On Tue, 31 Aug 2010, Justin Piszcz wrote:
Hi Adam and LSI, LSI got back to me, they said to try their latest firwmare and that the high I/O wait was solved in that release. # tw_cli /c0 show all | grep -i firmware /c0 Firmware Version = FE9X 4.10.00.016 # tw_cli /c1 show all | grep -i firmware /c1 Firmware Version = FE9X 4.10.00.016 I upgraded to the newest firmware, 2.6.34 remains solid. However, when I moved to 2.6.35, the high I/O weight and system freezes recur. Has anyone not noticed this? I have two different controllers, a 4 and 16 port 9650SE, both with BBUs, one with a RAID-1 the other with a RAID-6 and I've never had any problems like this before (this high I/O wait/ctrl reset) until I moved to 2.6.35. There is something wrong/happening here in 2.6.35 that causes the system to become unresponsive and reset the controllers under high load. Prior to 2.6.35, the problem does not exist, I have confirmed this on both firmwares now. Could the lock/unlock be causing the issue? Again, in 2.6.34, there are no latency problems or controller resets. 3ware diff: --- linux-2.6.34.6/drivers/scsi/3w-9xxx.c 2010-08-26 19:44:38.000000000 -0400 +++ linux-2.6.35.4/drivers/scsi/3w-9xxx.c 2010-08-26 19:47:12.000000000 -0400 - Written By: Adam Radford <linuxraid@xxxxxxxx> - Modifications By: Tom Couch <linuxraid@xxxxxxxx> + Written By: Adam Radford <linuxraid@xxxxxxx> + Modifications By: Tom Couch <linuxraid@xxxxxxx> + Copyright (C) 2010 LSI Corporation. - linuxraid@xxxxxxxx + linuxraid@xxxxxxx - http://www.amcc.com + http://www.lsi.com + 2.26.02.014 - Force 60 second timeout default. -#define TW_DRIVER_VERSION "2.26.02.013" +#define TW_DRIVER_VERSION "2.26.02.014" -MODULE_AUTHOR ("AMCC"); +MODULE_AUTHOR ("LSI"); -static int twa_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg); +static long twa_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg); - .ioctl = twa_chrdev_ioctl, + .unlocked_ioctl = twa_chrdev_ioctl, -static int twa_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) +static long twa_chrdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) + struct inode *inode = file->f_path.dentry->d_inode; + lock_kernel(); + + unlock_kernel(); +/* This function gets called when a disk is coming on-line */ +static int twa_slave_configure(struct scsi_device *sdev) +{ + /* Force 60 second timeout */ + blk_queue_rq_timeout(sdev->request_queue, 60 * HZ); + + return 0; +} /* End twa_slave_configure() */ + + .slave_configure = twa_slave_configure, -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
