One process which would not die force me to power-cycle server and ALL UFS SUJ FSes are completely broken after that AGAIN!

[Chris H]

> Hello, Freebsd-fs.
>
>  On my 10-STABLE (r263965) system transmission-daemon stops to work, could not be
> killed (waits forever in STOP state after "kill -KILL), kernel reports about
> overfilled accept TCP queue for its socket (sonewconn: pcb 012345678FFFFFFF: Listen queue
> overflow).
>
>  Try "shutdown -r now", process aborted due to process which would not die,
> nothing could be done: system doesn't react on keyboard after that.

Does using halt work better?

--Chris

>
>  Wait one hour (!). No result, only more "Listen queue overflow" messages on
> console.
>
>  Power-off. Power-on.
>
>  All UFS2 filesystems can not be recovered with using of automated fsck, due
> to journal/softupdate inconsistencies. I need to run "fsck -f" TWICE for
> each of them (as first run ask to re-run fsck).
>
>  Please note, they are filesystems on MBR slice + BSD label on simple SATA
> disk attached to chipset port, no RAID, no "strange" GEOM modules, nothing
> fancy. Plain and easy install -- MBR with one slice, BSD label, filesystems,
> it's all.
>
>  So, there are two questions:
>
> (1) Does UFS2 SUJ works at all on STABLE system? Should it?!
>
> (2) How could I avoid such situation, how could I reboot system WITHOUT such
> disaster when one process refuse to die?
>
> --
> // Black Lion AKA Lev Serebryakov <lev at FreeBSD.org>
>
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