lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20100310032632.6331.15414.send-patch@aqua>
Date:	Tue, 9 Mar 2010 22:26:33 -0500
From:	Dean Nelson <dnelson@...hat.com>
To:	jbarnes@...tuousgeek.org
Cc:	netdev@...r.kernel.org, linux-pci@...r.kernel.org
Subject: [PATCH 0/3] pci: fix/cleanup pcix get and set mmrbc functions

A customer running RHEL4.8 encountered

 "e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang"

type errors, which were determined to be the result of a bad return value
from e1000_pcix_get_mmrbc() causing the call to e1000_pcix_set_mmrbc() to
be skipped in the following snippet of code from e1000_init_hw().

	switch (hw->mac_type) {
	case e1000_82545_rev_3:
	case e1000_82546_rev_3:
		break;
	default:
		/* Workaround for PCI-X problem when BIOS sets MMRBC incorrectly. */
		if (hw->bus_type == e1000_bus_type_pcix
		    && e1000_pcix_get_mmrbc(hw) > 2048)
			e1000_pcix_set_mmrbc(hw, 2048);
		break;
	}

e1000_pcix_get_mmrbc() is basically a wrapper for a call to pcix_get_mmrbc().
e1000_pcix_set_mmrbc() is the same for pcix_set_mmrbc().

The following three patches are a response to the problems that were found to
exist with pcix_get_max_mmrbc(), pcix_get_mmrbc() and pcix_set_mmrbc().

Versions of these patches applicable to RHEL4 were verified by the customer to
solve their problem.

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ