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kdave / btrfs-progs

Development of userspace BTRFS tools
GNU General Public License v2.0
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(sig)STOPing and (sig)CONTinuing a send|receive pipe causes: ERROR: crc32 mismatch in command #719

Open calestyo opened 6 months ago

calestyo commented 6 months ago

Hey.

From [0]:

I have experienced this myself already some years ago and apparently others[1], too.

When stopping a send|receive pipeline (both on the same host, i.e. no ssh or so involved), and continuing it again, the whole thing dies immediately with an:

   ERROR: crc32 mismatch in command

Which is particularly annoying when one wanted to make a backup of 9TB and was nearly finished and had forgotten that this breaks. ;-)

Any way to have that fixed?

Cheers, Chris.

PS: kernel 6.5.10

calestyo commented 6 months ago

btw: It's clear that one cannot catch SIGSTOP, but if the problem itself (i.e. that the fails after SIGCONT would be unfixable, then maybe one could do something to at least prevent from accidental SIGSTOP, which may happen as easy as doing a Ctrl-Z in the terminal... I thought about temporarily disabling the stop CHAR, like via stty susp ''.