From: Christophe Leroy <christophe.leroy@csgroup.eu>
To: Will Springer <skirmisher@protonmail.com>, linuxppc-dev@lists.ozlabs.org
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, 12 Jun 2020 07:13:08 +0200 [thread overview]
Message-ID: <e395b07e-c515-9167-0799-32181e767721@csgroup.eu> (raw)
In-Reply-To: <1787237.g5d078U9FE@sheen>
Le 06/06/2020 à 01:54, Will Springer a écrit :
> 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.
>
Does it breaks only ppc64le vdso or also ppc64 (be) vdso ?
I never had a chance to run any test on ppc64 as I only have a kernel
cross compiler.
Would you have a chance to build and run vdsotest from
https://github.com/nathanlynch/vdsotest ?
Thanks
Christophe
next prev parent reply other threads:[~2020-06-12 5:13 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
2020-06-12 5:13 ` Christophe Leroy [this message]
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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