On Thu, Sep 17, 2009 at 01:34 +0200, H.J. Thomassen wrote: > Hello Greg - and cc. Denis Kirjanov > > On Wed, Sep 16, 2009 at 03:50:47PM -0700, Greg KH wrote: > > On Thu, Sep 17, 2009 at 01:16:29AM +0400, Denis Kirjanov <kirjanov@xxxxxxxxx wrote: > > > Good time of day. > > > I want to take on work related to the cowloop driver. Anybody else > > > involved with this? > > > > The original author is, you should also copy him. > > > > Attached is his latest version, if you could turn this into a patch > > against Linus's latest tree, that would be wonderful. Unfortunaly, I > > have to take a last-minute-business trip tomorrow and can't get to it > > for a few weeks :( > > > > > While loading the module I get an kernel crash. It seems that > > > something wrong with cowloop kernel thread. > > > > Handrik-Jan, have you heard of this? > > Yes, Denis told me so. He indicated that it was inside a call > to __blk_end_request_cur() and that's a call that you inserted > to replace a call to end_request(). From the way you substituted > these calls I assume that they are drop-in replacements? > > Tomorrow I hope to have a VM running with the newest kernel version > where I can start testing without porting the driver back to > end_request() c.s. > > > > > Denis, care to post a kernel oops trace? > Here is the crash dump: kernel BUG at block/blk-core.c:2043! invalid opcode: 0000 [#1] SMP last sysfs file: /sys/devices/virtual/block/cow0/removable EIP is at blk_finish_request+0x1af/0x1e0 Call Trace: add_disk_randomness __blk_end_request __blk_end_request_cur cowlo_daemon schedule_tail ret_from_fork autoremove_wake_function cowlo_daemon kernel_thread_helper _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
