That one completed one run of the test OK, but then crashed on the
second one, when bringing CPU 15 back online, with the following dmesg
output:
[ 160.596312] EDAC MC0: Giving out device to module sb_edac.c controller
Haswell SrcID#1_Ha#0: DEV 0000:ff:12.0 (INTERRUPT)
[ 160.596537] EDAC MC1: Giving out device to module sb_edac.c controller
Haswell SrcID#0_Ha#0: DEV 0000:7f:12.0 (INTERRUPT)
[ 160.596679] EDAC sbridge: Some needed devices are missing
[ 160.627089] EDAC MC: Removed device 0 for sb_edac.c Haswell SrcID#1_Ha#0:
DEV 0000:ff:12.0
[ 160.651100] EDAC MC: Removed device 1 for sb_edac.c Haswell SrcID#0_Ha#0:
DEV 0000:7f:12.0
[ 160.651271] EDAC sbridge: Couldn't find mci handler
[ 160.651422] EDAC sbridge: Couldn't find mci handler
[ 160.651572] EDAC sbridge: Failed to register device with error -19.
[ 161.099074] BUG: unable to handle kernel paging request at 0000000180040100
[ 161.099512] IP: __kmalloc_node+0x135/0x2a0
[ 161.099704] PGD 1ff1f01067
[ 161.099705] P4D 1ff1f01067
[ 161.099871] PUD 0
[ 161.100373] Oops: 0000 [#2] SMP
[ 161.100548] Modules linked in: nls_iso8859_1 intel_rapl x86_pkg_temp_thermal
intel_powerclamp coretemp intel_cstate kvm_intel kvm irqbypass intel_rapl_perf
joydev input_leds ipmi_ssif ipmi_si ipmi_devintf ipmi_msghandler mei_me mei
shpchp lpc_ich acpi_pad mac_hid acpi_power_meter ib_iser rdma_cm iw_cm ib_cm
ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs
raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor
raid6_pq libcrc32c raid1 raid0 multipath linear ses enclosure
scsi_transport_sas fnic crct10dif_pclmul crc32_pclmul mgag200
ghash_clmulni_intel ttm pcbc igb hid_generic drm_kms_helper aesni_intel dca
syscopyarea i2c_algo_bit sysfillrect aes_x86_64 sysimgblt usbhid libfcoe
crypto_simd fb_sys_fops ahci ptp glue_helper hid mxm_wmi libfc cryptd libahci
[ 161.102507] pps_core drm enic scsi_transport_fc megaraid_sas wmi
[ 161.102856] CPU: 2 PID: 3686 Comm: python3 Tainted: G D
4.13.0-13-generic #14~lp1733662Commit8d9d2235a82ea41
[ 161.103230] Hardware name: Cisco Systems Inc UCSC-C240-M4L/UCSC-C240-M4L,
BIOS C240M4.2.0.10c.0.032320160820 03/23/2016
[ 161.103624] task: ffff8f3de5989740 task.stack: ffffa3a7ce288000
[ 161.104024] RIP: 0010:__kmalloc_node+0x135/0x2a0
[ 161.104431] RSP: 0018:ffffa3a7ce28bc30 EFLAGS: 00010246
[ 161.104846] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000f95
[ 161.105274] RDX: 0000000000000f94 RSI: 0000000000000000 RDI: 000000000001f3e0
[ 161.105705] RBP: ffffa3a7ce28bc70 R08: ffff8f3dffc9f3e0 R09: ffff8f3dff807c00
[ 161.106148] R10: ffffffffbb017760 R11: ffff8f5df8fa21f2 R12: 00000000014080c0
[ 161.106599] R13: 0000000000000008 R14: 0000000180040100 R15: ffff8f3dff807c00
[ 161.107057] FS: 00007f7849b98700(0000) GS:ffff8f3dffc80000(0000)
knlGS:0000000000000000
[ 161.107530] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 161.108014] CR2: 0000000180040100 CR3: 0000001ff6e6e000 CR4: 00000000001406e0
[ 161.108509] Call Trace:
[ 161.109012] ? alloc_cpumask_var_node+0x1f/0x30
[ 161.109523] ? on_each_cpu_cond+0x160/0x160
[ 161.110036] alloc_cpumask_var_node+0x1f/0x30
[ 161.110558] zalloc_cpumask_var_node+0xf/0x20
[ 161.111084] smpcfd_prepare_cpu+0x64/0xc0
[ 161.111615] cpuhp_invoke_callback+0x84/0x3b0
[ 161.112151] cpuhp_up_callbacks+0x36/0xc0
[ 161.112690] _cpu_up+0x87/0xd0
[ 161.113235] do_cpu_up+0x8b/0xb0
[ 161.113785] cpu_up+0x13/0x20
[ 161.114342] cpu_subsys_online+0x3d/0x90
[ 161.114881] device_online+0x4a/0x90
[ 161.115422] online_store+0x89/0xa0
[ 161.115951] dev_attr_store+0x18/0x30
[ 161.116472] sysfs_kf_write+0x37/0x40
[ 161.116994] kernfs_fop_write+0x11c/0x1a0
[ 161.117510] __vfs_write+0x18/0x40
[ 161.118029] vfs_write+0xb1/0x1a0
[ 161.118544] SyS_write+0x55/0xc0
[ 161.119062] entry_SYSCALL_64_fastpath+0x1e/0xa9
[ 161.119581] RIP: 0033:0x7f78497784a0
[ 161.120081] RSP: 002b:00007fff6e69ed48 EFLAGS: 00000246 ORIG_RAX:
0000000000000001
[ 161.120602] RAX: ffffffffffffffda RBX: 0000000001ea8410 RCX: 00007f78497784a0
[ 161.121129] RDX: 0000000000000002 RSI: 0000000001fbe400 RDI: 0000000000000003
[ 161.121666] RBP: 0000000000a3e020 R08: 0000000000000000 R09: 0000000000000001
[ 161.122202] R10: 0000000000000100 R11: 0000000000000246 R12: 0000000000000003
[ 161.122720] R13: 0000000000501520 R14: 00007fff6e69f1b0 R15: 00007f7848690240
[ 161.123226] Code: 89 cf 4c 89 4d c0 e8 0b 7f 01 00 49 89 c7 4c 8b 4d c0 4d
85 ff 0f 85 47 ff ff ff 45 31 f6 eb 3c 49 63 47 20 49 8b 3f 48 8d 4a 01 <49> 8b
1c 06 4c 89 f0 65 48 0f c7 0f 0f 94 c0 84 c0 0f 84 20 ff
[ 161.124251] RIP: __kmalloc_node+0x135/0x2a0 RSP: ffffa3a7ce28bc30
[ 161.124738] CR2: 0000000180040100
[ 161.125220] ---[ end trace 1246d63efc5b2bf0 ]---
Rather than hang, as has happened before, the script crashed ("Killed"
was displayed and I was dropped back to a bash prompt). The system
behaved unreliably and I was forced to reboot it via its BMC.
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https://bugs.launchpad.net/bugs/1733662
Title:
System hang with Linux kernel 4.13, not with 4.10
Status in linux package in Ubuntu:
In Progress
Status in linux-hwe package in Ubuntu:
New
Status in linux source package in Artful:
In Progress
Status in linux-hwe source package in Artful:
New
Status in linux source package in Bionic:
In Progress
Status in linux-hwe source package in Bionic:
New
Bug description:
In doing Ubuntu 17.10 regression testing, we've encountered one
computer (boldore, a Cisco UCS C240 M4 [VIC]), that hangs about one in
four times when running our cpu_offlining test. This test attempts to
take all the CPU cores offline except one, then brings them back
online again. This test ran successfully on boldore with previous
releases, but with 17.10, the system sometimes (about one in four
runs) hangs. Reverting to Ubuntu 16.04.3, I found no problems; but
when I upgraded the 16.04.3 installation to linux-
image-4.13.0-16-generic, the problem appeared again, so I'm confident
this is a problem with the kernel. I'm attaching two files, dmesg-
output-4.10.txt and dmesg-output-4.13.txt, which show the dmesg output
that appears when running the cpu_offlining test with 4.10.0-38 and
4.13.0-16 kernels, respectively; the system hung on the 4.13 run. (I
was running "dmesg -w" in a second SSH login; the files are cut-and-
pasted from that.)
I initiated this bug report from an Ubuntu 16.04.3 installation
running a 4.10 kernel; but as I said, this applies to the 4.13 kernel.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.10.0-38-generic 4.10.0-38.42~16.04.1
ProcVersionSignature: User Name 4.10.0-38.42~16.04.1-generic 4.10.17
Uname: Linux 4.10.0-38-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
Date: Tue Nov 21 17:36:06 2017
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: linux-hwe
UpgradeStatus: No upgrade log present (probably fresh install)
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