https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=216087
Bug ID: 216087
Summary: NFSv4.1 client recovery from NFSERR_BADSESSION might
starve recovery thread
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Created attachment 178895
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=178895&action=edit
Patch to give exclusive locker of nfsc_lock priority over shared lockers
When the NFSv4.1 client is doing recovery from a server crash/reboot, the
recovery thread "nfscl" must acquire an exclusive lock on the clientid
(nfsc_lock). This patch gives exclusive lockers priority over shared lockers,
so that the "nfscl" recovery won't be starved out (livelocked) by shared
lockers.
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