Sure, but after catching the stacktrace.
On середа, 6 січня 2016 р. 10:43:45 EET Yuchung Cheng wrote:
> Could you turn off ecn (sysctl net.ipv4.tcp_ecn=0) to see if this still
> happen?
> >> On December 22, 2015 4:10:32 AM EET, Yuchung Cheng
wrote:
> >> >On Mon, Dec 21, 2015 at 12:25 PM, Oleks
On Wed, Jan 6, 2016 at 10:19 AM, Yuchung Cheng wrote:
> On Wed, Jan 6, 2016 at 8:50 AM, Oleksandr Natalenko
> wrote:
>>
>> Unfortunately, the patch didn't help -- I've got the same stacktrace with
>> slightly different offset (+3) within the function.
>>
>> Now trying to get full stacktrace via
On Wed, Jan 6, 2016 at 8:50 AM, Oleksandr Natalenko
wrote:
>
> Unfortunately, the patch didn't help -- I've got the same stacktrace with
> slightly different offset (+3) within the function.
>
> Now trying to get full stacktrace via netconsole. Need more time.
>
> Meanwhile, any other ideas on wh
Unfortunately, the patch didn't help -- I've got the same stacktrace with
slightly different offset (+3) within the function.
Now trying to get full stacktrace via netconsole. Need more time.
Meanwhile, any other ideas on what went wrong?
On December 22, 2015 4:10:32 AM EET, Yuchung Cheng wro
That is correct, I have net.ipv4.tcp_ecn set to 1.
I've recompiled the kernel with proposed patch, now still waiting for issue to
be triggered.
Could I manually simulate the erroneous TCP ECN behavior to speed up the
debugging?
On понеділок, 21 грудня 2015 р. 18:10:32 EET Yuchung Cheng wrote:
On Mon, Dec 21, 2015 at 12:25 PM, Oleksandr Natalenko
wrote:
> Commit 3759824da87b30ce7a35b4873b62b0ba38905ef5 (tcp: PRR uses CRB mode by
> default and SS mode conditionally) introduced changes to net/ipv4/tcp_input.c
> tcp_cwnd_reduction() that, possibly, cause division by zero, and therefore,
>
Commit 3759824da87b30ce7a35b4873b62b0ba38905ef5 (tcp: PRR uses CRB mode by
default and SS mode conditionally) introduced changes to net/ipv4/tcp_input.c
tcp_cwnd_reduction() that, possibly, cause division by zero, and therefore,
kernel panic in interrupt handler [1].
Reverting 3759824da87b30ce7
