Description of problem: khubd segfaults when Keyspan USA-49W USB to 4 port serial converter disconnected while serial device(s) attached to it are transmitting/receiving data Version-Release number of selected component (if applicable): kernel-2.4.20-28.9 How reproducible: every time Steps to Reproduce: 1. Attach a Keyspan USA-49W or USA-49WLC 4 port USB to serial converter to a RHL box. 2. Attach serial device(s) to the Keyspan. 3. Disconnect Keyspan from USB port on computer while devices passing data. 4. Watch segfault that disables Keyspan until reboot. Actual results: segfault Expected results: hotplug deregisters device until replugged, then all is back functioning normally Additional info:
Created attachment 97150 [details] /var/log/messages snippet of segfault
Tom, does FC1 do same? You can install just the kernel, it is mostly compatible with RHL 9. Make sure to get 2.4.22-1.2140 or later.
Created attachment 97168 [details] New kernel oops kernel oops with fc1 2149 kernel.
Using kernel-2.4.22-1.2149.nptl, the behavior is more robust. A segfault still occurs, this time in apd, but hotplug seems to work. See new attachment for the oops.
Tom, please grab full dmesg after the crash and attach it (for two things - debug messages & general box setup like SMP)
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