Date: Sun, 8 Apr 2018 09:37:12 -0500 From: Justin Hibbits <chmeeedalf@gmail.com> To: Mark Johnston <markj@freebsd.org> Cc: Jeff Roberson <jroberson@jroberson.net>, FreeBSD current <freebsd-current@freebsd.org> Subject: Re: Strange ARC/Swap/CPU on yesterday's -CURRENT Message-ID: <CAHSQbTBCbzS6=Rb3e-qqJAFUq1mZkFCQUg8eKKUXPzJu2sD1EQ@mail.gmail.com> In-Reply-To: <20180407194935.GA491@raichu> References: <1fd2b47b-b559-69f8-7e39-665f0f599c8f@FreeBSD.org> <tkrat.9bab32187c0e8d01@FreeBSD.org> <tkrat.11e402b8455bd0fa@FreeBSD.org> <tkrat.7e60fe1978ea51c0@FreeBSD.org> <20180404174949.GA12271@raichu> <tkrat.5960d3aa016999f6@FreeBSD.org> <CAHSQbTBjs=5Nq-QGZftYh8rDwMuCZN7CrsLt0OPPOyzW2V6_Ow@mail.gmail.com> <20180406150814.GB10017@raichu> <CAHSQbTCGmw5-_b1VJn6iotYovfDdPZ6RDC1pT9%2B9J=7%2BGzD=%2Bg@mail.gmail.com> <CAHSQbTA0kgzB6tLV9Zn7gU5wxfURddatekP8Cy9G5hKLkb1ckw@mail.gmail.com> <20180407194935.GA491@raichu>
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Hi Mark,
On Sat, Apr 7, 2018 at 2:49 PM, Mark Johnston <markj@freebsd.org> wrote:
> On Sat, Apr 07, 2018 at 02:34:54PM -0500, Justin Hibbits wrote:
>>
>> I reverted back to r329881, and successfully built world. Updated to
>> r329882 and it got stuck with processes in btalloc.
>>
>> I've seen other reports of r329882 causing problems on powerpc64 as
>> well, with other bizarre behaviors.
>
> Did you try the patch that I had posted? If not, could you? Please also
> update zfs_arc_free_target or just apply D14994.
I just applied both patches, and head still locks up, but no threads
are stuck in btalloc. The thread running when I break into ddb is
still vmdaemon.
Running 'show all vmem' on ddb shows it pretty low on kernel arena:
vmem 0xe000000001202900 'buffer arena'
quantum: 4096
size: 775913472
inuse: 152928256
free: 622985216
busy tags: 4668
free tags: 4
inuse size free size
16384 2 32768 0 0
32768 4666 152895488 1 32768
536870912 0 0 1 622952448
vmem 0xe000000005017000 'kernel arena dom'
quantum: 4096
size: 775946240
inuse: 772923392
free: 3022848
busy tags: 144749
free tags: 3
inuse size free size
4096 141305 578785280 0 0
8192 243 1990656 0 0
16384 2081 34095104 0 0
20480 290 5939200 0 0
32768 113 3702784 0 0
36864 61 2248704 0 0
65536 80 5242880 0 0
69632 2 139264 1 69632
77824 1 77824 0 0
81920 1 81920 0 0
86016 1 86016 0 0
90112 2 180224 0 0
94208 2 188416 0 0
98304 1 98304 0 0
102400 1 102400 0 0
110592 1 110592 0 0
118784 1 118784 0 0
122880 1 122880 0 0
131072 545 71434240 0 0
262144 2 524288 9 2428928
524288 4 2154496 1 524288
1048576 6 6995968 0 0
2097152 1 2097152 0 0
4194304 1 4194304 0 0
8388608 1 8388608 0 0
16777216 2 43823104 0 0
vmem 0xe000000001202180 'kernel arena'
quantum: 4096
size: 2353004544
inuse: 2351603712
free: 1400832
busy tags: 600
free tags: 4
inuse size free size
4096 3 12288 1 4096
24576 0 0 2 49152
28672 0 0 1 28672
36864 415 15298560 1 36864
65536 1 65536 0 0
131072 1 131072 0 0
1048576 0 0 1 1282048
4194304 172 721420288 0 0
8388608 1 8388608 0 0
16777216 2 46137344 0 0
134217728 3 453386240 0 0
268435456 1 297295872 0 0
536870912 1 809467904 0 0
Any other numbers I can gather to debug this?
- Justin
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