Messages in this thread | | | Date | Wed, 19 Oct 2022 11:29:56 +0200 | From | Petr Vorel <> | Subject | Re: v6.1-rc1: Regression in notification of sethostname changes |
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Hi Torsten,
> Hello Petr,
> your commit
> commit bfca3dd3d0680fc2fc7f659a152234afbac26e4d > Author: Petr Vorel <pvorel@suse.cz> > Date: Thu Sep 1 21:44:03 2022 +0200
> kernel/utsname_sysctl.c: print kernel arch
> Print the machine hardware name (UTS_MACHINE) in /proc/sys/kernel/arch.
> This helps people who debug kernel with initramfs with minimal environment > (i.e. without coreutils or even busybox) or allow to open sysfs file > instead of run 'uname -m' in high level languages.
> broke the notification mechanism between the sethostname syscall and the pollers of /proc/sys/kernel/hostname.
> The table uts_kern_table is addressed within uts_proc_notify by the enum value, however no new enum value was added in "enum uts_proc".
> I noticed the problem when journald-systemd failed to detect hostname changes made with the sethostname syscall (as used by the hostname tool). > When setting the hostname through /proc/sys/kernel/hostname the poll notification was working.
Thanks a lot for your report, working on a fix! Andrew, Greg, sorry for a regression.
Kind regards, Petr
> Torsten
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