From: Richard Henderson <rth@twiddle.net>
To: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] alpha: fix FEN fault handling
Date: Sat, 7 Jan 2023 15:03:14 -0800 [thread overview]
Message-ID: <f1de15a5-1713-70e7-81af-a0090583d888@twiddle.net> (raw)
In-Reply-To: <Y7nj80buxCO3u69l@ZenIV>
On 1/7/23 13:28, Al Viro wrote:
> On Sat, Jan 07, 2023 at 02:46:26AM +0000, Al Viro wrote:
>
>> Not sure it's worth bothering with in palcode-clipper - for Linux it's
>> useless (run out of timeslice and FEN will end up set, no matter what),
>> nothing in NetBSD or OpenBSD trees generates that call_pal, current
>> FreeBSD doesn't support alpha and their last version to do so hadn't
>> generated that call_pal either... What else is out there? OSF?
>
> BTW, out of curiosity - what was
> case 5: /* illoc */
> default: /* unexpected instruction-fault type */
> about in that switch in do_entIF()?
>
> All documentation I'd been able to find had only 0..4 as expected
> values (bpt/bugcheck/gentrap/fen/opdec)...
No idea.
Historical git (cd52cb6178a7, v2.4.8 -> v2.4.8.1) suggests it's related to shark_mv, so
perhaps a later revision of DEC PALcode. But I have no corresponding documentation.
r~
prev parent reply other threads:[~2023-01-07 23:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-07 0:59 [PATCH] alpha: fix FEN fault handling Al Viro
2023-01-07 1:55 ` Richard Henderson
2023-01-07 2:46 ` Al Viro
2023-01-07 21:28 ` Al Viro
2023-01-07 23:03 ` Richard Henderson [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=f1de15a5-1713-70e7-81af-a0090583d888@twiddle.net \
--to=rth@twiddle.net \
--cc=linux-alpha@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=viro@zeniv.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.