Opened 3 months ago
Last modified 3 months ago
#18922 closed bug
Pagefault and Kernel Panic with flaky USB setup — at Initial Version
| Reported by: | DrDebug42 | Owned by: | mmlr |
|---|---|---|---|
| Priority: | normal | Milestone: | R1/beta5 |
| Component: | Drivers/USB | Version: | R1/beta4 |
| Keywords: | Cc: | ||
| Blocked By: | Blocking: | ||
| Platform: | All |
Description
Hi,
for an experimental Haiku installation (R1/beta4) I used an older machine with a somewhat special USB setup for input (KVM, USB hub, ...). In a Linux installation on the same machine I have seen kernel error messages as well but on Haiku I frequently get Kernel Panics on the machine. The KDL does not react to any input, I presume this is because the panic seems to be related to USB. I have taken a picture of the KDL crash stack and will attach it to this ticket.
I tried to have a look at the source code and relate it to the crash stack and I think I found and fixed the issue in the following change:
https://review.haiku-os.org/c/haiku/+/7821
I tried several boots with a recent nightly build (anyboot on USB stick) including my fix without any issue. Trying the same nightly build without the fix resulted in a panic on the first try.
I will try to get at the syslog of the machine and include it here as well.
Best regards and many thanks
Timm
Screenshot of the KDL panic and callstack