[Bug 186346] [ahci] [regression] ahci(4) thousands of warnings Timeout on slot 22

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=186346

Chris Platts <chris.platts at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |chris.platts at gmail.com

--- Comment #4 from Chris Platts <chris.platts at gmail.com> ---
I'm not sure if this is the same root issue, but in case it's related, there's
a few of us seeing similar problems over at #201194

In my case, this is happening on two ahci controllers - 

ahci0: <ASMedia ASM1061 AHCI SATA controller> port
0xd800-0xd807,0xd400-0xd403,0xd000-0xd007,0xc800-0xc803,0xc400-0xc41f mem
0xfdfffc00-0xfdfffdff irq 18 at device 0.0 on pci1
ahci0: AHCI v1.20 with 2 6Gbps ports, Port Multiplier supported

ahci1: <AMD SB7x0/SB8x0/SB9x0 AHCI SATA controller> port
0xb000-0xb007,0xa000-0xa003,0x9000-0x9007,0x8000-0x8003,0x7000-0x700f mem
0xfdeffc00-0xfdefffff irq 19 at device 17.0 on pci0
ahci1: AHCI v1.20 with 6 3Gbps ports, Port Multiplier supported
ahci1: quirks=0x22000<ATI_PMP_BUG,1MSI>


(ahci0 is a PCIe add-in card, ahci1 is the motherboard's eSATA port).

Interestingly, I did _not_ have this issue in 10.0-RELEASE.  The problems only
started after a binary update to 10.2-RELEASE.

Here's the latest from my logs:

chris at trillian:~ % tail -n 25  /var/log/messages
Sep 30 15:17:59 trillian kernel: ahcich1: is 00000000 cs 00000000 ss 00000000
rs 00010000 tfd 451 serr 00000000 cmd 0004cf17
Sep 30 15:17:59 trillian kernel: ahcich0: Timeout on slot 5 port 0
Sep 30 15:17:59 trillian kernel: ahcich0: is 00000000 cs 00000020 ss 00000000
rs 00000020 tfd 451 serr 00000000 cmd 0004c517
Sep 30 15:17:59 trillian kernel: (ada0:ahcich0:0:0:0): SETFEATURES ENABLE
WCACHE. ACB: ef 02 00 00 00 40 00 00 00 00 00 00
Sep 30 15:17:59 trillian kernel: (ada0:ahcich0:0:0:0): CAM status: Command
timeout
Sep 30 15:17:59 trillian kernel: (ada0:ahcich0:0:0:0): Retrying command
Sep 30 15:18:19 trillian kernel: ahcich1: Timeout on slot 27 port 0
Sep 30 15:18:19 trillian kernel: ahcich1: is 00000000 cs 00000000 ss 00000000
rs 08000000 tfd 451 serr 00000000 cmd 0004da17
Sep 30 15:22:26 trillian kernel: ahcich0: Timeout on slot 12 port 0
Sep 30 15:22:26 trillian kernel: ahcich0: is 00000000 cs 00001000 ss 00000000
rs 00001000 tfd 451 serr 00000000 cmd 0004cc17
Sep 30 15:22:58 trillian kernel: ahcich1: Timeout on slot 12 port 0
Sep 30 15:22:58 trillian kernel: ahcich1: is 00000000 cs 00000000 ss 00000000
rs 00001000 tfd 451 serr 00000000 cmd 0004cb17
Sep 30 15:22:58 trillian kernel: ahcich0: Timeout on slot 17 port 0
Sep 30 15:22:58 trillian kernel: ahcich0: is 00000000 cs 00020000 ss 00000000
rs 00020000 tfd 451 serr 00000000 cmd 0004d117
Sep 30 15:22:58 trillian kernel: (ada0:ahcich0:0:0:0): SETFEATURES ENABLE
WCACHE. ACB: ef 02 00 00 00 40 00 00 00 00 00 00
Sep 30 15:22:58 trillian kernel: (ada0:ahcich0:0:0:0): CAM status: Command
timeout
Sep 30 15:22:58 trillian kernel: (ada0:ahcich0:0:0:0): Retrying command
Sep 30 15:23:19 trillian kernel: ahcich1: Timeout on slot 23 port 0
Sep 30 15:23:19 trillian kernel: ahcich1: is 00000000 cs 00000000 ss 00000000
rs 00800000 tfd 451 serr 00000000 cmd 0004d617

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