[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
[Expired for linux (Ubuntu Vivid) because there has been no activity for 60 days.] ** Changed in: linux (Ubuntu Vivid) Status: Incomplete => Expired -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
[Expired for linux-lts-xenial (Ubuntu) because there has been no activity for 60 days.] ** Changed in: linux-lts-xenial (Ubuntu) Status: Incomplete => Expired -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
** Changed in: linux (Ubuntu) Status: Triaged => Incomplete ** Changed in: linux (Ubuntu Vivid) Assignee: Joseph Salisbury (jsalisbury) => (unassigned) ** Changed in: linux-lts-xenial (Ubuntu) Status: Triaged => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
Without hardware it is difficult for us to reproduce these kinds of issues if they are unique to ppc64el. I suggest that you are going to need IBM developer assistance. Also, the attached lock torture script is incomplete in that it requires 'test.sh' which does not exist. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
** Tags removed: targetmilestone-inin14044 ** Tags added: targetmilestone-inin1610 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
** Changed in: linux (Ubuntu Vivid) Status: In Progress => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
@Joseph, i see similar error messages in your syslog. Dell replace the motherboard of my notebook (Latitude 3450), and consequently processor Core i7--5500U @ 2.4GHz, Nvidia GeForce 830M 2GB are replaced. After this fact, none of problems appeared again. then, by inference, I think the problems occurred due to failure in the manufacturing process, if you still want me to perform any test, please explain me step by step how to run it. Sorry the noise. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
One other question, do you used the default values for lock_torture.sh? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
@Fabio, are you seeing the soft lockup when running the lock_torture.sh script from LTP? Or are you just seeing similar error messages in your syslog? I'm attempting to reproduce this bug with lock_torture.sh, but have not been able to so far. However, there are some differences: - My system is and amd64. - I'm using the LTP src from: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343 - I'm testing the latest Xenial 16.04 kernel. I'll try using older kernels and the same LTP tar ball you used as well. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
on my Dell Latitude 3450, Core i7-5500U, some new discoveries: i can start my system if i: * enable Multi Core support on BIOS * and disable Hyperthreading on BIOS -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
** Changed in: linux-lts-xenial (Ubuntu) Importance: Undecided => High ** Changed in: linux-lts-xenial (Ubuntu) Status: New => In Progress ** Changed in: linux-lts-xenial (Ubuntu) Status: In Progress => Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
** Also affects: linux-lts-xenial (Ubuntu) Importance: Undecided Status: New ** No longer affects: linux-lts-xenial (Ubuntu Vivid) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
after the last (2016-05-29) ubuntu packages update, i unable to start Ubuntu 16.04 with any of the installed kernels: 4.5.0-040500-generic ( from http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.5-wily/ ) 4.4.0-22-generic 4.4.0-21-generic I can confirm that this problem also occurs with x86_64 Until the moment, I find two things: I can only start the ubuntu 16.04 if: 1 - Disable Multi Core support on BIOS or 2 - add "acpi=off" on grub start line on system start I think it's a problem with the processor (bug) or a bug with the identify/access the ACPI features I really want to find a definitive solution to this problem. If you need more information or need me to run a program, script, or compile the kernel to test (the last time I did it was in Ubuntu 8.04). please tell me what needs to be run and how, I'll be happy to help. I've attached the kernel log que contains the problem traceback this is lscpu from the system started after disable Multi Core support on BIOS: fabio@luuzfcb:~$ lscpu Architecture: x86_64 CPU op-mode(s):32-bit, 64-bit Byte Order:Little Endian CPU(s):2 On-line CPU(s) list: 0,1 Thread(s) per core:2 Core(s) per socket:1 Socket(s): 1 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family:6 Model: 61 Model name:Intel(R) Core(TM) i7-5500U CPU @ 2.40GHz Stepping: 4 CPU MHz: 799.968 CPU max MHz: 3000. CPU min MHz: 500. BogoMIPS: 4788.86 Virtualization:VT-x L1d cache: 32K L1i cache: 32K L2 cache: 256K L3 cache: 4096K NUMA node0 CPU(s): 0,1 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch epb intel_pt tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid rdseed adx smap xsaveopt dtherm ida arat pln pts ** Attachment added: "kern.log.1" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+attachment/4673939/+files/kern.log.1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
I'll try to reproduce the bug, so we can perform a reverse bisect and identify the fix for this bug. Does this bug only happen on ppc64le? According to comment #31, this may also be happening on x86_64? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
It seems we have the same problem with latest LTS kernel # uname -a Linux dc01ram1rls 4.4.0-18-generic #34~14.04.1-Ubuntu SMP Thu Apr 7 18:31:54 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux # lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description:Ubuntu 14.04.4 LTS Release:14.04 Codename: trusty The kernel was installed with # apt-get install --install-recommends linux-generic-lts-xenial Errors in /var/log/kern.log look like: Apr 24 03:31:58 dc01ram1rls kernel: [280174.661115] NMI watchdog: BUG: soft lockup - CPU#4 stuck for 22s! [rsync:10 4799] Apr 24 03:31:58 dc01ram1rls kernel: [280174.669494] Modules linked in: ip6table_filter ip6_tables iptable_filter ip _tables ebtable_nat ebtables x_tables 8021q garp mrp bridge stp llc dm_crypt intel_rapl ipmi_ssif x86_pkg_temp_ther mal intel_powerclamp ipmi_devintf coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul aesni_intel aes_x8 6_64 lrw gf128mul glue_helper ablk_helper sb_edac cryptd dcdbas edac_core input_leds mei_me lpc_ich mei ipmi_si 825 0_fintek shpchp ipmi_msghandler acpi_power_meter mac_hid parport_pc ppdev lp parport igb dca ptp hid_generic usbhid uas hid usb_storage ahci pps_core megaraid_sas i2c_algo_bit libahci wmi fjes Apr 24 03:31:58 dc01ram1rls kernel: [280174.669522] CPU: 4 PID: 104799 Comm: rsync Not tainted 4.4.0-18-generic #34 ~14.04.1-Ubuntu Apr 24 03:31:58 dc01ram1rls kernel: [280174.669523] Hardware name: Dell Inc. PowerEdge T630/0W9WXC, BIOS 1.3.6 06/0 8/2015 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669525] task: 88041ebea940 ti: 88040258 task.ti: 880402 58 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669526] RIP: 0010:[] [] native_que ued_spin_lock_slowpath+0x160/0x170 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669531] RSP: 0018:8804025839f8 EFLAGS: 0202 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669532] RAX: 0101 RBX: RCX: 00 01 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669533] RDX: 0101 RSI: 0001 RDI: 81fce3 20 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669533] RBP: 8804025839f8 R08: 0101 R09: 880f9da4b7 a4 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669534] R10: 880855937000 R11: 008c R12: 00 00 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669535] R13: 880f9e2799f0 R14: 880f9e2799c0 R15: 00 00 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669536] FS: 7f0980b0b740() GS:88085ec8() knlGS:000 0 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669537] CS: 0010 DS: ES: CR0: 80050033 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669538] CR2: 02c0dd08 CR3: 000405421000 CR4: 001426 e0 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669539] Stack: Apr 24 03:31:58 dc01ram1rls kernel: [280174.669539] 880402583a08 81180407 880402583a18 817 ee550 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669541] 880402583a80 8125ad4a 8804025 83a68 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669542] 812332ab 880f9c044140 880f9e2761a0 8804025 83a70 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669544] Call Trace: Apr 24 03:31:58 dc01ram1rls kernel: [280174.669547] [] queued_spin_lock_slowpath+0xb/0xf Apr 24 03:31:58 dc01ram1rls kernel: [280174.669550] [] _raw_spin_lock+0x20/0x30 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669552] [] mb_cache_entry_get+0x1aa/0x220 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669555] [] ? __getblk_gfp+0x2b/0x60 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669557] [] ext4_xattr_block_set+0x7c/0x9d0 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669559] [] ? ext4_xattr_set_entry+0x34/0x340 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669560] [] ext4_xattr_set_handle+0x2f2/0x420 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669562] [] __ext4_set_acl+0x280/0x320 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669564] [] ext4_set_acl+0xd2/0x110 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669565] [] ? posix_acl_from_xattr+0x11d/0x170 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669567] [] posix_acl_xattr_set+0xb7/0x150 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669569] [] generic_setxattr+0x61/0x80 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669570] [] __vfs_setxattr_noperm+0x61/0x1a0 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669573] [] ? security_inode_setxattr+0xbd/0xd0 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669575] [] vfs_setxattr+0xa7/0xb0 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669576] [] setxattr+0x134/0x1c0 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669579] [] ? kmem_cache_alloc+0x19f/0x200 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669582] [] ? getname_flags+0x4f/0x1f0 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669583] [] ? percpu_down_read+0x1f/0x50 Apr 24 03:31:58 dc01ram1rls kernel: [280174.669584]
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
I am using Ubuntu 16.04 Beta Final, with all available updates installed (21-04-2016) and this bug occurs repeatedly with my Dell Latitude 3450 (core i7-5500U, 8GB RAM, Nvidia 830m, Wireless 7265). This bug occurred with kernel: * 4.4.0-18.34 * 4.4.0-21.37 the occurrence of this bug has decreased considerably after I install the kernel 4.5.0-040500 from http://kernel.ubuntu.com/~kernel- ppa/mainline/v4.5-wily/ following this tutorial http://ubuntuhandbook.org/index.php/2016/03/upgrade-linux-kernel-4-5-ubuntu/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
Thanks for the update. Can you also test the v4.5 upstream kernel? It can be downloaded from: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.5-wily/ If the 4.5 kernel has the bug, I can perform a "Reverse" bisect between v4.5 and v4.6-rc1 to find the commit in 4.5-rc1 that fixes the bug. Thanks! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
The 4.6-rc1 test kernel is now available. Can you test this kernel to see if it also has this issue? It can be downloaded from: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-rc1-wily/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
** Tags removed: kernel-key -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
** Tags added: kernel-key -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
** Tags removed: severity-critical targetmilestone-inin14043 ** Tags added: severity-high targetmilestone-inin14044 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
I modified the lock_torture script to run with the 3.13 or newer kernel. The new script is attached to the bug. Can you test the kernel mentioned in comment 18 with this new script? ** Attachment added: "lock_torture-3.13-kernel.sh" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+attachment/4549966/+files/lock_torture-3.13-kernel.sh -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
There was a 3.18 based kernel for Vivid during development. That kernel can be downloaded from: https://launchpad.net/ubuntu/+source/linux/3.18.0-8.9/+build/6690705 Can you test that one as well? Also, is it possible for you to attach the lock_torture.sh script to the bug? We may be able to modify it, so it will run with a 3.13 kernel. Thanks in advance. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
Can you review comment #14? Per comment #12, this bug still exists upstream. It would be good to know if this is a regression, so we can perform a bisect and identify the commit that introduced this bug. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
Thanks for running those two tests. The results would indicate this bug still exists in the mainline kernel and commit f548d99ef4 is not the fix for this bug. Was there a prior kernel that did not exhibit the bug? If that is the case, and this is a regression, we can perform a kernel bisect to identify the commit that introduced the bug. ** Tags added: kernel-bug-exists-upstream -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
I built a V2 test kernel with a cherry-pick of commit f548d99ef4f5ec8f7080e88ad07c44d16d058ddc. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1483343/ Can you test this kernel and see if it resolves this bug? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
@pavsubra, Were you ever able to test the mainline kernel to see if this bug still exists or not? It can be downloaded from: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4-rc4-wily/ Also, I'll build another test kernel using the latest lts-backport-vivid source and a cherry pick of commit: f548d99ef4. It may be that more than just that one commit is needed. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
@pavsubra, I also don't see any soft lockups in the dmesg. However, you mentioned them in comment #4, which appears to the be test kernel I build with a cherry-pick of commit: f548d99 If that commit does in fact stop the soft lockups, we can send an SRU request to have that commit added to the stable kernels. Also, I requested testing of the latest mainline kernel in comment #6 in case the test kernel does in fact still exhibit the bug. That will tell us if another commit from mainline is also needed. Thanks in advance. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.2 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as Confirmed. Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.2-rc6-unstable/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
** Package changed: ubuntu = linux (Ubuntu) ** Changed in: linux (Ubuntu) Assignee: (unassigned) = Taco Screen team (taco-screen-team) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
** Changed in: linux (Ubuntu) Assignee: Taco Screen team (taco-screen-team) = Canonical Kernel Team (canonical-kernel-team) ** Changed in: linux (Ubuntu) Importance: Undecided = High ** Changed in: linux (Ubuntu) Status: New = Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
** Tags added: kernel-da-key -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
** Also affects: linux (Ubuntu Vivid) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Vivid) Importance: Undecided = High ** Changed in: linux (Ubuntu Vivid) Status: New = In Progress ** Changed in: linux (Ubuntu Vivid) Assignee: (unassigned) = Joseph Salisbury (jsalisbury) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1483343] Re: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests
I built a test kernel with a cherry-pick of commit f548d99ef4f5ec8f7080e88ad07c44d16d058ddc. The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1483343/ Can you test this kernel and see if it resolves this bug? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483343 Title: NMI watchdog: BUG: soft lockup errors when we execute lock_torture_wr tests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483343/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
