Date: Wed, 12 May 2021 15:09:52 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 253175] 13.0-RC5 hang issue after installer / issuing shutdown -r now on installed base Message-ID: <bug-253175-227-AXNH6xiVql@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-253175-227@https.bugs.freebsd.org/bugzilla/> References: <bug-253175-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D253175 Joseph Fierro <jfierro@vultr.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jfierro@vultr.com --- Comment #19 from Joseph Fierro <jfierro@vultr.com> --- Hello, We have done some additional testing on our end and this problem seems to be with virtio_random(4).=20 We had a customer report a similar issue with FreeBSD 12.2 after enabling virtio_random with virtio_random_load=3D"YES" in /boot/loader.conf. With 12= .2, the system would intermittently hang after detaching all devices and reachi= ng "rebooting...". In 12.2 this does not occur on every reboot--it seems to oc= cur about 30% of the time. Removing that line from /boot/loader.conf resolved t= his problem. On a 13.0 RELEASE system in Vultr, issuing shutdown, reboot, or halt comma= nds will cause the system to hang at "detaching uhub0" and the CPU ramps up to = max. This happens on every reboot in 13.0, rather than intermittently (using the "-n" flag to skip the filesystem cache flush will actually avoid the proble= m, and the system will reboot without hanging). Simply manually unloading the virtio_random module with kldunload after boo= t is not sufficient to resolve the problem, as it will hang on reboot even after doing this. If the virtio_random module is never loaded in the first place, reboots, shutdowns, and halts will work properly. --=20 You are receiving this mail because: You are the assignee for the bug.=
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