Project

General

Profile

Actions

Bug #2645

open

panic with dsched fq and ioprio

Added by jyoung15 about 10 years ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
Kernel
Target version:
Start date:
02/20/2014
Due date:
% Done:

0%

Estimated time:

Description

System panics under following conditions:

  1. sysctl dsched
    dsched.policies: noop fq
    dsched.debug: 0
    dsched.policy.default: fq
    dsched.policy.md0: noop
    dsched.policy.acd0: noop
    dsched.policy.10092514011426: noop
    dsched.policy.da0: fq
    dsched.policy.da1: fq
    dsched.policy._____WD-WCAT1H582396: fq
    dsched.policy.cd0: noop
    dsched.policy._____WD-WCAT1H604215: fq
    dsched.fq.version: 1.1
  1. cat ioprio_test.sh
    #!/bin/sh
    rm -f ioprio1 ioprio9 data_file1 data_file9
    dd if=/dev/random bs=1m count=1000 of=data_file1
    dd if=/dev/random bs=1m count=1000 of=data_file9
    time sh -c 'ioprio -n 1 dd if=data_file1 bs=1m count=1000 of=ioprio1; sync; echo ioprio1 done' &
    time sh -c 'ioprio -n 9 dd if=data_file9 bs=1m count=1000 of=ioprio9; sync; echo ioprio9 done' &
  1. ./ioprio_test.sh

(panics here)

Issue is reproducible. Using unmodified 3.6-RELEASE with HAMMER FS. Hardware is Dell PowerEdge R415 with LSI (mpt0) RAID card.

  1. uname -a
    DragonFly NNINPABE1NB02 3.6-RELEASE DragonFly v3.6.0-RELEASE #8: Fri Nov 22 13:22:00 PST 2013 :/usr/obj/build/home/justin/src/sys/X86_64_GENERIC x86_64

core.txt.0 and info.0 attached. vmcore.0 can be uploaded upon request.


Files

core.txt.0 (41.2 KB) core.txt.0 jyoung15, 02/20/2014 07:27 AM
info.0 (503 Bytes) info.0 jyoung15, 02/20/2014 07:27 AM

No data to display

Actions

Also available in: Atom PDF