane.org>
2007-12-17 22:52 ` Dmitry Adamushko
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