Date: Sat, 15 Nov 2014 22:20:18 -0800 From: John-Mark Gurney <jmg@funkthat.com> To: Adrian Chadd <adrian@freebsd.org> Cc: freebsd-security@freebsd.org, "Andrey V. Elsukov" <bu7cher@yandex.ru>, "current@freebsd.org" <current@freebsd.org> Subject: Re: CFR: AES-GCM and OpenCrypto work review Message-ID: <20141116062018.GH24601@funkthat.com> In-Reply-To: <CAJ-VmomZKD4eMSObQNZ9EgeQ2C8oUQCZNXutPHz%2BUqbK3KftxQ@mail.gmail.com> References: <20141108042300.GA24601@funkthat.com> <54655257.8080705@yandex.ru> <54660389.9060409@yandex.ru> <20141114193911.GR24601@funkthat.com> <20141115024201.GW24601@funkthat.com> <546744B6.8040504@yandex.ru> <20141116061525.GG24601@funkthat.com> <CAJ-VmomZKD4eMSObQNZ9EgeQ2C8oUQCZNXutPHz%2BUqbK3KftxQ@mail.gmail.com>
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Adrian Chadd wrote this message on Sat, Nov 15, 2014 at 22:18 -0800: > ... no attachment? Thanks, I put it on the website since I realized it was 155k and a bit large to attach... it's at: https://www.funkthat.com/~jmg/patches/aes.ipsec.6.patch > On 15 November 2014 22:15, John-Mark Gurney <jmg@funkthat.com> wrote: > > Andrey V. Elsukov wrote this message on Sat, Nov 15, 2014 at 15:19 +0300: > >> On 15.11.2014 05:42, John-Mark Gurney wrote: > >> > 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? > >> > >> I tried 11.0-CURRENT r274549 with and without patches. > >> Without patches all works as expected. System encrypts and forwards > >> traffic with and without aesni module. > >> > >> With patches software rijndaelEncrypt also works. But when I load > >> aesni.ko and restart setkey -f /etc/ipsec.conf forwarding stops, errors > >> counter starts grow. And I see messages about wrong source route > >> attempts from random addresses. > > > > Ok, I was able to reproduce the bug, and found that my optimization > > for single mbuf packets was broken... I've attached a new patch > > that has the fix... > > > > This patch also has added a lock around the aesni fpu context setting > > to deal w/ the issue that I had... > > > > Let me know how things are w/ this new patch. > > > > Thanks. > > > > -- > > John-Mark Gurney Voice: +1 415 225 5579 > > > > "All that I will do, has been done, All that I have, has not." > > _______________________________________________ > > freebsd-current@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-current > > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" -- 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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