[Bug 195349] CAM status: Command timeout since upgrade to 10.1

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195349

Ganael LAPLANCHE <martymac at FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |martymac at FreeBSD.org

--- Comment #2 from Ganael LAPLANCHE <martymac at FreeBSD.org> ---
Hi Olivier,

I confirm that regression too.

I encounter the exact same problem on my HP 658553-421 ProLiant MicroServer.
When trying to copy a lot of big files from another machine through NFS,
several disks suddenly become unavailable and are detached. It happens
randomly, a few hours after having started the copy.

After having rebooted the machine, zpool show no errors, neither does a
smartctl on each drive of the pool. I am able to start the copy again... until
the next timeouts.

# uname -a
FreeBSD tank.martymac.org 10.1-RELEASE FreeBSD 10.1-RELEASE #0 r274401: Tue Nov
11 21:02:49 UTC 2014    
root at releng1.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC  amd64

# pciconf -vl
[...]
ahci0 at pci0:0:17:0:      class=0x010601 card=0x1609103c chip=0x43911002 rev=0x40
hdr=0x00
    vendor     = 'Advanced Micro Devices [AMD] nee ATI'
    device     = 'SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode]'
    class      = mass storage
    subclass   = SATA
[...]

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