From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-3.1 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 5800 invoked from network); 5 Jun 2020 23:54:50 -0000 Received: from mother.openwall.net (195.42.179.200) by inbox.vuxu.org with ESMTPUTF8; 5 Jun 2020 23:54:50 -0000 Received: (qmail 1278 invoked by uid 550); 5 Jun 2020 23:54:43 -0000 Mailing-List: contact musl-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Reply-To: musl@lists.openwall.com Received: (qmail 1248 invoked from network); 5 Jun 2020 23:54:43 -0000 Date: Fri, 05 Jun 2020 23:54:22 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail; t=1591401270; bh=JKks3LOMQ1NeFcSN16pzvwRRT3Htb5zFNM9rJBc29R8=; h=Date:To:From:Cc:Reply-To:Subject:In-Reply-To:References:From; b=oB6/36QHi6AAtZCYOwhv9MJGU255MwXbVqi+m45LvFc64eEfd4BFtFn9Rr31zX/x9 2WiqcUEOKS3COgk5iedPG2253+h0Uokp+DEiAgnWCXPt1iVi1HIJQ5h7Nlc8dUNYqX v1E1r/vfH2SKwgqUR7giFnNgD+e3hLZmmKk9VZ0g= To: linuxppc-dev@lists.ozlabs.org, Christophe Leroy From: Will Springer Cc: libc-alpha@sourceware.org, eery@paperfox.es, daniel@octaforge.org, musl@lists.openwall.com, binutils@sourceware.org, libc-dev@lists.llvm.org Message-ID: <1787237.g5d078U9FE@sheen> In-Reply-To: <2498690.q0ZmV6gNhb@sheen> References: <2047231.C4sosBPzcN@sheen> <8be94d2e-8e20-52b6-22e6-152b79a94139@csgroup.eu> <2498690.q0ZmV6gNhb@sheen> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: [musl] Re: ppc64le and 32-bit LE userland compatibility 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=3D173231 > > to switch powerpc to the Generic C VDSO. > >=20 > > Can you try and see whether it fixes your issue ? > >=20 > > Christophe >=20 > Sure thing, I spotted that after making the initial post. Will report > back with results. >=20 > 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=20 writing), plus the one-line signal handler patch. Had to rewind to the=20 state of powerpc/merge at the time of the mail before the patch would=20 apply, then cherry-picked to 5.6 until I realized the patchset used some=20 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= =20 LE. Bad news is it seems to have broken things on the 64-bit side=E2=80= =94in my=20 testing, Void kicks off runit but hangs after starting eudev, and in a=20 Debian Stretch system, systemd doesn't get to the point of printing=20 anything whatsoever. (I had to `init=3D/bin/sh` to confirm the date worked= =20 in ppcle, although in ppc64le running `date` also hung the system when it= =20 made the vdso call...) Not sure how to approach debugging that, so I'd=20 appreciate any pointers. Will [she/her]