Date: Wed, 01 Apr 2015 01:12:59 -0700 From: Chris Torek <torek@torek.net> To: Da Rock <freebsd-fs@herveybayaustralia.com.au>, freebsd-fs@freebsd.org Subject: Re: Delete a directory, crash the system Message-ID: <201504010813.t318CxQ7062913@elf.torek.net>
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> ... run fsck after a crash ... will allow you to recover from > media errors which it appears your system is suffering from. > SU+J is just a faster way of restarting but only works when you > do not have media errors. It's worth adding that this is also needed after some non-media memory errors (on systems lacking ECC, which -- alas -- includes my main home system) that corrupt bits in FFS bitmaps and directories, which are then written back to the (perfectly good) medium. (I had a bad DRAM chip that memtest86+ found for me, that until I replaced it caused broken file systems, that after I replaced it in turn caused panics followed by inappropriate journal recovery. There's really nothing to do here other than force the fsck.) Chris
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