I have learned a bit more about the problems I have been having with the DVD drive on my T30 laptop. When I have run the drive for an extended time (like 2 or 3 hours), I invariably have my system lock up because it can't malloc kernel memory for the ATAPI/CAM or ATA device. (Usually it's both.)
The only recovery seems to be to reboot the system. I suspect a memory leak because it seems to be linked to total amount of data transferred, even in multiple invocations of the program. Of course, once the kernel grabs VM, I guess it generally does not actually release it, but it should re-use the existing allocation and not keep allocating more. I posted my config and dmesg files yesterday. I have tried tuning KVM_SIZE stuff with no real success, just the loss of the ability to run with APM loaded. (This is possibly due to mis-tuning.) Any ideas on where I can look for more information? I'm going to try doing some monitoring with vmstat while running to see if I can spot anything, but I am not sure just what I am looking for. The VM system is not something I know much about, but I did read Terry Lambert's excellent message to current on KVM tuning and I'm hoping that this might help, but, if there really is a memory leak, tuning will not fix it. FWIW, this problem did not exist a few month ago prior to ATAng. -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: [EMAIL PROTECTED] Phone: +1 510 486-8634 _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "[EMAIL PROTECTED]"
