All of lore.kernel.org
 help / color / mirror / Atom feed
From: Dominique Martinet <asmadeus@codewreck.org>
To: Itaru Kitayama <itaru.kitayama@linux.dev>
Cc: v9fs@lists.linux.dev
Subject: Re: ftruncate fails
Date: Mon, 8 Apr 2024 11:01:05 +0900	[thread overview]
Message-ID: <ZhNP4SISzZOGwy4A@codewreck.org> (raw)
In-Reply-To: <E7D462A2-EE93-4A57-9F15-8565EE1567F3@linux.dev>

Itaru Kitayama wrote on Mon, Apr 08, 2024 at 10:44:51AM +0900:
> With a recent kernel I see below program fails (Bus error) if executed
> from 9p mounted directory, not with the local filesystem (Ext4).

I cannot reproduce on 6.8/6.9-rc2 with qemu and a couple of options.
Bus error would be some problem with the mmap of the executable given
this code? so probably doesn't have anything to do with the content of
the program itself...

A few questions:
- What exact kernel are you running? (or closest approximation)
- What server? (assuming qemu) what mount option? (tried default
cacheless and cache=loose)
- Does this reproduce right after boot/mounting the 9p filesystem?

Thanks
-- 
Dominique Martinet | Asmadeus

  reply	other threads:[~2024-04-08  2:01 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-08  1:44 ftruncate fails Itaru Kitayama
2024-04-08  2:01 ` Dominique Martinet [this message]
2024-04-08  2:08   ` Itaru Kitayama
2024-04-08  2:22     ` Itaru Kitayama
2024-04-08  4:07       ` Dominique Martinet
2024-04-16 14:16       ` Eric Van Hensbergen
2024-04-12 20:36         ` Itaru Kitayama
2024-04-17  0:20           ` Eric Van Hensbergen
2024-04-17  0:25             ` Itaru Kitayama
2024-04-17  0:41               ` Eric Van Hensbergen

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=ZhNP4SISzZOGwy4A@codewreck.org \
    --to=asmadeus@codewreck.org \
    --cc=itaru.kitayama@linux.dev \
    --cc=v9fs@lists.linux.dev \
    /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.