This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1718107
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1718107
Title:
brk_near_huge test will hang on IBM s390x zKVM / zVM
Status in linux package in Ubuntu:
Incomplete
Bug description:
Steps:
1. Clone git://kernel.ubuntu.com/ubuntu/autotest-client-tests
2. Untar libhugetlbfs/libhugetlbfs-2.20.tar.gz
3. Run `sudo BUILDTYPE=NATIVEONLY make check` in the extracted
libhugetlbfs-2.20 directory
4. Hit Ctrl + C to terminate it
From the output you will see it get stuck:
truncate_above_4GB (1024K: 64): PASS
brk_near_huge (1024K: 64): brk_near_huge: malloc.c:2427: sysmalloc:
Assertion `(old_top == initial_top (av) && old_size == 0) || ((unsigned long)
(old_size) >= MINSIZE && prev_inuse (old_top) && ((unsigned long) old_end &
(pagesize - 1)) == 0)' failed.
task-size-overrun (1024K: 64):
From the syslog you can see brk_near_huge has crashed:
Sep 19 07:28:25 s2lp6g004 rsyslogd-2007: action 'action 10' suspended, next
retry is Tue Sep 19 07:29:55 2017 [v8.16.0 try http://www.rsyslog.com/e/2007 ]
Sep 19 07:28:36 s2lp6g004 AutotestCrashHandler: Application brk_near_huge,
PID 10474 crashed
Sep 19 07:28:36 s2lp6g004 AutotestCrashHandler: Writing core files to
['/home/ubuntu/autotest/client/results/default/libhugetlbfs/debug/crash.brk_near_huge.10474']
Sep 19 07:28:36 s2lp6g004 AutotestCrashHandler: Could not determine from
which application core file
/home/ubuntu/autotest/client/results/default/libhugetlbfs/debug/crash.brk_near_huge.10474/core
is from
After hitting Ctrl + C to interrupt, kernel trace could be found in syslog:
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325504] report_user_fault: 35
callbacks suppressed
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325507] User process fault:
interruption code 0010 ilc:3 in stack_grow_into_huge[12f880000+4000]
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325520] Failing address:
000003ffe72fe000 TEID: 000003ffe72fe400
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325521] Fault in primary space mode
while using user ASCE.
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325523] AS:00000000551701c7
R3:0000000048d88007 S:0000000000000020
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325527] CPU: 0 PID: 10481 Comm:
stack_grow_into Tainted: P D O 4.13.0-11-generic #12-Ubuntu
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325527] Hardware name: IBM 2964 N63
400 (KVM/Linux)
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325528] task: 0000000062450000
task.stack: 0000000062b3c000
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325529] User PSW : 0705300180000000
000000012f8819a8
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325530] R:0 T:1 IO:1 EX:1
Key:0 M:1 W:0 P:1 AS:0 CC:3 PM:0 RI:0 EA:3
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325531] User GPRS: 000002001c51e2f8
fffffffffffff000 0000000000000000 0000000000000004
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325531] 000003fff72fe5c0
0000000000000000 0000000000000003 0000000157806000
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325532] fffffffffff00000
0000000000100000 000003fff7000000 000003fff72fe520
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325532] 000002001c426000
0000000000000003 000000012f8819a2 000003ffe72fe518
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325540] User Code: 000000012f881996:
e548b0a80001 mvghi 168(%r11),1
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325540] 000000012f88199c:
c0e5fffffc86 brasl %r14,12f8812a8
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325540] #000000012f8819a2:
c2f410000008 slgfi %r15,268435464
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325540] >000000012f8819a8:
e54cf0a00001 mvhi 160(%r15),1
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325540] 000000012f8819ae:
4110f0a0 la %r1,160(%r15)
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325540] 000000012f8819b2:
ec1afff8a065 clgrj %r1,%r10,10,12f8819a2
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325540] 000000012f8819b8:
b24f0010 ear %r1,%a0
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325540] 000000012f8819bc:
eb110020000d sllg %r1,%r1,32
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325549] Last Breaking-Event-Address:
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325552] [<000002001c7f26e8>]
0x2001c7f26e8
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325562] Process
10481(stack_grow_into) has RLIMIT_CORE set to 1
Sep 19 07:30:02 s2lp6g004 kernel: [11224.325563] Aborting core
Please find attachment for a more detailed syslog and core dump file.
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: linux-image-4.13.0-11-generic 4.13.0-11.12
ProcVersionSignature: Ubuntu 4.13.0-11.12-generic 4.13.1
Uname: Linux 4.13.0-11-generic s390x
NonfreeKernelModules: zfs zunicode zavl zcommon znvpair
AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code
2: ls: cannot access '/dev/snd/': No such file or directory
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.7-0ubuntu1
Architecture: s390x
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211
not found.
CurrentDmesg:
Date: Tue Sep 19 07:16:55 2017
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lspci:
Lsusb: Error: command ['lsusb'] failed with exit code 1:
PciMultimedia:
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=C
SHELL=/bin/bash
ProcFB: Error: [Errno 2] No such file or directory: '/proc/fb'
ProcKernelCmdLine: root=UUID=d86dc8de-6ac8-4e4b-aba8-92872a209a8c
crashkernel=196M
RelatedPackageVersions:
linux-restricted-modules-4.13.0-11-generic N/A
linux-backports-modules-4.13.0-11-generic N/A
linux-firmware 1.168
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1718107/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
