Opened 14 years ago
Closed 14 years ago
#261 closed defect (fixed)
After devman is run, dp8390 gets killed while reading from an I/O port
| Reported by: | Jakub Jermář | Owned by: | |
|---|---|---|---|
| Priority: | major | Milestone: | 0.4.3 |
| Component: | helenos/kernel/ia32 | Version: | |
| Keywords: | Cc: | ||
| Blocker for: | Depends on: | ||
| See also: |
Description
On the Qemu/ia32 machine with PCI:
If dp8390 starts when devman and its drivers are already running, it gets killed by the kernel during an attempt to read from an I/O port due to a general protection fault.
When devman is not run, then the same version of dp8390 can touch the I/O ports without being killed.
This is reproducible in mainline,656.
Change History (2)
comment:1 by , 14 years ago
comment:2 by , 14 years ago
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
Fixed in changeset:mainline,702.
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The expected behavior should be either that in both scenarios the I/O operation succeeds or, if beyond the enabled I/O range, generates the fault.