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Date:      Tue, 21 Mar 2017 18:59:38 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 217983] Collaboration bsnmpd + devd + using an empty CD-ROM drive = 100% CPU load
Message-ID:  <bug-217983-8-IsaVaqvqlV@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-217983-8@https.bugs.freebsd.org/bugzilla/>
References:  <bug-217983-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D217983

--- Comment #3 from Vladislav V. Prodan <admin@support.od.ua> ---
(In reply to Conrad Meyer from comment #1)

# procstat -kka | egrep "bsnmpd|devd"
 1047 100600 devd                -                   mi_switch+0xd2
sleepq_catch_signals+0xb7 sleepq_timedwait_sig+0x14 _cv_timedwait_sig_sbt+0=
x1d3
seltdwait+0xc3 kern_select+0x89f sys_select+0x54 amd64_syscall+0x50e
Xfast_syscall+0xfb
 2632 100566 bsnmpd              -                   mi_switch+0xd2
sleepq_timedwait+0x42 _sleep+0x27b g_waitfor_event+0xf3
sysctl_kern_geom_confxml+0x39 sysctl_root_handler_locked+0xbf sysctl_root+0=
x1f8
userland_sysctl+0x1d0 sys___sysctl+0x5f amd64_syscall+0x50e Xfast_syscall+0=
xfb

# procstat -kka | egrep "bsnmpd|devd"
 1047 100600 devd                -                   mi_switch+0xd2
sleepq_catch_signals+0xb7 sleepq_timedwait_sig+0x14 _cv_timedwait_sig_sbt+0=
x1d3
seltdwait+0xc3 kern_select+0x89f sys_select+0x54 amd64_syscall+0x50e
Xfast_syscall+0xfb
 2632 100566 bsnmpd              -                   mi_switch+0xd2
sleepq_wait+0x3a _sleep+0x29b cam_periph_runccb+0xcd cdprevent+0xa6
cdcheckmedia+0x22 cdopen+0x226 g_disk_access+0xc6 g_access+0x194
g_dev_open+0x116 devfs_open+0x11f VOP_OPEN_APV+0x84 vn_open_vnode+0x209
vn_open_cred+0x2f9 kern_openat+0x1f4 amd64_syscall+0x50e Xfast_syscall+0xfb

# procstat -kka | egrep "bsnmpd|devd"
 1047 100600 devd                -                   mi_switch+0xd2
sleepq_catch_signals+0xb7 sleepq_timedwait_sig+0x14 _cv_timedwait_sig_sbt+0=
x1d3
seltdwait+0xc3 kern_select+0x89f sys_select+0x54 amd64_syscall+0x50e
Xfast_syscall+0xfb
 2632 100566 bsnmpd              -                   mi_switch+0xd2
sleepq_wait+0x3a _sleep+0x29b cam_periph_runccb+0xcd cdcheckmedia+0xe3
cdopen+0x226 g_disk_access+0xc6 g_access+0x194 g_dev_open+0x116
devfs_open+0x11f VOP_OPEN_APV+0x84 vn_open_vnode+0x209 vn_open_cred+0x2f9
kern_openat+0x1f4 amd64_syscall+0x50e Xfast_syscall+0xfb

# procstat -kka | egrep "bsnmpd|devd"
 1047 100600 devd                -                   mi_switch+0xd2
sleepq_catch_signals+0xb7 sleepq_timedwait_sig+0x14 _cv_timedwait_sig_sbt+0=
x1d3
seltdwait+0xc3 kern_select+0x89f sys_select+0x54 amd64_syscall+0x50e
Xfast_syscall+0xfb
 2632 100566 bsnmpd              -                   mi_switch+0xd2
sleepq_wait+0x3a _sleep+0x29b cam_periph_runccb+0xcd cdprevent+0xa6
cdcheckmedia+0x19a cdopen+0x226 g_disk_access+0xc6 g_access+0x194
g_dev_open+0x116 devfs_open+0x11f VOP_OPEN_APV+0x84 vn_open_vnode+0x209
vn_open_cred+0x2f9 kern_openat+0x1f4 amd64_syscall+0x50e Xfast_syscall+0xfb

# procstat -kka | egrep "bsnmpd|devd"
 1047 100600 devd                -                   mi_switch+0xd2
sleepq_catch_signals+0xb7 sleepq_timedwait_sig+0x14 _cv_timedwait_sig_sbt+0=
x1d3
seltdwait+0xc3 kern_select+0x89f sys_select+0x54 amd64_syscall+0x50e
Xfast_syscall+0xfb
 2632 100566 bsnmpd              -                   mi_switch+0xd2
sleepq_wait+0x3a _sleep+0x29b cam_periph_runccb+0xcd cdprevent+0xa6
cdcheckmedia+0x22 cdopen+0x226 g_disk_access+0xc6 g_access+0x194
g_dev_open+0x116 devfs_open+0x11f VOP_OPEN_APV+0x84 vn_open_vnode+0x209
vn_open_cred+0x2f9 kern_openat+0x1f4 amd64_syscall+0x50e Xfast_syscall+0xfb

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