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From: Will Springer <skirmisher@protonmail.com>
To: linuxppc-dev@lists.ozlabs.org,
	Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: libc-alpha@sourceware.org, eery@paperfox.es,
	daniel@octaforge.org, musl@lists.openwall.com,
	binutils@sourceware.org, libc-dev@lists.llvm.org
Subject: [musl] Re: ppc64le and 32-bit LE userland compatibility
Date: Fri, 05 Jun 2020 23:54:22 +0000	[thread overview]
Message-ID: <1787237.g5d078U9FE@sheen> (raw)
In-Reply-To: <2498690.q0ZmV6gNhb@sheen>

On Saturday, May 30, 2020 3:17:24 PM PDT Will Springer wrote:
> On Saturday, May 30, 2020 8:37:43 AM PDT Christophe Leroy wrote:
> > There is a series at
> > https://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=173231
> > to switch powerpc to the Generic C VDSO.
> > 
> > Can you try and see whether it fixes your issue ?
> > 
> > Christophe
> 
> Sure thing, I spotted that after making the initial post. Will report
> back with results.
> 
> Will [she/her]

Sorry for the wait, I just sat down to work on this again yesterday.

Tested this series on top of stable/linux-5.7.y (5.7.0 at the time of 
writing), plus the one-line signal handler patch. Had to rewind to the 
state of powerpc/merge at the time of the mail before the patch would 
apply, then cherry-picked to 5.6 until I realized the patchset used some 
functionality that didn't land until 5.7, so I moved it there.

Good news is that `date` now works correctly with the vdso call in 32-bit 
LE. Bad news is it seems to have broken things on the 64-bit side—in my 
testing, Void kicks off runit but hangs after starting eudev, and in a 
Debian Stretch system, systemd doesn't get to the point of printing 
anything whatsoever. (I had to `init=/bin/sh` to confirm the date worked 
in ppcle, although in ppc64le running `date` also hung the system when it 
made the vdso call...) Not sure how to approach debugging that, so I'd 
appreciate any pointers.

Will [she/her]




  reply	other threads:[~2020-06-05 23:54 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-29 19:03 [musl] " Will Springer
2020-05-29 19:24 ` Rich Felker
2020-05-30 22:56   ` Will Springer
2020-05-30 15:37 ` [musl] " Christophe Leroy
2020-05-30 22:17   ` Will Springer
2020-06-05 23:54     ` Will Springer [this message]
2020-06-12  5:13       ` Christophe Leroy
2020-05-30 19:22 ` Segher Boessenkool
2020-05-31  0:57   ` Will Springer
2020-05-31 20:42     ` Segher Boessenkool
2020-05-31 22:29       ` Daniel Kolesa
2020-06-02  1:36         ` Segher Boessenkool
2020-06-01 21:28 ` Joseph Myers
2020-06-01 21:36   ` Rich Felker
2020-06-01 23:26   ` Daniel Kolesa
2020-06-01 23:45     ` Joseph Myers
2020-06-01 23:55       ` Joseph Myers
2020-06-02  0:13         ` Daniel Kolesa
2020-06-02  0:11       ` Daniel Kolesa
2020-06-02 13:40         ` Joseph Myers
2020-06-02 14:23           ` Michal Suchánek
2020-06-02 15:13             ` Daniel Kolesa
2020-06-02 15:27               ` Michal Suchánek
2020-06-02 15:40                 ` Daniel Kolesa
2020-06-02 15:56                   ` Michal Suchánek
2020-06-04 17:20                 ` Segher Boessenkool
2020-06-04 17:12               ` Segher Boessenkool
2020-06-04 17:18                 ` Rich Felker
2020-06-04 17:33                   ` Segher Boessenkool
2020-06-04 17:46                     ` Rich Felker
2020-06-04 19:00                       ` David Edelsohn
2020-06-04 19:37                         ` Rich Felker
2020-06-04 20:39                     ` Daniel Kolesa
2020-06-04 21:10                       ` Segher Boessenkool
2020-06-04 21:43                         ` Daniel Kolesa
2020-06-04 22:08                           ` Joseph Myers
2020-06-04 22:26                             ` Daniel Kolesa
2020-06-05  0:02                               ` Segher Boessenkool
2020-06-04 23:42                             ` Segher Boessenkool
2020-06-04 23:35                           ` Segher Boessenkool
2020-06-05  2:18                             ` Daniel Kolesa
2020-06-05 17:27                               ` Segher Boessenkool
2020-06-05 17:50                                 ` Rich Felker
2020-06-05 23:45                                   ` Segher Boessenkool
2020-06-05 21:59                                 ` Daniel Kolesa
2020-06-06  0:12                                   ` Segher Boessenkool
2020-06-06  2:13                                     ` Daniel Kolesa
2020-06-02 14:52           ` Daniel Kolesa
2020-06-02  2:12       ` Segher Boessenkool
2020-06-02  2:17         ` Daniel Kolesa
2020-06-02 13:50         ` Joseph Myers
2020-06-02 17:47           ` Segher Boessenkool
2020-06-02  1:58     ` Segher Boessenkool
2020-06-02  2:09       ` Jeffrey Walton
2020-06-02  2:12       ` Daniel Kolesa
2020-06-02  2:36         ` Segher Boessenkool
2020-06-02  2:55           ` Daniel Kolesa
2020-06-02  1:42   ` Segher Boessenkool
2020-06-02  2:03     ` Daniel Kolesa

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