haha I just explained 'sync; sync; sync; reboot' to one of our new staff and they're appalled
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Replying to @0xMatt
... now I wonder whether multiple sync calls might actually be required if you have disk image mounts through non-O_DIRECT loop devices. it looks like older mounts are at the head of &super_blocks, and iterate_supers() iterates forward...
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Replying to @tehjh
If you find a zero-day in filesystems based on sync race conditions I'm gonna facepalm so hard
1 reply 0 retweets 9 likes
Replying to @0xMatt
"data loss in rare cases" wouldn't exactly be the same thing as "zero-day" :P
4:43 PM - 23 Oct 2019
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