From: Brian King <brking@us.ibm.com>
To: linux-kernel@vger.kernel.org
Subject: userspace pci config space accesses
Date: Wed, 28 Apr 2004 16:49:02 -0500 [thread overview]
Message-ID: <409026CE.8050905@us.ibm.com> (raw)
I recently ran into a problem where lspci was trying to read pci config space
of a pci adapter while the device driver for that adapter was running BIST
on it. On ppc64, this resulted in a PCI error and puts the slot into an error
state making it unusable for the remainder of that system boot. Should there
be some blocking in place so that userspace pci config reads will not occur
in these windows or is using tools like lspci user beware? Part of my problem
was that lspci was being called as a result of a boot script so on a particular
machine I was hitting this every boot.
--
Brian King
eServer Storage I/O
IBM Linux Technology Center
next reply other threads:[~2004-04-28 21:51 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-28 21:49 Brian King [this message]
2004-04-28 22:52 ` userspace pci config space accesses Greg KH
2004-04-28 23:26 ` Brian King
2004-04-28 23:38 ` Greg KH
2004-04-29 0:38 ` Brian King
2004-04-29 10:11 ` Arjan van de Ven
2004-05-01 5:50 ` Greg KH
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=409026CE.8050905@us.ibm.com \
--to=brking@us.ibm.com \
--cc=linux-kernel@vger.kernel.org \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox