Date: Mon, 30 Mar 2009 15:08:25 +0400 From: Vladimir Ermakov <samflanker@gmail.com> To: freebsd-scsi@freebsd.org Subject: aac does not respond with SCHED_ULE Message-ID: <49D0A829.1070702@gmail.com>
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continuation of the old topic http://lists.freebsd.org/pipermail/freebsd-hackers/2009-March/028037.html Hi, all. Describe my problem: Using the logical drive (RAID-10) on Adaptec 5805 [firmware build: 16501]. Try to read a file from this logical drive. As a result, the controller does not respond. I found a reason. The problem in using the scheduler SCHED_ULE with the aac driver. Shows the results of my experiments. system | scheduler | operation | result 7.1-RELEASE amd64 | SCHED_ULE | read a file | failed (controller does not respond) 7.1-RELEASE amd64 | SCHED_4BSD | read a file | passed ===================================== # uname -a FreeBSD sys3 7.1-RELEASE-p4 FreeBSD 7.1-RELEASE-p4 #8: Mon Mar 30 11:38:10 CEST 2009 root@sys3:/usr/obj/usr/src/sys/SYS3 amd64 # cat /var/db/mysql/ibdata1 > /dev/null # less /var/log/messages Mar 22 20:20:12 sys3 kernel: aac0: COMMAND 0xffffffff808599e0 TIMEOUT AFTER 50 SECONDS Mar 22 20:20:12 sys3 kernel: aac0: COMMAND 0xffffffff808569c0 TIMEOUT AFTER 50 SECONDS Mar 22 20:20:32 sys3 kernel: aac0: COMMAND 0xffffffff80859dd0 TIMEOUT AFTER 70 SECONDS Mar 22 20:20:32 sys3 kernel: aac0: COMMAND 0xffffffff808599e0 TIMEOUT AFTER 70 SECONDS Mar 22 20:20:32 sys3 kernel: aac0: COMMAND 0xffffffff808569c0 TIMEOUT AFTER 70 SECONDS Mar 22 20:20:52 sys3 kernel: aac0: COMMAND 0xffffffff80859dd0 TIMEOUT AFTER 90 SECONDS Mar 22 20:20:52 sys3 kernel: aac0: COMMAND 0xffffffff808599e0 TIMEOUT AFTER 90 SECONDS Mar 22 20:20:52 sys3 kernel: aac0: COMMAND 0xffffffff808569c0 TIMEOUT AFTER 90 SECONDS Mar 22 20:21:12 sys3 kernel: aac0: COMMAND 0xffffffff80859dd0 TIMEOUT AFTER 111 SECONDS Mar 22 20:21:12 sys3 kernel: aac0: COMMAND 0xffffffff808599e0 TIMEOUT AFTER 111 SECONDS Mar 22 20:21:12 sys3 kernel: aac0: COMMAND 0xffffffff808569c0 TIMEOUT AFTER 111 SECONDS # arcconf GETCONFIG 1 Controllers found: 1 ---------------------------------------------------------------------- Controller information ---------------------------------------------------------------------- Controller Status : Optimal Channel description : SAS/SATA Controller Model : Adaptec 5805 Controller Serial Number : xxxxxxxxxxxxxxx Physical Slot : 6 Temperature : 82 C/ 179 F (Normal) Installed memory : 512 MB Copyback : Disabled Background consistency check : Disabled Automatic Failover : Enabled Global task priority : High Performance Mode : Default/Dynamic Stayawake period : Disabled Spinup limit internal drives : 0 Spinup limit external drives : 0 Defunct disk drive count : 0 Logical devices/Failed/Degraded : 1/0/0 -------------------------------------------------------- Controller Version Information -------------------------------------------------------- BIOS : 5.2-0 (16501) Firmware : 5.2-0 (16501) Driver : 5.2-0 (16501) Boot Flash : 5.2-0 (16501) -------------------------------------------------------- Controller Battery Information -------------------------------------------------------- Status : Optimal Over temperature : No Capacity remaining : 100 percent Time remaining (at current draw) : 1 days, 20 hours, 7 minutes *** THX /Vladimir Ermakov
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