klibc - Feb 2022 - qemu-user-static: mis-emulates something to do with process/signal handling (m68k, s390x, …)

retitle 925358 qemu-user-static: mis-emulates something to do with
process/signal handling (m68k, s390x, ?)
affects 925358 klibc-dev
thanks

This still happens. (And retitling because I almost filed a bug
against klibc again? oops?)

Look for ?mtest-external? (second occurrence) in:
https://buildd.debian.org/status/fetch.php?pkg=mksh&arch=m68k&ver=59c-16&stamp=1643675884&raw=0

Incidentally, the last buildd build on which this worked was an ARAnyM
one which I ran myself, back then.

For some reason, this does work with glibc and musl, so perhaps there
*is* a bug or? at least a chance to work around maybe? in klibc?

bye,
//mirabilos
-- 
Support mksh as /bin/sh and RoQA dash NOW!
? src:bash (406 (433) bugs: 0 RC, 275 (295) I&N, 131 (138) M&W, 0
F&P) + 208
? src:dash (91 (106) bugs: 0 RC, 51 (55) I&N, 40 (51) M&W, 0 F&P) +
63 ubu
? src:mksh (1 bug: 0 RC, 0 I&N, 1 M&W, 0 F&P)
dash has two RC bugs they just closed because they don?t care about quality?

On Tue, 2022-02-01 at 16:23 +0000, Thorsten Glaser
wrote:
> retitle 925358 qemu-user-static: mis-emulates something to do with
process/signal handling (m68k, s390x, ?)
> affects 925358 klibc-dev
> thanks
> 
> This still happens. (And retitling because I almost filed a bug
> against klibc again? oops?)
> 
> Look for ?mtest-external? (second occurrence) in:
>
https://buildd.debian.org/status/fetch.php?pkg=mksh&arch=m68k&ver=59c-16&stamp=1643675884&raw=0
> 
> Incidentally, the last buildd build on which this worked was an ARAnyM
> one which I ran myself, back then.
> 
> For some reason, this does work with glibc and musl, so perhaps there
> *is* a bug or? at least a chance to work around maybe? in klibc?
klibc's signal handling is probably a bit different from the others, 
and it certainly has been buggy on some architectures in the past.  It
seems to be solid now on real hardware.

I regularly build and test klibc across most supported architectures,
using QEMU, and have had to use a locally patched version due to
multiple regressions:
<https://git.kernel.org/pub/scm/linux/kernel/git/bwh/klibc-maint.git/plain/status.md>.

Ben.

-- 
Ben Hutchings
Time is nature's way of making sure that
everything doesn't happen at once.
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