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linux-image-5.7.0-1-amd64: Oops on kernel (NULL pointer dereference) after NFS is mounted on client

Started byRobin Gutöhrlein <Robin.Gutoehrlein@gmx.de>
First post2020-07-24 20:00 +0200
Last post2020-07-25 16:10 +0200
Articles 3 — 2 participants

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  linux-image-5.7.0-1-amd64: Oops on kernel (NULL pointer  dereference) after NFS is mounted on client Robin Gutöhrlein <Robin.Gutoehrlein@gmx.de> - 2020-07-24 20:00 +0200
    Re: linux-image-5.7.0-1-amd64: Oops on kernel (NULL pointer  dereference) after NFS is mounted on client riveravaldez <riveravaldezmail@gmail.com> - 2020-07-25 10:10 +0200
      Re: Re: linux-image-5.7.0-1-amd64: Oops on kernel (NULL pointer  dereference) after NFS is mounted on client Robin Gutöhrlein <Robin.Gutoehrlein@gmx.de> - 2020-07-25 16:10 +0200

#225208 — linux-image-5.7.0-1-amd64: Oops on kernel (NULL pointer dereference) after NFS is mounted on client

FromRobin Gutöhrlein <Robin.Gutoehrlein@gmx.de>
Date2020-07-24 20:00 +0200
Subjectlinux-image-5.7.0-1-amd64: Oops on kernel (NULL pointer dereference) after NFS is mounted on client
Message-ID<Awa9c-1O8-7@gated-at.bofh.it>
Hello,

my server (Debian bullseye) is crashing after i mount a nfs (with
kerberos) share on a client machine (same debian). I have no idea how
to file the bug (and where it belongs). I can't use the reportbug tool
since I do not have a MTA configured.


BUG: kernel NULL pointer dereference, adress: 000000000000000010
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) -not-present page
PGD0 P4D 0
Oops: 0000 [#1] SMP PTI
...
RIP: 0010:__cgroup_bfp_run_filter_skb+0x26b/0x3d0
...
Call Trace:
  ip_finish_output
  ip_output
  ? __ip_finish_output
  __ip_queue_xmit
  ? __switch_to_asm
  ? __switch_to_asm
  ? __switch_to_asm
  __tcp_transmit_skb
  tcp_write_xmit
  __tcp_push_pending_frames
  inet_shutdown
  svc_delete_xprt
  svc_close_net
  svc_shutdown_net
  nfsd_destroy
  nfsd
  kthread
  ? nfsd_destroy
  ?  kthread_park
  ret_from_fork

Sincerly
Robin

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#225235

Fromriveravaldez <riveravaldezmail@gmail.com>
Date2020-07-25 10:10 +0200
Message-ID<AwnpL-1Gl-1@gated-at.bofh.it>
In reply to#225208
On 7/24/20, Robin Gutöhrlein <Robin.Gutoehrlein@gmx.de> wrote:
> Hello,
>
> my server (Debian bullseye) is crashing after i mount a nfs (with
> kerberos) share on a client machine (same debian). I have no idea how
> to file the bug (and where it belongs). I can't use the reportbug tool
> since I do not have a MTA configured.

Hi, just in case: a little time ago I installed reportbug and reported
a bug and the MTA was not a previous condition. Have you given it a
try?

Best regards

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#225246

FromRobin Gutöhrlein <Robin.Gutoehrlein@gmx.de>
Date2020-07-25 16:10 +0200
Message-ID<Awt29-52F-3@gated-at.bofh.it>
In reply to#225235
Hi,
yes I tried it. I typed the whole "Oops" screen, tried to send it, but
it would not. The report it saved into a file was scrambled...
Best regards

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