Date: Tue, 22 Jun 2021 12:14:20 -0600 From: Alan Somers <asomers@freebsd.org> To: mike tancsa <mike@sentex.net> Cc: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org> Subject: Re: possible releng13 deadlock ? Message-ID: <CAOtMX2jiioQA92d3oCzQ1-1kzkn0o6XxpQtXGXK%2B=ubOjczsbg@mail.gmail.com> In-Reply-To: <b89466ce-e651-c6db-8e60-cc3449060766@sentex.net> References: <b89466ce-e651-c6db-8e60-cc3449060766@sentex.net>
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--000000000000ec312705c55ec2ac Content-Type: text/plain; charset="UTF-8" If you think there's a deadlock, please send the kernel stacks of the zfs send and recv processes. You can get those with "procstat -kk <PID>". On Tue, Jun 22, 2021 at 11:49 AM mike tancsa <mike@sentex.net> wrote: > I was trying out a zfs send | recv on a new controller this morning > using the latest RELENG_13 upto the last commit there > (25302a721f69d34c72d8bd3e0c316ad12647e281) and experienced a hard lock > on the system. The motherboard is just a desktop board, so no serial > hooked up nor ipmi. However, reverting to a kernel from the 20th > (stable/13-659f77766) seems to be OK. Note, this was one try deadlock > so cant be sure if it was a fluke and the issue is from some time else. > > But I will try and repeat a few sends (approx 20min) with the working > kernel and then try again with the latest kernel. Anyone else using the > latest 13 stable and ZFS from today notice anything ? > > I am just sending a zfs dataset from one set of striped disks to > another. On the plus side, its FAST! > > zpool iostat testmdt 1 > capacity operations bandwidth > pool alloc free read write read write > ---------- ----- ----- ----- ----- ----- ----- > testmdt 1.31T 1.41T 1 4.78K 6.62K 602M > testmdt 1.31T 1.40T 0 6.51K 0 819M > testmdt 1.31T 1.40T 0 6.52K 0 820M > testmdt 1.32T 1.40T 0 6.52K 0 820M > testmdt 1.32T 1.40T 0 6.51K 0 819M > testmdt 1.32T 1.40T 0 8.22K 0 1.02G > testmdt 1.32T 1.40T 0 4.98K 0 622M > testmdt 1.32T 1.40T 0 8.58K 0 1.06G > testmdt 1.32T 1.40T 0 9.18K 0 1.13G > testmdt 1.32T 1.40T 0 1.44K 0 172M > testmdt 1.32T 1.40T 0 1.19K 0 153M > testmdt 1.32T 1.40T 0 5.21K 0 653M > testmdt 1.32T 1.40T 0 4.09K 0 524M > testmdt 1.32T 1.40T 0 8.72K 0 1.06G > testmdt 1.32T 1.40T 0 2.51K 0 321M > testmdt 1.32T 1.39T 0 10.5K 0 1.29G > testmdt 1.32T 1.39T 0 6.42K 0 808M > > > > --000000000000ec312705c55ec2ac--
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