CommitterMark Johnston (markj) (1)
AuthorMark Johnston (markj) (1)
Branchesreleng/13.0 (1)


FreeBSD/src 3ec6820 (r342100) — sys/riscv/riscv trap.c

by Mark Johnston (markj) on ⎇
Add some more checking to the RISC-V page fault handler.

- Panic immediately if witness says we're holding non-sleepable locks.
  This helps ensure that we don't recurse on the pmap lock in
  pmap_fault_fixup().
- Panic if the kernel faults on a user address without setting an
  onfault handler.
- Panic if the fault occurred in a critical section or interrupt
  handler, like we do on other platforms.
- Fix some style issues in trap_pfault().

Reviewed by:    jhb
MFC after:      1 week
Sponsored by:   The FreeBSD Foundation
Differential Revision:  https://reviews.freebsd.org/D18561
DeltaFile
+22-18sys/riscv/riscv/trap.c
+22-181 files

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