Re: -current host, 10.1 client loops

2016-04-12 Thread Poul-Henning Kamp

In message <570c74cf.1080...@freebsd.org>, Peter Grehan writes:


>  I'll try with a bit more CPU oversubscription and see if I can hit 
>this. Thanks for the info - this should help track it down.


For what its worth, I think the port being compiled was:

/usr/ports/www/p5-Mozilla-CAnss

Another possibly relevant datapoint:

The actively being written to filesystem is UFS+SU+TRIM but no
journal and I think fsck sees more and worse corruption than it
should if writes happened in the order Kirk intended.  Specifically
it should never get fsck_ffs into the "please run fsck again" jungle.

-- 
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p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer   | BSD since 4.3-tahoe
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Re: -current host, 10.1 client loops

2016-04-08 Thread Poul-Henning Kamp

In message <ca+q+tcpr8dpo8e2wiqhfmd_nv_o8ba0pq1o3a7+5kja+eys...@mail.gmail.com>
, =?UTF-8?Q?Olivier_Cochard=2DLabb=C3=A9?= writes:

With the host now running:

FreeBSD 11.0-CURRENT #0 r297514M

And (another) i386 guest running:

FreeBSD 11.0-CURRENT #3 r297721M

I do not see the problem.

I'm going to try the 10.1/i386 guest over the weekend.


-- 
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p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer   | BSD since 4.3-tahoe
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Re: -current host, 10.1 client loops

2016-03-19 Thread Poul-Henning Kamp

In message <cafgre9hjozvp7g0aypemslaofrmdbgwvksgkb5upfcecc3z...@mail.gmail.com>
, Neel Natu writes:

I tried a i386 -current guest, and it hung, both cores spinning
during a buildworld.

This should make it pretty easy for somebody else to reproduce.

-- 
Poul-Henning Kamp   | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer   | BSD since 4.3-tahoe
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Re: -current host, 10.1 client loops

2016-03-19 Thread Poul-Henning Kamp

In message <cafgre9hjozvp7g0aypemslaofrmdbgwvksgkb5upfcecc3z...@mail.gmail.com>
, Neel Natu writes:

>https://www.freebsd.org/releases/10.1R/errata.html#open-issues
>
>Can you try to reproduce after setting 'vfs.unmapped_buf_allowed=0' at
>the guest loader prompt?
>
>The issue doesn't mention bhyve specifically but given that it's a
>simple workaround it should be worth a try.

That may have helped, at least I got all the way through a nanobsd
build this time.

-- 
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p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer   | BSD since 4.3-tahoe
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Re: -current host, 10.1 client loops

2016-03-19 Thread Poul-Henning Kamp

In message 
<ca+q+tcpr8dpo8e2wiqhfmd_nv_o8ba0pq1o3a7+5kja+eys...@mail.gmail.com>, 
=?UTF-8?Q?Olivier_Cochard=2D
Labb=C3=A9?= writes:


>> How do I tell that script to use ahci-hd ?
>>
>>
>You just need to replace virtio-blk by ahci-hd in the script, like:

Ok, it also hung with ahci-hd and two disks...

Just to make sure I have asked about this:  Are there any special
params needed to run a 10.1-R guest ?

-- 
Poul-Henning Kamp   | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer   | BSD since 4.3-tahoe
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Re: -current host, 10.1 client loops

2016-03-19 Thread Poul-Henning Kamp

In message 

Re: -current host, 10.1 client loops

2016-03-15 Thread Poul-Henning Kamp

In message <cafgre9hqyq9tsm8pnzcazq2awkenstaelcn0vsyhg4wzk4f...@mail.gmail.com>
, Neel Natu writes:

>Also, if it is possible to reproduce with a single vcpu then it will
>help when analyzing the output of ktrdump.

Well, on the gutfeeling that it might help I gave a '-c 1' and that
seems to prevent the problem from happening so I could get my builds
done.

So some kind of synchronization issue maybe ?

-- 
Poul-Henning Kamp   | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer   | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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