[Bug 1970076] [NEW] "User process fault: interruption code 0011 ilc:3" on SSH client/server upon Jammy upgrade

[Ryan Finnie]

Public bug reported:

This s390x VM has been upgraded to Jammy, including the host (qemu-
system-s390x 1:6.2+dfsg-2ubuntu6).  Now any attempt to use ssh, or any
incoming sshd attempt immediately results in e.g.:

ryan at s390x-dev:~$ ssh git at github.com
[  433.672800] User process fault: interruption code 0011 ilc:3 in libc.so.6[3ffa6c00000+1ca000]
[  433.672946] Failing address: 000002aa0b84d000 TEID: 000002aa0b84d800
[  433.672977] Fault in primary space mode while using user ASCE.
[  433.673030] AS:0000000002bc01c7 R3:00000000087cc007 S:000000000798a000 P:0000000000000400 
Segmentation fault (core dumped)

** Affects: openssh (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-crash jammy need-s390x-retrace qemu s390x

** Attachment added: "_usr_bin_ssh.1000.crash"
   https://bugs.launchpad.net/bugs/1970076/+attachment/5582994/+files/_usr_bin_ssh.1000.crash

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https://bugs.launchpad.net/bugs/1970076

Title:
  "User process fault: interruption code 0011 ilc:3" on SSH
  client/server upon Jammy upgrade

Status in openssh package in Ubuntu:
  New

Bug description:
  This s390x VM has been upgraded to Jammy, including the host (qemu-
  system-s390x 1:6.2+dfsg-2ubuntu6).  Now any attempt to use ssh, or any
  incoming sshd attempt immediately results in e.g.:

  ryan at s390x-dev:~$ ssh git at github.com
  [  433.672800] User process fault: interruption code 0011 ilc:3 in libc.so.6[3ffa6c00000+1ca000]
  [  433.672946] Failing address: 000002aa0b84d000 TEID: 000002aa0b84d800
  [  433.672977] Fault in primary space mode while using user ASCE.
  [  433.673030] AS:0000000002bc01c7 R3:00000000087cc007 S:000000000798a000 P:0000000000000400 
  Segmentation fault (core dumped)

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