Date: Thu, 04 Dec 2014 06:23:47 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 195349] CAM status: Command timeout since upgrade to 10.1 Message-ID: <bug-195349-8-Fy1tjGYiYs@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-195349-8@https.bugs.freebsd.org/bugzilla/> References: <bug-195349-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195349 --- Comment #10 from olivier@cochard.me --- I reach to finish an 12 hours ZFS scrub by disabling MSI interrupts for AHCI ! (thanks mav@ for the temporary workaround). Here is how to do it: echo 'hint.ahci.0.msi="0"' >> /boot/loader.conf shutdown -r now Once rebooted, check that `vmstat -i` report ahci0 using interrupt below 256. Like this example: root@nas:~ # vmstat -i interrupt total rate irq17: ehci0 ehci1+ 19403 4 irq18: ohci0 ohci1+ 4 0 irq19: ahci0 3908 0 irq256: hpet0:t0 112433 26 irq257: hpet0:t1 33742 8 irq260: bge0 3354 0 Total 172844 41 With this workaround, ZFS scrubbing is finished without any "Command timeout": root@nas:~ # zpool status pool: storage state: ONLINE scan: scrub repaired 0 in 11h55m with 0 errors on Thu Dec 4 01:29:42 2014 config: NAME STATE READ WRITE CKSUM storage ONLINE 0 0 0 raidz1-0 ONLINE 0 0 0 ada0p1 ONLINE 0 0 0 ada1p1 ONLINE 0 0 0 ada2p1 ONLINE 0 0 0 ada3p1 ONLINE 0 0 0 ada4p1 ONLINE 0 0 0 Can someone test this workaround and report its result too ? -- You are receiving this mail because: You are the assignee for the bug.
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