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[92.220.123.81]) by smtp.gmail.com with ESMTPSA id k6-20020a2e9206000000b002c128e4524dsm96707ljg.116.2023.10.19.15.36.48 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Thu, 19 Oct 2023 15:36:48 -0700 (PDT) Date: Fri, 20 Oct 2023 00:36:47 +0200 From: Olav Smorholm Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20230517 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: bug-guix-bounces+larch=yhetil.org@gnu.org X-Migadu-Country: US X-Migadu-Flow: FLOW_IN X-Migadu-Scanner: mx1.migadu.com X-Migadu-Spam-Score: 3.34 X-Spam-Score: 3.34 X-Migadu-Queue-Id: E118846F41 X-TUID: +RWTZyQC6xcA On Thu, Oct 19, 2023 at 06:29:07PM +0200, Olav Smorholm wrote: > On Thu, Oct 19, 2023 at 03:05:01PM +0200, Olav Smorholm wrote: > > On Wed, Oct 18, 2023 at 11:21:06PM +0200, Olav Smorholm wrote: > > > Tried to reproduce, but with no substitutes and no grafts. > > > Wed Oct 18 18:48:34 2023] mes[19410]: segfault at 0 ip 0000000001016085 sp 00000000ffff5044 error 6 in mes[1000000+18000] likely on CPU 4 (core 8, socket 0) > > > [Wed Oct 18 18:48:34 2023] Code: 60 01 01 e8 71 ef ff ff 83 c4 04 85 c0 b8 00 00 00 00 89 45 fc b8 00 00 00 00 bb 00 00 00 00 50 89 d8 8b 5d fc 01 d8 89 c3 58 <88> 03 85 c0 c9 c3 3a 00 61 73 73 65 72 74 20 66 61 69 6c 3a 20 00 > > > > > > Which should be the first, and perhaps only one before conf and tests. > > > Reported as guix binary requested with caveats that while GNU, i tend to opt > > > for UNIX crashy. and could be hard to chase with coincidence mixed in; > > > hard to chase. > > > > took much longer with --no-grafts and --no-substitutes, but this also > > showed up again, but not the seed. > > > > [Thu Oct 19 12:18:54 2023] xsltproc[5943]: segfault at 7fffff7fefe0 ip 00007ffff7b952ce sp 00007fffff7fefb0 error 6 in libc.so.6[7ffff7b2a000+167000] > > > > still fairly sure its from guix building. > > > > [Tue Oct 17 21:33:19 2023] process 'bootstrap-seeds/POSIX/x86/kaem-optional-seed' started with executable stack > > Reboot, and by not checking, into rebuild kernel without the pattern > init unsafe hardening options. For an hour and half, the only thing I > see is this: > Thu Oct 19 16:57:16 2023] process 'store/5srp88m0d10qxnb49c3sa2a186kjy6xz-tcc-boot-0.9.27/bin/tcc' started with executable stack > > Instead of the seed, and no mes segfaults, and will do this again. > It's a bit of a stretch to say I had a rodent i here segfaulted my way > out of, but I dont live in any of the relevant information structures > between compiler assembly, running code and debuggers. Nor familiarity > enough to say why tcc is said to be started with executable stack > instead of the seed as above. I am just fairly certain that something > isn't house clean in what is inherently complicated and bootstrap that > touches many fundamental things. > Another reboot with more hardening things: process 'store/9cfq2h8sa5f6cgrhdgadlxwkf00vmgf5-gcc-mesboot1-4.6.4/bin/gcc' started with executable stack and absolutely no segfaults. either bugs got more clever, or this isn't house clean.