kern/72866: ALTQ code and queues seem to trigger crashes in FBSD
5.3-RC1
O. Hartmann
hartmann at mail.uni-mainz.de
Tue Oct 19 01:40:32 PDT 2004
>Number: 72866
>Category: kern
>Synopsis: ALTQ code and queues seem to trigger crashes in FBSD 5.3-RC1
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Oct 19 08:40:31 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator: O. Hartmann
>Release: FreeBSD 5.3-RC1 i386
>Organization:
Department of Geophysics, Johannes Gutenberg-Universitaet Mainz
>Environment:
System: FreeBSD edda.physik.uni-mainz.de 5.3-RC1 FreeBSD 5.3-RC1 #26: Sun Oct 17 10:48:55 UTC 2004 root at edda.physik.uni-mainz.de:/usr/obj/usr/src/sys/EDDA i386
Mainboard: ASUS CUR-DLS, SMP, 1GB RAM, SCSI (no ATA). Kernel config like GENERIC with some
extensions: using pf, ALTQ, SMP, PIM, MROUTING, disabled driver which I do not need
or use. Utilizing onboard fxp0 NIC or em0 NIC (64Bit PCI, Intel GBit Server NIC).
>Description:
Applying queues to network connections with /etc/pf.conf via 'altq' pushes the
likelyhood of crashes enormously! I recognized this on fxp0 and em0. Disabling
bandwith limiting in pf-config leaves the system more stable.
>How-To-Repeat:
Configure pf and ALTQ, use queues in /etc/pf.conf (maybe SMP should also be
used, but SMP triggers the problem more quickly).
>Fix:
Disable queues in pf.conf.
>Release-Note:
>Audit-Trail:
>Unformatted:
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