| created | 2020-11-27T03:43:06Z |
|---|---|
| begin | 2020-09-14T00:00:00Z |
| end | 2020-09-15T00:00:00Z |
| path | src/sys |
| commits | 13 |
| date | 2020-09-14T07:15:25Z | |||
|---|---|---|---|---|
| author | mpi | |||
| files | src/sys/sys/ktrace.h | log | diff | annotate |
| message | Fix comment, ktrace flags are per-process. | |||
| date | 2020-09-14T12:51:28Z | |||
|---|---|---|---|---|
| author | kettenis | |||
| files | src/sys/arch/amd64/amd64/trap.c | log | diff | annotate |
| message |
The uvm_map_inentry() check may sleep to grab the lock of the map. The fault address is read from cr2 in pageflttrap() which gets called after this check and if the check sleeps, cr2 is likely to be clobbered by a page fault in another process. Fix this by reading cr2 early and pass it to pageflttrap(). ok mpi@, semarie@, deraadt@ |
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| date | 2020-09-14T12:56:20Z | |||
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| author | deraadt | |||
| files | src/sys/arch/i386/i386/trap.c | log | diff | annotate |
| message |
similar to fix by kettenis on amd64: The uvm_map_inentry() check may sleep to grab the lock of the map. The fault address is read from cr2 in pageflttrap() which gets called after this check and if the check sleeps, cr2 is likely to be clobbered by a page fault in another process. Fix this by reading cr2 early and pass it to pageflttrap(). ok kettenis |
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| date | 2020-09-14T13:30:33Z | |||
|---|---|---|---|---|
| author | deraadt | |||
| files | src/sys/arch/sparc64/sparc64/emul.c | log | diff | annotate |
| message |
Delete some emulator code which has never been used on 64 bit sparc ok kettenis, test compile by kmos |
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| date | 2020-09-14T15:21:08Z | |||
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| author | deraadt | |||
| files | src/sys/dev/usb/umstc.c | log | diff | annotate |
| message |
umstc_intr is not in process context when adjusting wscons brightness. When brightness is pushed to 0, the backlight is disabled by some backend code which happens to sleep. Solve this by bouncing to process context via a task. ok kettenis |
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| date | 2020-09-14T18:23:32Z | |||
|---|---|---|---|---|
| author | deraadt | |||
| files | src/sys/arch/arm/arm/fault.c | log | diff | annotate |
| message |
perform the uvm_map_inentry() after the data_aborts handlers are executed as there is little purpose running them excessively. studied with kettenis while searching for "system registers read after sleeping in trap()" |
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| date | 2020-09-14T18:44:54Z | |||
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| author | krw | |||
| files | src/sys/scsi/sd.c | log | diff | annotate |
| message |
No need to check for SDEV_DYING as the first thing in both branches of an if/else. Just do it once before the if. Move the SC_DEBUG() documenting entry into sdopen() to before the various error bailouts. |
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| date | 2020-09-14T19:02:09Z | |||
|---|---|---|---|---|
| author | jasper | |||
| files | src/sys/dev/dt/dt_prov_static.c | log | diff | annotate |
| src/sys/kern/vfs_bio.c | log | diff | annotate | |
| message |
add three static probes for vfs: cleaner, bufcache_take and bufcache_rel. while here, swap two lines in bufcache_release() to put a KASSERT() first following the pattern in bufcache_take() ok beck@ mpi@ |
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| date | 2020-09-14T19:04:30Z | |||
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| author | kettenis | |||
| files | src/sys/arch/hppa/hppa/trap.c | log | diff | annotate |
| message |
When emulating reading from cr26 and cr27 on PCXS, simply set cr26 to zero and take the cr27 value that was saved in the trap frame. This matches what process_read_regs() does and prevents returning the wrong values if the uvm_map_inentry() checks sleeps trying to grab the vm_map read lock. ok miod@, deraadt@ |
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| date | 2020-09-14T19:05:23Z | |||
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| author | deraadt | |||
| files | src/sys/arch/sh/sh/trap.c | log | diff | annotate |
| message |
Ensure the SH_(TRA)) register is read before a potential sleep in trap() for same reasons as as recent bug diagnosed in amd64, i386, hppa, powerpc64... |
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| date | 2020-09-14T19:44:01Z | |||
|---|---|---|---|---|
| author | kettenis | |||
| files | src/sys/arch/arm64/arm64/trap.c | log | diff | annotate |
| message |
Do the uvm_map_inentry() check in data_abort() after we have done the branch predictor flush. ok deraadt@ |
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| date | 2020-09-14T20:28:41Z | |||
|---|---|---|---|---|
| author | deraadt | |||
| files | src/sys/arch/sparc64/include/cpu.h | log | diff | annotate |
| message | emuinstr() proto dies also after emul.c cleanup; from miod | |||
| date | 2020-09-14T20:31:09Z | |||
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| author | kettenis | |||
| files | src/sys/uvm/uvm_map.c | log | diff | annotate |
| message |
Since the issues with calling uvm_map_inentry_fix() without holding the kernel lock are fixed now, push the kernel lock down again. ok deraadt@ |
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