Date: Wed, 7 Aug 2019 15:38:30 +0300 From: Andriy Gapon <avg@FreeBSD.org> To: FreeBSD Current <freebsd-current@freebsd.org>, freebsd-scsi@freebsd.org Subject: dump on mmcsd Message-ID: <8890dfbc-e2c0-df61-5136-5748d57b203a@FreeBSD.org>
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Does mmcsd support kernel crash dumping? >From my experience it does not. Any attempt to dump to an SD card leads to a hang with no diagnostic. Maybe that depends on a controller? >From reading the code, it seems that mmcsd_dump calls into the regular write path and I could not find any special handling for the post-crash environment (like polling instead of interrupts, etc). Also, I see that mmc_da.c does not provide a dump method at the moment. -- Andriy Gapon
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