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Re: [Bug 1469214] [NEW] HP ProLiant m400 Server crashes with unhandled level 3 translation fault

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Ming Lei <1469214@xxxxxxxxxxxxxxxxxx>
Date: Fri, 03 Jul 2015 03:59:09 -0000
Reply-to: Bug 1469214 <1469214@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
This one looks a problem of systemd-timesyncd, from pmap log[1],
both the PC and faulted address aren't valid,  which drop in heap area,
but the faulted address(0x7fa8ea6008) shouldn't have been allocated
and is far away from the start address(0x7f9eb27000) of hear area.


[1] pmap log

ubuntu@ms10-37-mcdivittB0:~$ ps -ax | grep systemd-timesyncd
  412 ?        Ssl    0:00 /lib/systemd/systemd-timesyncd
18058 pts/2    S+     0:00 grep --color=auto systemd-timesyncd
ubuntu@ms10-37-mcdivittB0:~$ sudo pmap 412 | tail -n 10
0000007f82730000    108K r-x-- systemd-timesyncd
0000007f8274e000     16K rw---   [ anon ]
0000007f82757000      8K rw---   [ anon ]
0000007f82759000      4K r----   [ anon ]
0000007f8275a000      4K r-x--   [ anon ]
0000007f8275b000      4K r---- systemd-timesyncd
0000007f8275c000      4K rw--- systemd-timesyncd
0000007f9eb27000    132K rw---   [ anon ]
0000007fd5e13000    132K rw---   [ stack ]
 total            77176K
ubuntu@ms10-37-mcdivittB0:~$ sudo pmap 412
412:   /lib/systemd/systemd-timesyncd
0000007f7c000000    132K rw---   [ anon ]
0000007f7c021000  65404K -----   [ anon ]
0000007f81c29000     16K r-x-- libnss_dns-2.21.so
0000007f81c2d000     64K ----- libnss_dns-2.21.so
0000007f81c3d000      4K r---- libnss_dns-2.21.so
0000007f81c3e000      4K rw--- libnss_dns-2.21.so
0000007f81c3f000      4K -----   [ anon ]
0000007f81c40000   8188K rw---   [ anon ]
0000007f8243f000     40K r-x-- libnss_files-2.21.so
0000007f82449000     60K ----- libnss_files-2.21.so
0000007f82458000      4K r---- libnss_files-2.21.so
0000007f82459000      4K rw--- libnss_files-2.21.so
0000007f8245a000     36K r-x-- libnss_nis-2.21.so
0000007f82463000     60K ----- libnss_nis-2.21.so
0000007f82472000      4K r---- libnss_nis-2.21.so
0000007f82473000      4K rw--- libnss_nis-2.21.so
0000007f82474000     72K r-x-- libnsl-2.21.so
0000007f82486000     60K ----- libnsl-2.21.so
0000007f82495000      4K r---- libnsl-2.21.so
0000007f82496000      4K rw--- libnsl-2.21.so
0000007f82497000      8K rw---   [ anon ]
0000007f82499000     24K r-x-- libnss_compat-2.21.so
0000007f8249f000     64K ----- libnss_compat-2.21.so
0000007f824af000      4K r---- libnss_compat-2.21.so
0000007f824b0000      4K rw--- libnss_compat-2.21.so
0000007f824b1000    580K r-x-- libm-2.21.so
0000007f82542000     60K ----- libm-2.21.so
0000007f82551000      4K r---- libm-2.21.so
0000007f82552000      4K rw--- libm-2.21.so
0000007f82553000     16K r-x-- libcap.so.2.24
0000007f82557000     60K ----- libcap.so.2.24
0000007f82566000      4K r---- libcap.so.2.24
0000007f82567000      4K rw--- libcap.so.2.24
0000007f82568000     68K r-x-- libresolv-2.21.so
0000007f82579000     64K ----- libresolv-2.21.so
0000007f82589000      4K r---- libresolv-2.21.so
0000007f8258a000      4K rw--- libresolv-2.21.so
0000007f8258b000      8K rw---   [ anon ]
0000007f8258d000   1216K r-x-- libc-2.21.so
0000007f826bd000     60K ----- libc-2.21.so
0000007f826cc000     16K r---- libc-2.21.so
0000007f826d0000      8K rw--- libc-2.21.so
0000007f826d2000     16K rw---   [ anon ]
0000007f826d6000     88K r-x-- libpthread-2.21.so
0000007f826ec000     60K ----- libpthread-2.21.so
0000007f826fb000      4K r---- libpthread-2.21.so
0000007f826fc000      4K rw--- libpthread-2.21.so
0000007f826fd000     16K rw---   [ anon ]
0000007f82701000    112K r-x-- ld-2.21.so
0000007f8272d000      4K r---- ld-2.21.so
0000007f8272e000      8K rw--- ld-2.21.so
0000007f82730000    108K r-x-- systemd-timesyncd
0000007f8274e000     16K rw---   [ anon ]
0000007f82757000      8K rw---   [ anon ]
0000007f82759000      4K r----   [ anon ]
0000007f8275a000      4K r-x--   [ anon ]
0000007f8275b000      4K r---- systemd-timesyncd
0000007f8275c000      4K rw--- systemd-timesyncd
0000007f9eb27000    132K rw---   [ anon ]
0000007fd5e13000    132K rw---   [ stack ]
 total            77176K

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https://bugs.launchpad.net/bugs/1469214

Title:
  HP ProLiant m400 Server crashes with unhandled level 3 translation
  fault

Status in linux package in Ubuntu:
  Triaged

Bug description:
  Running stress-ng on a HP ProLiant m400 server can cause unhandled
  level 3 translations faults:

  use stress-ng from git://kernel.ubuntu.com/cking/stress-ng

  ./stress-ng --seq 0 -t 60 -v

  and after some time this trips the following:

  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922560] systemd-timesyn[481]: unhandled level 3 translation fault (7) at 0x7fa8ea6008, esr 0x92000007
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922561] pgd = ffffffcfb563f000
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922563] [7fa8ea6008] *pgd=0000004fb4f28003, *pud=0000004fb4f28003, *pmd=0000004fb4f38003, *pte=000000001d151c00
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922566]
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922569] CPU: 6 PID: 481 Comm: systemd-timesyn Not tainted 3.19.0-21-generic #21-Ubuntu
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922571] Hardware name: HP ProLiant m400 Server Cartridge (DT)
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922573] task: ffffffcfb4e3b100 ti: ffffffcfb4d2c000 task.ti: ffffffcfb4d2c000
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922588] PC is at 0x7fa8d81824
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922589] LR is at 0x7fa8e3b3e4
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922590] pc : [<0000007fa8d81824>] lr : [<0000007fa8e3b3e4>] pstate: 80000000
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922591] sp : 0000007ff120d660
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922592] x29: 0000007ff120d660 x28: 0000007fa8f1c000
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922594] x27: 0000007fa8f32084 x26: 0000007fa8f32000
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922595] x25: 0000007fa8f1d788 x24: 0000007fa8f1d888
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922597] x23: 0000000000000001 x22: 0000007fa8f1faa0
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922599] x21: 0000007ff120d7f0 x20: 0000007ff120d7d0
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922600] x19: 0000007fa8f31000 x18: 0000007fa8f1e000
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922602] x17: 0000007fa8e3b3b8 x16: 0000007fa8ea6000
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922603] x15: 003b9aca00000000 x14: 00219bbdd0000000
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922605] x13: ffffffffaa751223 x12: 0000000000000000
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922607] x11: 0101010101010101 x10: 7f7f7f7f7f7f7f7f
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922609] x9 : 37333c43484f5e46 x8 : 0000007ff120d818
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922610] x7 : 0000007ff120d8f0 x6 : 0000007ff120d828
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922612] x5 : ffffff80ffffffd0 x4 : 0000007ff120d8c0
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922613] x3 : 0000007ff120d7d0 x2 : 0000007fa8f1faa0
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922615] x1 : 0000000000000001 x0 : 0000000000000064
  Jun 26 14:01:54 ms10-34-proliant kernel: [150297.922616]

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References

[Bug 1469214] [NEW] HP ProLiant m400 Server crashes with unhandled level 3 translation fault
From: Colin Ian King, 2015-06-26