>Number: 174684 >Category: kern >Synopsis: 3dm2 (or smartctl) triggers a kernel panic >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Dec 24 15:40:00 UTC 2012 >Closed-Date: >Last-Modified: >Originator: Shunsuke Suganuma >Release: 9.1-PRERELEASE >Organization: >Environment: 9.1-PRERELEASE FreeBSD 9.1-PRERELEASE #1 r244649M: amd64 with LSI 3ware 9750 SAS/SATA Storage Controller >Description: 3dm2 or smartmontools(smartctl) with 3ware 9750 (tws driver) triggers a kernel panic, when INVARIANTS/INVARIANT_SUPPORT are set as the kernel option.
[3dm2] installed from ports [smartmontools] installed from ports (For supporting tws, I've modified some of the code based on the info obtained here: http://sourceforge.net/apps/trac/smartmontools/ticket/236) Panic example: <118>root{/}% smartctl -a --device=3ware,0 /dev/tws0 <118>smartctl 6.0 2012-10-10 r3643 [FreeBSD 9.1-PRERELEASE amd64] (local build) <118>Copyright (C) 2002-12, Bruce Allen, Christian Franke, www.smartmontools.org <118> panic: sleepq_signal: invalid NULL wait channel cpuid = 6 KDB: stack backtrace: #0 0xffffffff80830bf6 at kdb_backtrace+0x66 #1 0xffffffff807fa558 at panic+0x1d8 #2 0xffffffff8083b1a8 at sleepq_signal+0xf8 #3 0xffffffff80803267 at wakeup_one+0x27 #4 0xffffffff806a907c at tws_ioctl+0x54c #5 0xffffffff8074f00a at devfs_ioctl_f+0x7a #6 0xffffffff80844e0f at kern_ioctl+0xcf #7 0xffffffff8084509d at sys_ioctl+0xfd #8 0xffffffff80a9e211 at amd64_syscall+0x2d1 #9 0xffffffff80a88d27 at Xfast_syscall+0xf7 Uptime: 5m20s Dumping 722 out of 16338 MB:..3%..12%..23%..31%..43%..51%..62%..71%..82%..91% >How-To-Repeat: 1. build and install the kernel with: options INVARIANTS options INVARIANT_SUPPORT 2. install ports/sysutils/3dm 2.11.00.019 3. run 3dm2 with some appropriate config, then panic. >Fix: The following change seems to prevent the panic. (but I don't know if it's the correct fix for the problem.) src/sys/dev/tws/tws_user.c: @L208 in tws_passthru() [before] wakeup_one(sc->chan); [after] if ( sc->chan != NULL ) wakeup_one(sc->chan); >Release-Note: >Audit-Trail: >Unformatted: _______________________________________________ freebsd-bugs@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "freebsd-bugs-unsubscr...@freebsd.org"
