Date: Tue, 29 Jul 2014 23:18:07 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 192257] New: modevent_nop always returns EBUSY on MOD_UNLOAD; blocks user from being able to unload modules with evhand = NULL Message-ID: <bug-192257-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192257 Bug ID: 192257 Summary: modevent_nop always returns EBUSY on MOD_UNLOAD; blocks user from being able to unload modules with evhand = NULL Product: Base System Version: 11.0-CURRENT Hardware: Any OS: Any Status: Needs Triage Severity: Affects Some People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: yaneurabeya@gmail.com The code in modevent_nop always returns EBUSY when one tries to unload a module. This doesn't necessarily make sense because it effectively wires the module into the kernel until it's rebooted, making it difficult for developers/testers/users to swap out kernel modules as need be: 68 static int 69 modevent_nop(module_t mod, int what, void *arg) 70 { 71 72 switch(what) { 73 case MOD_LOAD: 74 return (0); 75 case MOD_UNLOAD: 76 return (EBUSY); 77 default: 78 return (EOPNOTSUPP); 79 } 80 } It would make more sense if it returned 0 when MOD_LOAD/MOD_UNLOAD events are passed through, like it used to before r132167, but this requires additional discussion. -- You are receiving this mail because: You are the assignee for the bug.
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