Yes, I’m still getting it on r329721. Andrew
> On 21 Feb 2018, at 17:02, Conrad Meyer <c...@freebsd.org> wrote: > > Do you have r329672 yet? > > Best, > Conrad > > On Wed, Feb 21, 2018 at 7:11 AM, Andrew Turner <and...@fubar.geek.nz> wrote: >> >>> On 20 Feb 2018, at 00:06, Jeff Roberson <j...@freebsd.org> wrote: >>> >>> Author: jeff >>> Date: Tue Feb 20 00:06:07 2018 >>> New Revision: 329612 >>> URL: https://svnweb.freebsd.org/changeset/base/329612 >>> >>> Log: >>> Further parallelize the buffer cache. >>> >>> Provide multiple clean queues partitioned into 'domains'. Each domain >>> manages >>> its own bufspace and has its own bufspace daemon. Each domain has a set of >>> subqueues indexed by the current cpuid to reduce lock contention on the >>> cleanq. >>> >>> Refine the sleep/wakeup around the bufspace daemon to use atomics as much as >>> possible. >>> >>> Add a B_REUSE flag that is used to requeue bufs during the scan to >>> approximate >>> LRU rather than locking the queue on every use of a frequently accessed buf. >>> >>> Implement bufspace_reserve with only atomic_fetchadd to avoid loop restarts. >>> >>> Reviewed by: markj >>> Tested by: pho >>> Sponsored by: Netflix, Dell/EMC Isilon >>> Differential Revision: https://reviews.freebsd.org/D14274 >> >> I’m seeing the following panic on FreeBSD/arm64 after this change. >> >> Andrew >> >> panic: bq_remove: Remove buffer 0xffff00004082f260 from wrong queue. >> cpuid = 4 >> time = 1519088201 >> KDB: stack backtrace: >> db_trace_self() at db_trace_self_wrapper+0x28 >> pc = 0xffff00000062fee4 lr = 0xffff0000000c0450 >> sp = 0xffff000040364480 fp = 0xffff000040364690 >> >> db_trace_self_wrapper() at vpanic+0x184 >> pc = 0xffff0000000c0450 lr = 0xffff000000354ce8 >> sp = 0xffff0000403646a0 fp = 0xffff000040364720 >> >> vpanic() at kassert_panic+0x158 >> pc = 0xffff000000354ce8 lr = 0xffff000000354b60 >> sp = 0xffff000040364730 fp = 0xffff0000403647f0 >> >> kassert_panic() at bq_remove+0x178 >> pc = 0xffff000000354b60 lr = 0xffff0000003f7014 >> sp = 0xffff000040364800 fp = 0xffff000040364810 >> >> bq_remove() at buf_recycle+0x100 >> pc = 0xffff0000003f7014 lr = 0xffff0000003fca80 >> sp = 0xffff000040364820 fp = 0xffff000040364880 >> >> buf_recycle() at bufspace_daemon+0xb4 >> pc = 0xffff0000003fca80 lr = 0xffff0000003fd31c >> sp = 0xffff000040364890 fp = 0xffff000040364910 >> >> bufspace_daemon() at fork_exit+0x7c >> pc = 0xffff0000003fd31c lr = 0xffff000000318388 >> sp = 0xffff000040364920 fp = 0xffff000040364950 >> >> fork_exit() at fork_trampoline+0x10 >> pc = 0xffff000000318388 lr = 0xffff000000649ec4 >> sp = 0xffff000040364960 fp = 0x0000000000000000 >> >> KDB: enter: panic > _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"