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<pre style="box-sizing: border-box; white-space: pre-wrap; word-wrap: break-word; margin: 0px; color: rgb(51, 51, 51); font-size: 13px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 18.2px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px;">Hi,
Kernel OOPS messages were seen while compiling linux test project (LTP) source on <meta http-equiv="content-type" content="text/html; charset=utf-8">4.7.0-rc5 mainline.<pre style="box-sizing: border-box; white-space: pre-wrap; word-wrap: break-word; margin: 0px; color: rgb(51, 51, 51); font-size: 13px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 18.2px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px;"></pre>
kernel config : pseries_le_defconfig
machine Type : PowerVM LPAR
trace messages:
<meta http-equiv="content-type" content="text/html; charset=utf-8"><span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.548866] Unable to handle kernel paging request for data at address 0x00000000
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.548904] Faulting instruction address: 0xc000000000260900
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.548911] Oops: Kernel access of bad area, sig: 11 [#1]
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.548917] SMP NR_CPUS=2048 NUMA pSeries
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.548924] Modules linked in: rtc_generic(E) pseries_rng(E) autofs4(E)
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.548938] CPU: 0 PID: 129 Comm: kswapd2 Tainted: G E 4.7.0-rc5-autotest #1
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.548946] task: c0000007766a2600 ti: c000000776764000 task.ti: c000000776764000
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.548953] NIP: c000000000260900 LR: c00000000026452c CTR: 0000000000000000
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.548961] REGS: c000000776767830 TRAP: 0300 Tainted: G E (4.7.0-rc5-autotest)
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.548968] MSR: 800000010280b033 <SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE,TM[E]> CR: 24000222 XER: 20000001
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.548996] CFAR: c000000000008468 DAR: 0000000000000000 DSISR: 40000000 SOFTE: 0
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>GPR00: c00000000026452c c000000776767ab0 c0000000013ac100 c00000077ff54200
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>GPR04: 0000000000000000 c000000776767ba0 0000000000000001 c00000000151c100
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>GPR08: 0000000000000000 00000000000b4057 0000000080000000 c00000071664b7a0
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>GPR12: 0000000000000000 c00000000e800000 0000000000000001 f0000000015dc000
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>GPR16: c00000077ff54700 0000000000000000 0000000000000000 c00000077ff54700
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>GPR20: 0000000000000001 0000000000000100 0000000000000200 c00000077ff54200
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>GPR24: c000000776767ba0 0000000000000020 0000000000000000 0000000000000001
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>GPR28: 0000000000000010 0000000000000000 c000000776767ba0 f0000000015dc020
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.549094] NIP [c000000000260900] move_active_pages_to_lru.isra.16+0xa0/0x380
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.549102] LR [c00000000026452c] shrink_active_list+0x2fc/0x510
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.549108] Call Trace:
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.549112] [c000000776767ab0] [f0000000015dc000] 0xf0000000015dc000 (unreliable)
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.549122] [c000000776767b60] [c00000000026452c] shrink_active_list+0x2fc/0x510
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.549131] [c000000776767c50] [c0000000002665d4] kswapd+0x434/0xa70
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.549139] [c000000776767d80] [c0000000000f1b50] kthread+0x110/0x130
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.549148] [c000000776767e30] [c0000000000095f0] ret_from_kernel_thread+0x5c/0x6c
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.549155] Instruction dump:
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.549161] 60000000 3b200020 3a800001 7b7c26e4 3aa00100 3ac00200 3a400000 3a770500
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.549174] 3a200000 60000000 60000000 60420000 <e93d0000> 7fbd4840 419e01b8 ebfd0008
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.549193] ---[ end trace fcc50906d9164c56 ]---
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:34:57</b> </span>[ 862.550562]
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:35:18</b> </span>[ 883.551577] INFO: rcu_sched self-detected stall on CPU
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:35:18</b> </span>[ 883.551578] INFO: rcu_sched self-detected stall on CPU
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:35:18</b> </span>[ 883.551588] 2-...: (5249 ticks this GP) idle=cc5/140000000000001/0 softirq=50260/50260 fqs=5249
<span class="timestamp" style="box-sizing: border-box;"><b style="box-sizing: border-box;">15:35:18</b> </span>[ 883.551591] (t=5250 jiffies g=48365 c=48364 q=182)<pre style="box-sizing: border-box; white-space: pre-wrap; word-wrap: break-word; margin: 0px; color: rgb(51, 51, 51); font-size: 13px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 18.2px; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px;"></pre>
Regard's
Abdul
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