lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [day] [month] [year] [list]
Message-ID: <20161130180624.GA15492@yexl-desktop>
Date:   Thu, 1 Dec 2016 02:06:24 +0800
From:   kernel test robot <xiaolong.ye@...el.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Yinghai Lu <yinghai@...nel.org>,
        Borislav Petkov <bp@...en8.de>,
        LKML <linux-kernel@...r.kernel.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        Thomas Gleixner <tglx@...utronix.de>, tipbuild@...or.com,
        lkp@...org
Subject: [lkp] [x86/tsc]  8b223bc7ab: BUG:unable_to_handle_kernel


FYI, we noticed the following commit:

commit: 8b223bc7abe0e30e8d297a24ee6c6c07ef8d0bb9 ("x86/tsc: Store and check TSC ADJUST MSR")
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/timers

in testcase: boot

on test machine: qemu-system-x86_64 -enable-kvm -cpu host -smp 2 -m 1G

caused below changes:


+------------------------------------------------------------------+------------+------------+
|                                                                  | bec8520dca | 8b223bc7ab |
+------------------------------------------------------------------+------------+------------+
| boot_successes                                                   | 2          | 0          |
| boot_failures                                                    | 4          | 4          |
| WARNING:at_fs/sysfs/dir.c:#sysfs_warn_dup                        | 1          |            |
| calltrace:parport_pc_init                                        | 1          |            |
| calltrace:SyS_finit_module                                       | 1          |            |
| WARNING:at_lib/kobject.c:#kobject_add_internal                   | 1          |            |
| BUG:kernel_reboot-without-warning_in_test_stage                  | 1          |            |
| invoked_oom-killer:gfp_mask=0x                                   | 2          |            |
| Mem-Info                                                         | 2          |            |
| Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 2          |            |
| BUG:unable_to_handle_kernel                                      | 0          | 4          |
| Oops                                                             | 0          | 4          |
| RIP:_find_next_bit                                               | 0          | 4          |
| Kernel_panic-not_syncing:Fatal_exception                         | 0          | 4          |
+------------------------------------------------------------------+------------+------------+



[    0.000000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns
[    0.000000] hpet clockevent registered
[    0.000000] tsc: Detected 2593.992 MHz processor
[    0.000000] BUG: unable to handle kernel NULL pointer dereference at           (null)
[    0.000000] IP: [<ffffffff8147c1a5>] _find_next_bit+0x15/0x70
[    0.000000] PGD 0 
[    0.000000] 
[    0.000000] Oops: 0000 [#1] SMP
[    0.000000] Modules linked in:
[    0.000000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.9.0-rc5-00008-g8b223bc #1
[    0.000000] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[    0.000000] task: ffffffff81e0e4c0 task.stack: ffffffff81e00000
[    0.000000] RIP: 0010:[<ffffffff8147c1a5>]  [<ffffffff8147c1a5>] _find_next_bit+0x15/0x70
[    0.000000] RSP: 0000:ffffffff81e03eb0  EFLAGS: 00010246
[    0.000000] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[    0.000000] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
[    0.000000] RBP: ffffffff81e03ec0 R08: ffffffffffffffff R09: 0000000000000000
[    0.000000] R10: 0000000000000020 R11: 000000000013ca64 R12: 0000000000000000
[    0.000000] R13: 0000000000000000 R14: 0000000000000000 R15: 000000000000008e
[    0.000000] FS:  0000000000000000(0000) GS:ffff880029a00000(0000) knlGS:0000000000000000
[    0.000000] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.000000] CR2: 0000000000000000 CR3: 0000000001e07000 CR4: 00000000000406b0
[    0.000000] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    0.000000] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    0.000000] Stack:
[    0.000000]  ffffffff81e03ec0 ffffffff8147c218 ffffffff81e03ee0 ffffffff81465a46
[    0.000000]  ffff880029a0d580 000000000000d580 ffffffff81e03f18 ffffffff81053005
[    0.000000]  0000000000000002 0000000000016a00 ffffffff820b4920 ffffffff820c12e0
[    0.000000] Call Trace:
[    0.000000]  [<ffffffff8147c218>] ? find_next_bit+0x18/0x20
[    0.000000]  [<ffffffff81465a46>] cpumask_any_but+0x26/0x50
[    0.000000]  [<ffffffff81053005>] tsc_store_and_check_tsc_adjust+0x75/0x120
[    0.000000]  [<ffffffff8200a518>] tsc_init+0x19f/0x24d
[    0.000000]  [<ffffffff82006df7>] x86_late_time_init+0xf/0x11
[    0.000000]  [<ffffffff81ffbeb0>] start_kernel+0x35b/0x414
[    0.000000]  [<ffffffff81ffb120>] ? early_idt_handler_array+0x120/0x120
[    0.000000]  [<ffffffff81ffb2d6>] x86_64_start_reservations+0x2a/0x2c
[    0.000000]  [<ffffffff81ffb415>] x86_64_start_kernel+0x13d/0x14c
[    0.000000] Code: d0 48 0f 47 c2 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 c8 48 89 d1 49 c7 c0 ff ff ff ff 48 c1 e9 06 49 89 c1 55 <4c> 33 0c cf 89 d1 48 83 e2 c0 49 d3 e0 48 89 e5 4c 89 c1 4c 21 
[    0.000000] RIP  [<ffffffff8147c1a5>] _find_next_bit+0x15/0x70
[    0.000000]  RSP <ffffffff81e03eb0>
[    0.000000] CR2: 0000000000000000
[    0.000000] ---[ end trace a444a5b30abeb907 ]---
[    0.000000] Kernel panic - not syncing: Fatal exception

Elapsed time: 40



To reproduce:

        git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> job-script  # job-script is attached in this email



Thanks,
Xiaolong

View attachment "config-4.9.0-rc5-00008-g8b223bc" of type "text/plain" (153626 bytes)

View attachment "job-script" of type "text/plain" (3976 bytes)

Download attachment "dmesg.xz" of type "application/octet-stream" (4552 bytes)

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ