OK, lets mark that as fixed released
** Changed in: linux (Ubuntu)
Status: Incomplete => Fix Released
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Title:
CPU Cores Stalls/Lock
To
upgraded kernel to 4.12.13 and the problem is not happening.
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Title:
CPU Cores Stalls/Lock
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That stack trace was in the log just before It stalled and hard locked.
This is the trace that happened next
Sep 28 08:37:34 gandolf kernel: [ 6142.796923] INFO: rcu_bh self-detected stall
on CPU
Sep 28 08:37:34 gandolf kernel: [ 6142.796926] 0-...: (1 GPs behind)
idle=653/141/0
I am experiencing the same problem on an Intel CPU. Just did a fresh
install of 17.04 and the CPU Stalls/Locks.
Have never experienced this problem on any of the previous versions of
ubuntu I have installed on it.
Workstation is currently locked and cannot get information until I get
back into
Sep 28 08:37:19 gandolf kernel: [ 6127.965285] NMI watchdog: BUG: soft lockup -
CPU#0 stuck for 23s! [sshd:3995]
Sep 28 08:37:19 gandolf kernel: [ 6127.965287] Modules linked in: vhost_net
vhost macvtap macvlan ebtable_filter ebtables ip6table_filter ip6_tables
xt_multiport iptable_filter
Hi William,
Do you mind trying out the suggested workaround in comment #8. If I
don't hear back from you in 4 weeks I will close the bug.
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Removing ZFS from the bug as this is not specific to ZFS
** Changed in: zfs-linux (Ubuntu)
Status: Triaged => Incomplete
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
** No longer affects: zfs-linux (Ubuntu)
** Changed in: linux (Ubuntu)
Assignee:
Just to factor out any specific BIOS/CPU issues, can you try with the kernel
option:
processor.max_cstate=1
Edit /etc/default/grub and change:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
to:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash processor.max_cstate=1"
then run:
sudo update-grub
and
I thought 4.12.2 fixed this issue but it just now crashed again.
I have replaced every single piece of hardware. CPU(fx and ryzen), mobo(asus
and MSI), memory, hard drives(WD blue and re4 for boot disk, with red for
storage array) , video card(nvidia and ATI).
The only commonality is Ubuntu with
** Tags removed: kernel-fixed-upstream
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Title:
CPU Cores Stalls/Lock
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It maybe also worth stress testing your hardware with tools such as stress-ng
to try and coerce issues like this out. See:
http://kernel.ubuntu.com/~cking/stress-ng/
** Changed in: zfs-linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: zfs-linux (Ubuntu)
Assignee:
** Tags added: kernel-fixed-upstream
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CPU Cores Stalls/Lock
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I have installed kernel 4.12.2 and have zero crashes in over 24 hours
with several TB of network traffic through it. This is a first time in
over a year. Seems stable but will let it burn in before calling it
resolved by the kernel upgrade.
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This issue is not related to ZFS. It simply happened to stall on that process.
I have since removed zfs and rebuilt with mdadm and installed an upstream
kernel (4.10.17-041017-generic) and the issue continues.
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** Also affects: zfs-linux (Ubuntu)
Importance: Undecided
Status: New
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Title:
CPU Cores Stalls/Lock
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Jun 11 09:03:08 TheSource kernel: [22835.941815] NMI watchdog: BUG: soft lockup
- CPU#13 stuck for 22s! [z_rd_int_4:2067]
Jun 11 09:03:08 TheSource kernel: [22835.941874] Modules linked in: xt_CHECKSUM
iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4
nf_nat
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
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Title:
CPU Cores Stalls/Lock
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