Re: extremely slow to get to loader

On April 27, 2016 2:50:13 PM GMT+02:00, Boris Samorodov <bsam_at_passap.ru> wrote:
>24.04.16 20:46, Larry Rosenman пишет:
>> On 2016-04-21 20:56, Johannes Dieterich wrote:
>>> On Thu, Apr 21, 2016 at 12:16 PM, Allan Jude <allanjude_at_freebsd.org>
>>> wrote:
>>>> On 2016-04-21 10:46, Johannes Dieterich wrote:
>>>>> Dear all,
>>>>>
>>>>> with r298385, I observe extremely long times from turning on my
>laptop
>>>>> to reach loader. This is a regression compared to a roughly 1 week
>old
>>>>> CURRENT.
>>>>>
>>>>> This is an AMD A12-8800B laptop booting in legacy mode into a
>>>>> ZFS+GELI setup.
>>>>>
>>>>> Please let me know how I can help to solve this issue.
>>>>>
>>>>> Thanks,
>>>>>
>>>>> Johannes
>>>>> _______________________________________________
>>>>> freebsd-current_at_freebsd.org mailing list
>>>>> https://lists.freebsd.org/mailman/listinfo/freebsd-current
>>>>> To unsubscribe, send any mail to
>>>>> "freebsd-current-unsubscribe_at_freebsd.org"
>>>>>
>>>>
>>>> Can you describe where exactly it is slow?
>>> Yes, it hangs after "BIOS drive C: is disk 0" for a good 3 minutes
>>> before it eventually continues.
>>>
>>>> Once you get to the loader menu (the beastie menu), can you choose
>the
>>>> option to go to the loader prompt, and type:
>>>> bcachestat
>>>>
>>>> And provide the output of that.
>>> Here we go (w/o mistakes I hope...):
>>> cache blocks: 32768
>>> cache blocksz: 572
>>> unit cache blocks: 32768
>>> cached units: 1
>>> 1162 ops 0 bypasses 12109 hits 739 misses
>>>
>>> Thanks so much for the response!
>>>
>>> Johannes
>> I'm seeing similar, PLUS the kernel seems(!) to not continue on to
>the
>> RC scripts
>> after mount root.
>> 
>> (BIOS BOOT).
>> 
>> I reverted to an older kernel and boot block and zfsloader to get up.
>> 
>> 
>Seems, I'm at the same boat. The system is a remote Supermicro server:
>--- ping after reboot ---
>% ping -i 60 srv
>PING srv (X.X.X.X): 56 data bytes
>64 bytes from X.X.X.X: icmp_seq=0 ttl=59 time=2.526 ms
>64 bytes from X.X.X.X: icmp_seq=14 ttl=59 time=2.735 ms
>--- dmesg messages ---
>[...]
>Apr 27 14:59:34 srv shutdown: reboot by bsam:
>Apr 27 14:59:35 srv kernel: .
>Apr 27 14:59:56 srv syslogd: exiting on signal 15
>Apr 27 15:12:33 srv syslogd: kernel boot file is /boot/kernel/kernel
>Apr 27 15:12:33 srv kernel: Copyright (c) 1992-2016 The FreeBSD
>Project.
>Apr 27 15:12:33 srv kernel: Copyright (c) 1979, 1980, 1983, 1986, 1988,
>1989, 1991, 1992, 1993, 1994
>Apr 27 15:12:33 srv kernel: The Regents of the University of
>California.
>All rights reserved.
>Apr 27 15:12:33 srv kernel: FreeBSD is a registered trademark of The
>FreeBSD Foundation.
>Apr 27 15:12:33 srv kernel: FreeBSD 11.0-CURRENT #41 r298696: Wed Apr
>27
>14:50:53 MSK 2016
>[...]
>------
>
>This is a zfs-root system with geli-enabled swap partitions.
>Other than boot the system seem to be fine.

Please try https://reviews.freebsd.org/D6109 and see if it fixes the problem.
-- 
Allan Jude