From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030530 Description of problem: Because of kernel 2.4.20-18.9 bug #92193 and bug #96972 , I've reverted to kernel 2.4.20-13.9. After running file I/O on an external IEEE1394 attached hard drive, after a while (could be anything from 10 to 60 minutes) I usually get bus resets (effectively rendering external IEEE1394 storage useless) ; I don't know whether this is load related. Trying to recover from the bus reset (which also yields the external devices undetectable), I rmmod'ed sbp2, ohci1394 and ieee1394. On reloading these modules, I get an oops when modprobing sbp2 (see attachment). Version-Release number of selected component (if applicable): kernel-2.4.20-13.9 How reproducible: Always Steps to Reproduce: 1. file I/O on external IEEE1394, bus reset 2. umount /dev/sda{x} 3. rmmod sbp2 ohci1394 ieee1394 4. modprobe ieee1394 5. modprobe ohci1394 6. modprobe sbp2 Actual Results: Segmentation fault Kernel OOPS (also see bug #96972) Expected Results: sbp2 should load , allowing for the external IEEE1394 devices to be redetected. Additional info: IBM ThinkPad A30p ; lspci & lsmod : please see bug #96972 After experiencing this OOPS, I need to reboot the kernel to allow redetection. However, more often than not, after a warm boot the machine completely hard locks when the kernel loads ohci1394 : localhost kernel: ohci1394: $Rev: 693 $ Ben Collins <bcollins> localhost kernel: PCI: Found IRQ 11 for device 02:00.2 localhost kernel: PCI: Sharing IRQ 11 with 00:1d.2 localhost kernel: PCI: Sharing IRQ 11 with 00:1f.1 localhost kernel: PCI: Sharing IRQ 11 with 02:02.0 After a cold start (manual switch-off), the machine continues to operate with : ... (see above) localhost kernel: ohci1394_0: OHCI-1394 1.0 (PCI): IRQ=[11] MMIO=[c0201000-c02017ff] Max Packet=[2048] ... etc.
Created attachment 92262 [details] 2.4.20-13.9 oops when modprobing sbp2 Please advise whether James Goodwin <jamesg> (SBP2) or Ben Collins <bcollins> (OHCI1394) should be CC:'d ?
Upgraded to 2.6.1 ; WFM.