Date: Fri, 14 Nov 2014 18:42:01 -0800 From: John-Mark Gurney <jmg@funkthat.com> To: "Andrey V. Elsukov" <bu7cher@yandex.ru>, freebsd-security@FreeBSD.org, current@FreeBSD.org Subject: Re: CFR: AES-GCM and OpenCrypto work review Message-ID: <20141115024201.GW24601@funkthat.com> In-Reply-To: <20141114193911.GR24601@funkthat.com> References: <20141108042300.GA24601@funkthat.com> <54655257.8080705@yandex.ru> <54660389.9060409@yandex.ru> <20141114193911.GR24601@funkthat.com>
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John-Mark Gurney wrote this message on Fri, Nov 14, 2014 at 11:39 -0800:
> Well.. It looks like IPSEC is still broken in head... I can get
> pings to pass, but now on IPv4 transport mode, I can't get syn's to
> be sent out... I see the output packet in the protocol stats, but
> no packets go out the interface...
>
> If you could provide me w/ a simple set of spdadd commands, or the
> dumps from the machine, that'd be good...
>
> Hmm.... I just ran ping -f so I could generate some traffic, and
> managed to get a:
> panic: System call sendto returing with kernel FPU ctx leaked
>
> I'll look into this...
I just verified that this happens on a clean HEAD @ r274534:
FreeBSD 11.0-CURRENT #0 r274534: Fri Nov 14 17:17:10 PST 2014
jmg@carbon.funkthat.com:/scratch/jmg/clean/sys/amd64/compile/IPSEC amd64
No modifications, nothing, and I got the same panic:
panic: System call sendto returing with kernel FPU ctx leaked
cpuid = 0
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe001de7a800
kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe001de7a8b0
vpanic() at vpanic+0x189/frame 0xfffffe001de7a930
kassert_panic() at kassert_panic+0x139/frame 0xfffffe001de7a9a0
amd64_syscall() at amd64_syscall+0x616/frame 0xfffffe001de7aab0
Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe001de7aab0
--- syscall (64, FreeBSD ELF64, nosys), rip = 0x8011975aa, rsp = 0x7ffffffee588, rbp = 0x7ffffffee5c0 ---
KDB: enter: panic
So, it's clearly not my patch that is causing the issue...
Andrey, can you verify that you do not receive the same panic w/o my
patches?
--
John-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."
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