Last week Trond reported a server crash in svc_rdma_sendto() that
seemed related to deferral of a request incoming on an RPC/RDMA
transport. A link to that report appears in the first patch below.
The first patch in this series addresses the crash, and the second
fixes a related observability crash. The other patches from v1
of this series have been postponed to 5.19.
Comments, opinions, and Reviewed-by's are appreciated!
Since v2:
- Fix "has unsafe dereference" warnings in patch 2/2
Since v1:
- Series trimmed down to just what will go to 5.18-rc
- 2nd patch re-worked so it can be backported to recent stable
- Addressed a few checkpatch.pl nits
---
Chuck Lever (2):
SUNRPC: Fix NFSD's request deferral on RDMA transports
SUNRPC: Fix the svc_deferred_event trace class
include/linux/sunrpc/svc.h | 1 +
include/trace/events/sunrpc.h | 7 ++++---
net/sunrpc/svc_xprt.c | 3 +++
net/sunrpc/xprtrdma/svc_rdma_recvfrom.c | 2 +-
4 files changed, 9 insertions(+), 4 deletions(-)
--
Chuck Lever
