Re: kern/59663 (ffs_snapshot_read -> uvm_fault (or pool page empty) doing dump/restore with snapshot)

[email protected] Fri, 31 Jul 2026 16:03:32 +0000 (UTC)
Newsgroups gmane.os.netbsd.bugs
Message-ID <[email protected]>
Synopsis: ffs_snapshot_read -> uvm_fault (or pool page empty) doing dump/restore with snapshot

State-Changed-From-To: open->needs-pullups
State-Changed-By: [email protected]
State-Changed-When: Fri, 31 Jul 2026 16:03:31 +0000
State-Changed-Why:
Great, sounds like the mechanism of the deadlock is understood now, so
let's get this pulled up to 9, 10, and 11.

Sounds like ptyfs will avoid this problem for ssh, but without the
patch, revoke -- whether done explicitly by user programs, or in the
kernel when logging out of a non-pty tty -- will still trigger the
deadlock.