https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=218167
Bug ID: 218167
Summary: ctl(4): calling _callout_stop_safe with the following
non-sleepable locks held
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
While exploring cfumass(4) I received a warning, using a recent SD card
snapshot.
Uname:
FreeBSD beaglebone 12.0-CURRENT FreeBSD 12.0-CURRENT #0 r315864: Thu Mar 23
22:59:22 UTC 2017
[email protected]:/usr/obj/arm.armv6/usr/src/sys/BEAGLEBONE arm
Warning:
root@beaglebone:~ # ctladm create -b block -o file=/data/target0
ctladm: LUN creation warning: error opening /data/target0: 2
LUN created successfully
backend: block
device type: 0
LUN size: 0 bytes
blocksize 512 bytes
LUN ID: 0
Serial Number: MYSERIAL 0
Device ID; MYDEVID 0
root@beaglebone:~ # ctladm remove -b block -l 0
calling _callout_stop_safe with the following non-sleepable locks held:
exclusive sleep mutex CTL mutex (CTL mutex) r = 0 (0xc36bd000) locked @
/usr/src/sys/cam/ctl/ctl.c:5030
stack backtrace:
LUN 0 removed successfully
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