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Date:      Thu, 6 Dec 2018 09:38:06 -0800
From:      Navdeep Parhar <nparhar@gmail.com>
To:        =?UTF-8?Q?Trond_Endrest=c3=b8l?= <Trond.Endrestol@fagskolen.gjovik.no>, FreeBSD stable <freebsd-stable@freebsd.org>
Subject:   Re: Kernel panic, stable/12 r341604, swapon -a in SU mode, geli encrypted swap, Chelsio T6225-CR, and ccr(4)
Message-ID:  <58497f97-f1ff-0d80-f9b9-5722e53ffa41@gmail.com>
In-Reply-To: <alpine.BSF.2.21.9999.1812061248310.41853@mail.fig.ol.no>
References:  <alpine.BSF.2.21.9999.1812061248310.41853@mail.fig.ol.no>

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Can you please file a bug at https://bugs.freebsd.org/bugzilla/ and
assign it to me?

Regards,
Navdeep

On 12/6/18 4:02 AM, Trond Endrest=C3=B8l wrote:
> After booting stable/12 r341604, running a custom kernel including=20
> cxgbe(4), cxgbev(4), and ccr(4), and running swapon -a in SU mode:
>=20
> GEOM_ELI: Device gpt/swap0.eli created.
> GEOM_ELI: Encryption: AES-XTS 256
> GEOM_ELI:     Crypto: hardware
>=20
>=20
> Fatal trap 12: page fault while in kernel mode
> cpuid =3D 3; apic id =3D 06
> fault virtual address   =3D 0x0
> fault code              =3D supervisor write data, page not present
> instruction pointer     =3D 0x20:0xffffffff805be1b2
> stack pointer           =3D 0x28:0xfffffe00a6253770
> frame pointer           =3D 0x28:0xfffffe00a6253770
> code segment            =3D base 0x0, limit 0xfffff, type 0x1b
>                         =3D DPL 0, pres 1, long 1, def32 0, gran 1
> processor eflags        =3D interrupt enabled, resume, IOPL =3D 0
> current process         =3D 65 (g_eli[3] gpt/swap0)
> trap number             =3D 12
> panic: page fault
> cpuid =3D 3
> time =3D 1544087308
> KDB: stack backtrace:
> db_trace_self_wrapper() at 0xffffffff8055d9eb =3D db_trace_self_wrapper=
+0x2b/frame 0xfffffe00a6253420
> vpanic() at 0xffffffff808754d3 =3D vpanic+0x1a3/frame 0xfffffe00a625348=
0
> panic() at 0xffffffff80875323 =3D panic+0x43/frame 0xfffffe00a62534e0
> trap_fatal() at 0xffffffff80bd745f =3D trap_fatal+0x35f/frame 0xfffffe0=
0a6253530
> trap_pfault() at 0xffffffff80bd74b9 =3D trap_pfault+0x49/frame 0xfffffe=
00a4b7f590
> trap() at 0xffffffff80bd6ade =3D trap+0x29e/frame 0xfffffe00a4b7f6a0
> calltrap() at 0xffffffff80bb3935 =3D calltrap+0x8/frame 0xfffffe00a4b7f=
6a0
> --- trap 0xc, rip =3D 0xffffffff805be1b2, rsp =3D 0xfffffe00a4b7f770, r=
bp =3D 0xfffffe00a4b7f770
> t4_wrq_tx_locked() at 0xffffffff805be1b2 =3D t4_wrq_tx_locked+0x12/fram=
e 0xfffffe00a6253770
> ccr_process() at 0xffffffff805e3fc3 =3D ccr_process+0x1953/frame 0xffff=
fe00a4b7f970
> crypto_dispatch() at 0xffffffff80ae3fa4 =3D crypto_dispatch+0x144/frame=
 0xfffffe00a4b7f9b0
> g_eli_crypto_run() at 0xffffffff807b5cb3 =3D g_eli_crypto_run+0x273/fra=
me 0xfffffe00a4b7fa10
> g_eli_worker() at 0xffffffff807aebc8 =3D g_eli_worker+0x3c8/frame 0xfff=
ffe00a4b7fa70
> fork_exit() at 0xffffffff80834d93 =3D fork_exit+0x83/frame 0xfffffe00a4=
b7fab0
> fork_trampoline() at 0xffffffff80bb491e =3D fork_trampoline+0xe/frame 0=
xfffffe00a4b7fab0
> --- trap 0, rip =3D 0, rsp =3D 0, rbp =3D 0 ---
> Uptime: 14s
> Automatic reboot in 15 seconds - press a key on the console to abort
> --> Press a key on the console to reboot,
>=20
> The Chelsio NIC is a T6225-CR.
>=20
> Kernel config is=20
> https://ximalas.info/~trond/create-zfs/canmount/ENTERPRISE-amd64-stable=
-12
>=20
> I tried stable/12 r341623 with ccr(4) removed from the kernel, and I=20
> had no problems engaging geli encrypted swap in SU mode nor in normal=20
> mode.
>=20
> Has anyone else tried ccr(4) on recent stable/12?
> Are we discouraged from using ccr(4)?
> I was hoping to take advantage of the crypto accelerator.
>=20





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