From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx155.postini.com [74.125.245.155]) by kanga.kvack.org (Postfix) with SMTP id C41E86B0002 for ; Sun, 14 Apr 2013 23:28:41 -0400 (EDT) Date: Sun, 14 Apr 2013 23:28:40 -0400 (EDT) From: Zhouping Liu Message-ID: <2068164110.268217.1365996520440.JavaMail.root@redhat.com> In-Reply-To: <156480624.266924.1365995933797.JavaMail.root@redhat.com> Subject: [BUG][s390x] mm: system crashed MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org, LKML Cc: caiqian , Caspar Zhang Hi All, I hit the below crashed when doing memory related tests[1] on s390x: --------------- snip --------------------- =EF=BF=BD 15929.351639=C2=A8 =EF=BF=BD <000000000021c0a6>=C2=A8 shrink_ina= ctive_list+0x1c6/0x56c=20 =EF=BF=BD 15929.351647=C2=A8 =EF=BF=BD <000000000021c69e>=C2=A8 shrink_lru= vec+0x252/0x56c=20 =EF=BF=BD 15929.351654=C2=A8 =EF=BF=BD <000000000021ca44>=C2=A8 shrink_zon= e+0x8c/0x1bc=20 =EF=BF=BD 15929.351662=C2=A8 =EF=BF=BD <000000000021d080>=C2=A8 balance_pg= dat+0x50c/0x658=20 =EF=BF=BD 15929.351671=C2=A8 =EF=BF=BD <000000000021d318>=C2=A8 kswapd+0x1= 4c/0x470=20 =EF=BF=BD 15929.351680=C2=A8 =EF=BF=BD <0000000000158292>=C2=A8 kthread+0x= da/0xe4=20 =EF=BF=BD 15929.351690=C2=A8 =EF=BF=BD <000000000062a5de>=C2=A8 kernel_thr= ead_starter+0x6/0xc=20 =EF=BF=BD 15929.351700=C2=A8 =EF=BF=BD <000000000062a5d8>=C2=A8 kernel_thr= ead_starter+0x0/0xc=20 =EF=BF=BD 16109.346061=C2=A8 INFO: rcu_sched self-detected stall on CPU { 0= } (t=3D24006 jiffies=20 g=3D89766 c=3D89765 q=3D10544)=20 =EF=BF=BD 16109.346101=C2=A8 CPU: 0 Tainted: G D 3.9.0-rc6+ #1=20 =EF=BF=BD 16109.346106=C2=A8 Process kswapd0 (pid: 28, task: 000000003b2a00= 00, ksp: 000000003b=20 2ab8c0)=20 =EF=BF=BD 16109.346110=C2=A8 000000000001bb60 000000000001bb70 00000= 00000000002 0000000=20 000000000=20 000000000001bc00 000000000001bb78 000000000001bb78 00000000001009ca= =20 0000000000000000 0000000000002930 000000000000000a 000000000000000a= =20 000000000001bbc0 000000000001bb60 0000000000000000 0000000000000000= =20 000000000063bb18 00000000001009ca 000000000001bb60 000000000001bbb0= =20 =EF=BF=BD 16109.346170=C2=A8 Call Trace:=20 =EF=BF=BD 16109.346179=C2=A8 (=EF=BF=BD <0000000000100920>=C2=A8 show_trace= +0x128/0x12c)=20 =EF=BF=BD 16109.346195=C2=A8 =EF=BF=BD <00000000001cd320>=C2=A8 rcu_check_= callbacks+0x458/0xccc=20 =EF=BF=BD 16109.346209=C2=A8 =EF=BF=BD <0000000000140f2e>=C2=A8 update_pro= cess_times+0x4a/0x74=20 =EF=BF=BD 16109.346222=C2=A8 =EF=BF=BD <0000000000199452>=C2=A8 tick_sched= _handle.isra.12+0x5e/0x70=20 =EF=BF=BD 16109.346235=C2=A8 =EF=BF=BD <00000000001995aa>=C2=A8 tick_sched= _timer+0x6a/0x98=20 =EF=BF=BD 16109.346247=C2=A8 =EF=BF=BD <000000000015c1ea>=C2=A8 __run_hrti= mer+0x8e/0x200=20 =EF=BF=BD 16109.346381=C2=A8 =EF=BF=BD <000000000015d1b2>=C2=A8 hrtimer_in= terrupt+0x212/0x2b0=20 =EF=BF=BD 16109.346385=C2=A8 =EF=BF=BD <00000000001040f6>=C2=A8 clock_comp= arator_work+0x4a/0x54=20 =EF=BF=BD 16109.346390=C2=A8 =EF=BF=BD <000000000010d658>=C2=A8 do_extint+= 0x158/0x15c=20 =EF=BF=BD 16109.346396=C2=A8 =EF=BF=BD <000000000062aa24>=C2=A8 ext_skip+0= x38/0x3c=20 =EF=BF=BD 16109.346404=C2=A8 =EF=BF=BD <00000000001153c8>=C2=A8 smp_yield_= cpu+0x44/0x48=20 =EF=BF=BD 16109.346412=C2=A8 (=EF=BF=BD <000003d10051aec0>=C2=A8 0x3d10051a= ec0)=20 =EF=BF=BD 16109.346457=C2=A8 =EF=BF=BD <000000000024206a>=C2=A8 __page_che= ck_address+0x16a/0x170=20 =EF=BF=BD 16109.346466=C2=A8 =EF=BF=BD <00000000002423a2>=C2=A8 page_refer= enced_one+0x3e/0xa0=20 =EF=BF=BD 16109.346501=C2=A8 =EF=BF=BD <000000000024427c>=C2=A8 page_refer= enced+0x32c/0x41c=20 =EF=BF=BD 16109.346510=C2=A8 =EF=BF=BD <000000000021b1dc>=C2=A8 shrink_pag= e_list+0x380/0xb9c=20 =EF=BF=BD 16109.346521=C2=A8 =EF=BF=BD <000000000021c0a6>=C2=A8 shrink_ina= ctive_list+0x1c6/0x56c=20 =EF=BF=BD 16109.346532=C2=A8 =EF=BF=BD <000000000021c69e>=C2=A8 shrink_lru= vec+0x252/0x56c=20 =EF=BF=BD 16109.346542=C2=A8 =EF=BF=BD <000000000021ca44>=C2=A8 shrink_zon= e+0x8c/0x1bc=20 =EF=BF=BD 16109.346553=C2=A8 =EF=BF=BD <000000000021d080>=C2=A8 balance_pg= dat+0x50c/0x658=20 =EF=BF=BD 16109.346564=C2=A8 =EF=BF=BD <000000000021d318>=C2=A8 kswapd+0x1= 4c/0x470=20 =EF=BF=BD 16109.346576=C2=A8 =EF=BF=BD <0000000000158292>=C2=A8 kthread+0x= da/0xe4=20 =EF=BF=BD 16109.346656=C2=A8 =EF=BF=BD <000000000062a5de>=C2=A8 kernel_thr= ead_starter+0x6/0xc=20 =EF=BF=BD 16109.346682=C2=A8 =EF=BF=BD <000000000062a5d8>=C2=A8 kernel_thr= ead_starter+0x0/0xc=20 [-- MARK -- Fri Apr 12 06:15:00 2013]=20 =EF=BF=BD 16289.386061=C2=A8 INFO: rcu_sched self-detected stall on CPU { 0= } (t=3D42010 jiffies=20 g=3D89766 c=3D89765 q=3D10627)=20 -------------- snip ---------------------- The testing system has 1Gb RAM, kernel is new latest mainline. please let me know if you need any more info. [1] reproducer is come from LTP: https://github.com/linux-test-project/ltp/= blob/master/testcases/kernel/mem/mtest06/mmap2.c and execute it using this command: `./mmap2 -x 0.002 -a -p` --=20 Thanks, Zhouping -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org