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[72.10.149.16]) by smtp.gmail.com with ESMTPSA id ct5-20020a056214178500b0065aff6b49afsm238598qvb.110.2023.10.09.20.51.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Oct 2023 20:51:07 -0700 (PDT) From: Maxim Cournoyer In-Reply-To: <874jizcsci.fsf@systemreboot.net> (Arun Isaac's message of "Tue, 10 Oct 2023 00:02:21 +0100") References: <87leddv6p2.fsf@gmail.com> <87jzrxhkmn.fsf@gmail.com> <874jizcsci.fsf@systemreboot.net> Date: Mon, 09 Oct 2023 23:51:06 -0400 Message-ID: <87y1gb5e51.fsf@gmail.com> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain 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-Flow: FLOW_IN X-Migadu-Country: US X-Migadu-Spam-Score: 2.82 X-Spam-Score: 2.82 X-Migadu-Queue-Id: 89A8344125 X-Migadu-Scanner: mx2.migadu.com X-TUID: A+CWGIinDeU0 Hi Arun, Arun Isaac writes: > Hi Maxim, > > Thanks for monitoring mumi. I'm not sure why these mumi crashes are > happening. I can think of two leads to start working on. > > 1. I see many lines such as those below that warn of garbage collection > issues with "repeated allocations of large blocks". I am not sure, but > this sounds like some limitation of the guile garbage collector. I > suspect these warnings arise because the guile-email parser thrashes the > garbage collector too much. I could look into rewriting parts of > guile-email to be more careful with memory use. > > 2023-09-09 16:21:00 GC Warning: Repeated allocation of very large block (appr. size 16777216): > 2023-09-09 16:21:00 May lead to memory leak and poor performance > 2023-09-09 16:30:24 GC Warning: Repeated allocation of very large block (appr. size 16138240): > 2023-09-09 16:30:24 May lead to memory leak and poor performance > 2023-09-09 16:39:11 GC Warning: Repeated allocation of very large block (appr. size 16781312): > 2023-09-09 16:39:11 May lead to memory leak and poor performance Perhaps that could be related, but I have no such experience to corroborate unfortunately. > 2. If there is a specific query that causes mumi to crash, I'd like to > find out. This could be a GraphQL query. Unfortunately the actual > GraphQL document lives in the query part of the URI, and we don't log > the query part. I can patch mumi to log the query part. > > WDYT? I think adding more logging to narrow where the problem is happening would be a fine action to take here! -- Thanks, Maxim