Hi All, I configurated freeBSD 10.0 at my servers. Two have configuration: CARP+PF. Sometimes one of them crash. Hardware: Supermicro servers Debug log: Unread portion of the kernel message buffer: <118>Stopping powerd. <118>Waiting for PIDS: 2913. <118>Stopping devd. <118>Waiting for PIDS: 2578. <118>Writing entropy file:. <118>. <118>Terminated <118>Aug 29 19:54:04 rack02 syslogd: exiting on signal 15 spin lock 0xffffffff814fa030 (smp rendezvous) held by 0xfffff8035506d000 (tid 100157) too long panic: spin lock held too long cpuid = 2 KDB: stack backtrace: #0 0xffffffff808e7dd0 at kdb_backtrace+0x60 #1 0xffffffff808af8b5 at panic+0x155 #2 0xffffffff8089cb71 at _mtx_lock_spin_cookie+0x241 #3 0xffffffff80c7ef54 at smp_targeted_tlb_shootdown+0xf4 #4 0xffffffff80c80922 at pmap_invalidate_all+0x232 #5 0xffffffff80c8736f at pmap_remove_pages+0x6af #6 0xffffffff80b104c0 at vmspace_exit+0xa0 #7 0xffffffff8087c6af at exit1+0x65f #8 0xffffffff808b2eef at sigexit+0xb7f #9 0xffffffff808b35a9 at postsig+0x349 #10 0xffffffff808f6e97 at ast+0x437 #11 0xffffffff80c765c9 at doreti_ast+0x1f Uptime: 1d2h40m52s (ada0:ahcich0:0:0:0): STANDBY_IMMEDIATE. ACB: e0 00 00 00 00 40 00 00 00 00 00 00 (ada0:ahcich0:0:0:0): CAM status: CCB request is in progress (ada0:ahcich0:0:0:0): Error 5, Retries exhausted (ada0:ahcich0:0:0:0): Spin-down disk failed (ada1:ahcich1:0:0:0): STANDBY_IMMEDIATE. ACB: e0 00 00 00 00 40 00 00 00 00 00 00 (ada1:ahcich1:0:0:0): CAM status: CCB request is in progress (ada1:ahcich1:0:0:0): Error 5, Retries exhausted (ada1:ahcich1:0:0:0): Spin-down disk failed Dumping 1590 out of 32706 MB:..2%..11%..21%..31%..41%..51%..61%..71%..81%..91% It looks like problem with standby and disks. I tried turn off it at disks by camcontrol cmd /dev/ada0 -a "EF 85 00 00 00 00 00 00 00 00 00 00" -v and same at second disk but it didn't change anything. Server crash after a few minuts/days. cat /etc/rc.conf zfs_enable="YES" hostname="rack02" keymap="pl_PL.ISO8859-2.kbd" sshd_enable="YES" ntpd_enable="YES" powerd_enable="YES" dumpdev="AUTO" cat /boot/loader.conf zfs_load="YES" ipmi_load="YES" vmm_load="YES" if_tap_load="YES" bridgestp_load="YES" if_bridge_load="YES" nmdm_load="YES" if_em_load="YES" pf_load="YES" pfsync_load="YES" pflog_load="YES" carp_load="YES" autoboot_delay="3" Can you suggest something how can i resolve issue ? Best Regards, Maciej