[Bug 1180002] [Build 20201213] Tumbleweed - iucvconn failure without kernel boot parameter hardened_usercopy=off

https://bugzilla.suse.com/show_bug.cgi?id=1180002 https://bugzilla.suse.com/show_bug.cgi?id=1180002#c1 Jiri Slaby changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jslaby@suse.com, | |sarah.kriesch@ibm.com Flags| |needinfo?(sarah.kriesch@ibm | |.com) --- Comment #1 from Jiri Slaby --- (In reply to Sarah Julia Kriesch from comment #0)

## Observation

As mentioned in https://bugzilla.suse.com/show_bug.cgi?id=1156053#c17, the kernel boot parameter hardened_usercopy=off is required for a working Linux kernel for s390x for iucv console at the moment.

I don't understand this report at all. Comment 45 of the very same bug says we have a patch which is also included in kernel 5.8.

openQA test in scenario opensuse-Tumbleweed-DVD-s390x-textmode-server@s390x-zVM-vswitch-l2 fails in [bootloader_s390](https://openqa.opensuse.org/tests/1507418/modules/ bootloader_s390/steps/4)

It says: bsc#1156053 - hardened_usercopy=off to avoid "/dev/hvc0: cannot get controlling tty: Operation not permitted" (Kernel memory overwrite attempt detected to SLUB object - illegal operation) which comes from bootloader_s390.pm if get_var('WORKAROUND_BUGS') =~ 'bsc1156047'.

## Test suite description The base test suite is used for job templates defined in YAML documents. It has no settings of its own. ... ## Expected result

no iucvconn failure

I fail to see the failure. What failure are you talking about? -- You are receiving this mail because: You are the assignee for the bug.