Date: Thu, 8 Oct 2020 21:58:09 +0000 From: "Leverett, Bruce" <bleverett@panasas.com> To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: kernel: page fault in unp_pcb_owned_lock2_slowpath Message-ID: <BN7PR08MB56681AE7A0C9A73ED2D908B2A50B0@BN7PR08MB5668.namprd08.prod.outlook.com>
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In 12.1, we are seeing a page fault in unp_pcb_owned_lock2_slowpath, while = trying to lock unp2. Examination of the crash dump shows that unp2's refer= ence count is down to zero, which it shouldn't be, since the function took = a reference on it before unlocking unp. Could this be a bug that has been fixed in recent versions? I would look i= nto upgrading, or back-porting the fix, if a fix is known. Bruce Leverett Panasas, Inc.
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