Hello kernel hackers,
I'm still getting hard lockups on my docker machine with overlayfs and
3ware RAID with linux 4.5.0. They look a bit different though.
It would be great if someone could look into it.
Kernel messages follow:
NMI watchdog: Watchdog detected hard LOCKUP on cpu 6
Kernel panic -
Hello kernel hackers,
I'm getting hard lockups with kernel 4.4.5 (at least 4.4.3 and 4.4.4
also). This is a docker hypervisor machine with overlayfs and 3ware
RAID.
They usually happen when I do something with docker, here when I ran
poweroff in a container (those are all VM-like containers which
On Wed, 22 Apr 2015 10:45:19 +0200
Torsten Luettgert wrote:
> I'll keep this running, and if - when - it has been going for a week
> (3 times the max uptime without the patch) - I'll give a final notice.
So here it is, the final notice:
17:16:36 up 7 days, 4:07, 2 users, lo
On Mon, 20 Apr 2015 13:24:24 +0200
Torsten Luettgert wrote:
> > Can you test the patch below?
>
> I'm running it right now and keeping my fingers crossed.
Just under two days uptime now, and no crashes. I'm pretty sure you
nailed it.
I'll keep this running, and if
On Sun, 19 Apr 2015 18:58:41 +0200
Christoph Hellwig wrote:
> This looks like a long standing bug in all three 3ware drivers to
> me, that the taking the host lock around the host_busy manipulation
> was hiding.
>
> Can you test the patch below?
I'm running it right now and keeping my fingers c
On Fri, 17 Apr 2015 15:31:16 +0200
Torsten Luettgert wrote:
> On Mon, 13 Apr 2015 20:28:29 +0200
> Torsten Luettgert wrote:
>
> Right now, I'm trying the problematic release, compiled with a newer
> gcc (4.9.2-6 from Fedora, while using 4.4.7-11 from rhel6
> before). It
On Mon, 13 Apr 2015 20:28:29 +0200
Torsten Luettgert wrote:
> On Mon, 13 Apr 2015 19:41:05 +0200
> Christoph Hellwig wrote:
>
> > Can you run gdb on your vmlinux file and send the output of the
> > following command in gdb
> >
> > l *(scsi_dma_unmap+0x54)
>
On Mon, 13 Apr 2015 19:41:05 +0200
Christoph Hellwig wrote:
> Can you run gdb on your vmlinux file and send the output of the
> following command in gdb
>
> l *(scsi_dma_unmap+0x54)
Thanks for looking into it! Here is what gdb says:
Reading symbols
from /opt/kvm/bisect/vmlinux-3.16.0-746650160
Hello,
I'm getting NULL pointer deref BUGs on a Supermicro machine of
mine since 3.17. It occurs at random uptimes, often a few hours
after booting (max uptime was 2 days yet).
I bisected the problem (took a while); the problematic commit seems
to be 746650160866 (scsi: convert host_busy to atomi
Hello all,
There's still a bug in the new TCP-MD5 feature.
On x86_64, the hash function is fed wrong TCP payload content.
The same kernel, same conf (except arch -> x86) on an Athlon
doesn't have the problem. Kernel is a vanilla 2.6.20-rc5.
I put debugging printk()s into tcp_v4_do_calc_md5_hash(
Hi,
I'm using the new TCP-MD5 option in 2.6.20-rc4 and rc5
to talk BGP to cisco routers.
My box connects to the cisco, and the handshake looks fine:
SYN, SYN/ACK, ACK all have md5 option and correct TCP checksums.
All packets after that, i.e. the ones with payload data,
have wrong TCP checksums,
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