diff options
| author | Kevin Bowling <kbowling@FreeBSD.org> | 2026-09-03 11:31:42 +0000 |
|---|---|---|
| committer | Kevin Bowling <kbowling@FreeBSD.org> | 2026-09-17 00:01:22 +0000 |
| commit | b272b2a94d983900c94168c5f41256869b0371b1 (patch) | |
| tree | 41e8be97273ae71daee5c9163dfc2456f6087a28 /contrib/llvm-project/llvm/lib/DebugInfo/PDB/Native/NamedStreamMap.cpp | |
| parent | 0380d016d9ba407af12eb743b7c5806d49ddf848 (diff) | |
The Intel shared code can wait for firmware resources while holding its
OS abstraction locks. FreeBSD mapped these locks to mutexes, which
cannot be held across a voluntary sleep. Concurrent PF rebuilds
therefore trigger WITNESS when RSS profile updates contend for the
firmware change lock.
Map the shared-code lock abstraction to exclusive sx locks. This also
covers tunnel and flow-profile operations which can reach the same
firmware wait while serialized.
Validated with WITNESS on a dual port Intel E835. Sixteen CORE resets
rebuilt both PFs without lock warnings, reset failures, or watchdogs.
Ten interface down/up cycles and twenty promiscuous-filter cycles also
completed cleanly.
Reviewed by: erj
MFC after: 2 weeks
Sponsored by: BBOX.io
Differential Revision: https://reviews.freebsd.org/D59339
Diffstat (limited to 'contrib/llvm-project/llvm/lib/DebugInfo/PDB/Native/NamedStreamMap.cpp')
0 files changed, 0 insertions, 0 deletions