Re: [PATCH RFC 0/3] drivers/char: remove /dev/kmem for good

2021-03-31 Thread Michal Hocko
On Wed 31-03-21 17:08:03, Enrico Weigelt, metux IT consult wrote: > On 19.03.21 18:33, Sebastian Andrzej Siewior wrote: > > On 2021-03-19 10:14:02 [-0700], Linus Torvalds wrote: > > > On Fri, Mar 19, 2021 at 7:35 AM David Hildenbrand > > > wrote: > > > > > > > > Let's start a discussion if

Re: [PATCH RFC 0/3] drivers/char: remove /dev/kmem for good

2021-03-31 Thread Enrico Weigelt, metux IT consult
On 19.03.21 18:33, Sebastian Andrzej Siewior wrote: On 2021-03-19 10:14:02 [-0700], Linus Torvalds wrote: On Fri, Mar 19, 2021 at 7:35 AM David Hildenbrand wrote: Let's start a discussion if /dev/kmem is worth keeping around and fixing/maintaining or if we should just remove it now for good.

Re: [PATCH RFC 0/3] drivers/char: remove /dev/kmem for good

2021-03-23 Thread David Hildenbrand
On 23.03.21 14:16, Greg Kroah-Hartman wrote: On Fri, Mar 19, 2021 at 03:34:49PM +0100, David Hildenbrand wrote: Let's start a discussion if /dev/kmem is worth keeping around and fixing/maintaining or if we should just remove it now for good. More details / findings in patch #1. Patch #2 and #3

Re: [PATCH RFC 0/3] drivers/char: remove /dev/kmem for good

2021-03-23 Thread Greg Kroah-Hartman
On Fri, Mar 19, 2021 at 03:34:49PM +0100, David Hildenbrand wrote: > Let's start a discussion if /dev/kmem is worth keeping around and > fixing/maintaining or if we should just remove it now for good. > > More details / findings in patch #1. Patch #2 and #3 perform minor cleanups > based on

Re: [PATCH RFC 0/3] drivers/char: remove /dev/kmem for good

2021-03-22 Thread Steven Rostedt
On Mon, 22 Mar 2021 11:08:47 +0100 David Hildenbrand wrote: > > Wonder if "echo c > /proc/sysrq-trigger" already existed and would have > worked back then. :) > > Looks like sysrq-c was added in 2005: commit 86b1ae38c0a62 ("kdump: sysrq trigger mechanism for kexec based crashdumps") Thus

Re: [PATCH RFC 0/3] drivers/char: remove /dev/kmem for good

2021-03-22 Thread Michal Hocko
On Fri 19-03-21 10:14:02, Linus Torvalds wrote: > On Fri, Mar 19, 2021 at 7:35 AM David Hildenbrand wrote: > > > > Let's start a discussion if /dev/kmem is worth keeping around and > > fixing/maintaining or if we should just remove it now for good. > > I'll happily do this for the next merge

Re: [PATCH RFC 0/3] drivers/char: remove /dev/kmem for good

2021-03-22 Thread David Hildenbrand
On 19.03.21 19:10, Steven Rostedt wrote: On Fri, 19 Mar 2021 15:34:49 +0100 David Hildenbrand wrote: Let's start a discussion if /dev/kmem is worth keeping around and fixing/maintaining or if we should just remove it now for good. The last time I used /dev/kmem was in 2003. While in

Re: [PATCH RFC 0/3] drivers/char: remove /dev/kmem for good

2021-03-22 Thread David Hildenbrand
On 19.03.21 18:14, Linus Torvalds wrote: On Fri, Mar 19, 2021 at 7:35 AM David Hildenbrand wrote: Let's start a discussion if /dev/kmem is worth keeping around and fixing/maintaining or if we should just remove it now for good. I'll happily do this for the next merge window, but would

Re: [PATCH RFC 0/3] drivers/char: remove /dev/kmem for good

2021-03-19 Thread James Troup
Linus Torvalds writes: > On Fri, Mar 19, 2021 at 7:35 AM David Hildenbrand wrote: >> >> Let's start a discussion if /dev/kmem is worth keeping around and >> fixing/maintaining or if we should just remove it now for good. > > I'll happily do this for the next merge window, but would really want

Re: [PATCH RFC 0/3] drivers/char: remove /dev/kmem for good

2021-03-19 Thread Steven Rostedt
On Fri, 19 Mar 2021 15:34:49 +0100 David Hildenbrand wrote: > Let's start a discussion if /dev/kmem is worth keeping around and > fixing/maintaining or if we should just remove it now for good. The last time I used /dev/kmem was in 2003. While in Germany, my home firewall (in the US) got

Re: [PATCH RFC 0/3] drivers/char: remove /dev/kmem for good

2021-03-19 Thread Sebastian Andrzej Siewior
On 2021-03-19 10:14:02 [-0700], Linus Torvalds wrote: > On Fri, Mar 19, 2021 at 7:35 AM David Hildenbrand wrote: > > > > Let's start a discussion if /dev/kmem is worth keeping around and > > fixing/maintaining or if we should just remove it now for good. > > I'll happily do this for the next

Re: [PATCH RFC 0/3] drivers/char: remove /dev/kmem for good

2021-03-19 Thread Linus Torvalds
On Fri, Mar 19, 2021 at 7:35 AM David Hildenbrand wrote: > > Let's start a discussion if /dev/kmem is worth keeping around and > fixing/maintaining or if we should just remove it now for good. I'll happily do this for the next merge window, but would really want distros to confirm that they

Re: [PATCH RFC 0/3] drivers/char: remove /dev/kmem for good

2021-03-19 Thread David Hildenbrand
On 19.03.21 15:34, David Hildenbrand wrote: Let's start a discussion if /dev/kmem is worth keeping around and fixing/maintaining or if we should just remove it now for good. More details / findings in patch #1. Patch #2 and #3 perform minor cleanups based on removed /dev/kmem support. As some

[PATCH RFC 0/3] drivers/char: remove /dev/kmem for good

2021-03-19 Thread David Hildenbrand
Let's start a discussion if /dev/kmem is worth keeping around and fixing/maintaining or if we should just remove it now for good. More details / findings in patch #1. Patch #2 and #3 perform minor cleanups based on removed /dev/kmem support. Only compile-tested on x86-64 -- good enough for