CheriABI git hanging with quarantining enabled
rwatson opened this issue · 1 comments
rwatson commented
When I try to clone a large repository onto a 2023.09.30 demo branch snapshot, and enable quarantining via sysctl security.cheri.runtime_quaranting_default=1, git often hangs during delta resolution:
robert@cheri-blossom:~% git clone https://github.com/CTSRD-CHERI/october2023-demo.git ~/october2023-demo`
Cloning into ‘/home/robert/october2023-demo’...
...
Resolving deltas: 54% (39/71)
The number 54% seems to vary a little but not much; I’ve also seen 55%.
procstat shows three git processes:
1488 1298 1488 1298 1 robert piperd FreeBSD ELF64C git
1489 1298 1488 1298 1 robert - FreeBSD ELF64C git
1491 1298 1488 1298 1 robert uwait FreeBSD ELF64C git
On face value, it seems like the process in uwait is the culprit.
Sometimes I get a crash instead, documented in #1882.
Disabling quarantining allows git to run to completion without problems.