Looks like the problem below is caused by this commit:

dwmalone    2001/10/04 06:11:48 PDT

  Modified files:
    lib/libc/rpc         clnt_vc.c svc_vc.c
    sbin/mount_portalfs  activate.c
    sys/kern             uipc_socket.c uipc_usrreq.c
    sys/netgraph         ng_socket.c
    sys/sys              domain.h un.h
    usr.sbin/ppp         bundle.c

ACPI, which I previously wrongly blamed, isn't involved in any way. Right now I
am running a very recent -CURRENT, modulo this commit and more recent commits to
the same files, i.e. I updated using:

# cvs -q -R update -A -P -d
# cvs -q -R update -D'Oct 04 15:11' kern/kern_proc.c kern/kern_prot.c 
kern/uipc_socket.c kern/uipc_usrreq.c netgraph/ng_socket.c netinet/ip_fw.c 
netinet/raw_ip.c netinet/tcp_subr.c netinet/udp_usrreq.c sys/domain.h sys/socketvar.h 

All my problems are now gone. This sort of makes sense to me, as the culprit,
qmail, is quite socket intensive.

Anybody has any idea how to properly fix?


On Wed, Oct 24, 2001 at 03:31:51PM +0200, Andrea Campi wrote:
> Hi all,
> I am trying to diagnose a problem I've been having for a few weeks (I didn't
> report it earlier because I didn't have much time to hunt for it).
> The symptom is a total system freeze, i.e. I can't get into DDB. I can repeat
> it only with qmail, but of course I don't think it's qmail specific in any way;
> probably something to do with locking. To reproduce it I run:
> find . -type f | xargs mutt  (on my machine, all emails get delivered to me)
> A kernel from Oct 1 doesn't have this issue; a kernel from Oct 5 has. I'll
> start binary searching for a commit I can blame.
> Anybody seen anything like this?

            It is easier to fix Unix than to live with NT.

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