From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3rzsSv6pPrzDqTm for ; Wed, 27 Jul 2016 20:59:43 +1000 (AEST) Received: from pps.filterd (m0098399.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.11/8.16.0.11) with SMTP id u6RAs7Y7143831 for ; Wed, 27 Jul 2016 06:59:41 -0400 Received: from e33.co.us.ibm.com (e33.co.us.ibm.com [32.97.110.151]) by mx0a-001b2d01.pphosted.com with ESMTP id 24dvp8dngg-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 27 Jul 2016 06:59:40 -0400 Received: from localhost by e33.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 27 Jul 2016 04:59:40 -0600 From: Abdul Haleem Subject: [PowerPC] Kernel OOPS while compiling LTP test suite on linus mainline To: linuxppc-dev@lists.ozlabs.org Cc: linux-kernel@vger.kernel.org, mpe@ellerman.id.au, ego@linux.vnet.ibm.com, aneesh.kumar@linux.vnet.ibm.com Date: Wed, 27 Jul 2016 16:29:33 +0530 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="------------1EE9E6E3A12A9F5B373B18EB" Message-Id: <7b06e366-c90e-7d56-acf2-8f6f1a98ffd0@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This is a multi-part message in MIME format. --------------1EE9E6E3A12A9F5B373B18EB Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Hi, Kernel OOPS messages were seen while compiling linux test project (LTP) source on4.7.0-rc5 mainline. kernel config : pseries_le_defconfig machine Type : PowerVM LPAR trace messages: *15:34:57* [ 862.548866] Unable to handle kernel paging request for data at address 0x00000000 *15:34:57* [ 862.548904] Faulting instruction address: 0xc000000000260900 *15:34:57* [ 862.548911] Oops: Kernel access of bad area, sig: 11 [#1] *15:34:57* [ 862.548917] SMP NR_CPUS=2048 NUMA pSeries *15:34:57* [ 862.548924] Modules linked in: rtc_generic(E) pseries_rng(E) autofs4(E) *15:34:57* [ 862.548938] CPU: 0 PID: 129 Comm: kswapd2 Tainted: G E 4.7.0-rc5-autotest #1 *15:34:57* [ 862.548946] task: c0000007766a2600 ti: c000000776764000 task.ti: c000000776764000 *15:34:57* [ 862.548953] NIP: c000000000260900 LR: c00000000026452c CTR: 0000000000000000 *15:34:57* [ 862.548961] REGS: c000000776767830 TRAP: 0300 Tainted: G E (4.7.0-rc5-autotest) *15:34:57* [ 862.548968] MSR: 800000010280b033 CR: 24000222 XER: 20000001 *15:34:57* [ 862.548996] CFAR: c000000000008468 DAR: 0000000000000000 DSISR: 40000000 SOFTE: 0 *15:34:57* GPR00: c00000000026452c c000000776767ab0 c0000000013ac100 c00000077ff54200 *15:34:57* GPR04: 0000000000000000 c000000776767ba0 0000000000000001 c00000000151c100 *15:34:57* GPR08: 0000000000000000 00000000000b4057 0000000080000000 c00000071664b7a0 *15:34:57* GPR12: 0000000000000000 c00000000e800000 0000000000000001 f0000000015dc000 *15:34:57* GPR16: c00000077ff54700 0000000000000000 0000000000000000 c00000077ff54700 *15:34:57* GPR20: 0000000000000001 0000000000000100 0000000000000200 c00000077ff54200 *15:34:57* GPR24: c000000776767ba0 0000000000000020 0000000000000000 0000000000000001 *15:34:57* GPR28: 0000000000000010 0000000000000000 c000000776767ba0 f0000000015dc020 *15:34:57* [ 862.549094] NIP [c000000000260900] move_active_pages_to_lru.isra.16+0xa0/0x380 *15:34:57* [ 862.549102] LR [c00000000026452c] shrink_active_list+0x2fc/0x510 *15:34:57* [ 862.549108] Call Trace: *15:34:57* [ 862.549112] [c000000776767ab0] [f0000000015dc000] 0xf0000000015dc000 (unreliable) *15:34:57* [ 862.549122] [c000000776767b60] [c00000000026452c] shrink_active_list+0x2fc/0x510 *15:34:57* [ 862.549131] [c000000776767c50] [c0000000002665d4] kswapd+0x434/0xa70 *15:34:57* [ 862.549139] [c000000776767d80] [c0000000000f1b50] kthread+0x110/0x130 *15:34:57* [ 862.549148] [c000000776767e30] [c0000000000095f0] ret_from_kernel_thread+0x5c/0x6c *15:34:57* [ 862.549155] Instruction dump: *15:34:57* [ 862.549161] 60000000 3b200020 3a800001 7b7c26e4 3aa00100 3ac00200 3a400000 3a770500 *15:34:57* [ 862.549174] 3a200000 60000000 60000000 60420000 7fbd4840 419e01b8 ebfd0008 *15:34:57* [ 862.549193] ---[ end trace fcc50906d9164c56 ]--- *15:34:57* [ 862.550562] *15:35:18* [ 883.551577] INFO: rcu_sched self-detected stall on CPU *15:35:18* [ 883.551578] INFO: rcu_sched self-detected stall on CPU *15:35:18* [ 883.551588] 2-...: (5249 ticks this GP) idle=cc5/140000000000001/0 softirq=50260/50260 fqs=5249 *15:35:18* [ 883.551591] (t=5250 jiffies g=48365 c=48364 q=182) Regard's Abdul --------------1EE9E6E3A12A9F5B373B18EB Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit 

Hi, 

Kernel OOPS messages were seen while compiling linux test project (LTP) source on 4.7.0-rc5 mainline.

kernel config : pseries_le_defconfig
machine Type  : PowerVM LPAR
trace messages:
15:34:57 [  862.548866] Unable to handle kernel paging request for data at address 0x00000000
15:34:57 [  862.548904] Faulting instruction address: 0xc000000000260900
15:34:57 [  862.548911] Oops: Kernel access of bad area, sig: 11 [#1]
15:34:57 [  862.548917] SMP NR_CPUS=2048 NUMA pSeries
15:34:57 [  862.548924] Modules linked in: rtc_generic(E) pseries_rng(E) autofs4(E)
15:34:57 [  862.548938] CPU: 0 PID: 129 Comm: kswapd2 Tainted: G            E   4.7.0-rc5-autotest #1
15:34:57 [  862.548946] task: c0000007766a2600 ti: c000000776764000 task.ti: c000000776764000
15:34:57 [  862.548953] NIP: c000000000260900 LR: c00000000026452c CTR: 0000000000000000
15:34:57 [  862.548961] REGS: c000000776767830 TRAP: 0300   Tainted: G            E    (4.7.0-rc5-autotest)
15:34:57 [  862.548968] MSR: 800000010280b033 <SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE,TM[E]>  CR: 24000222  XER: 20000001
15:34:57 [  862.548996] CFAR: c000000000008468 DAR: 0000000000000000 DSISR: 40000000 SOFTE: 0 
15:34:57 GPR00: c00000000026452c c000000776767ab0 c0000000013ac100 c00000077ff54200 
15:34:57 GPR04: 0000000000000000 c000000776767ba0 0000000000000001 c00000000151c100 
15:34:57 GPR08: 0000000000000000 00000000000b4057 0000000080000000 c00000071664b7a0 
15:34:57 GPR12: 0000000000000000 c00000000e800000 0000000000000001 f0000000015dc000 
15:34:57 GPR16: c00000077ff54700 0000000000000000 0000000000000000 c00000077ff54700 
15:34:57 GPR20: 0000000000000001 0000000000000100 0000000000000200 c00000077ff54200 
15:34:57 GPR24: c000000776767ba0 0000000000000020 0000000000000000 0000000000000001 
15:34:57 GPR28: 0000000000000010 0000000000000000 c000000776767ba0 f0000000015dc020 
15:34:57 [  862.549094] NIP [c000000000260900] move_active_pages_to_lru.isra.16+0xa0/0x380
15:34:57 [  862.549102] LR [c00000000026452c] shrink_active_list+0x2fc/0x510
15:34:57 [  862.549108] Call Trace:
15:34:57 [  862.549112] [c000000776767ab0] [f0000000015dc000] 0xf0000000015dc000 (unreliable)
15:34:57 [  862.549122] [c000000776767b60] [c00000000026452c] shrink_active_list+0x2fc/0x510
15:34:57 [  862.549131] [c000000776767c50] [c0000000002665d4] kswapd+0x434/0xa70
15:34:57 [  862.549139] [c000000776767d80] [c0000000000f1b50] kthread+0x110/0x130
15:34:57 [  862.549148] [c000000776767e30] [c0000000000095f0] ret_from_kernel_thread+0x5c/0x6c
15:34:57 [  862.549155] Instruction dump:
15:34:57 [  862.549161] 60000000 3b200020 3a800001 7b7c26e4 3aa00100 3ac00200 3a400000 3a770500 
15:34:57 [  862.549174] 3a200000 60000000 60000000 60420000 <e93d0000> 7fbd4840 419e01b8 ebfd0008 
15:34:57 [  862.549193] ---[ end trace fcc50906d9164c56 ]---
15:34:57 [  862.550562] 
15:35:18 [  883.551577] INFO: rcu_sched self-detected stall on CPU
15:35:18 [  883.551578] INFO: rcu_sched self-detected stall on CPU
15:35:18 [  883.551588] 	2-...: (5249 ticks this GP) idle=cc5/140000000000001/0 softirq=50260/50260 fqs=5249 
15:35:18 [  883.551591] 	 (t=5250 jiffies g=48365 c=48364 q=182)

Regard's
Abdul


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