#!/bin/bash # # Copyright (c) 2011 Bryan Schumaker # # Script for easier NFSD fault injection # Check that debugfs has been mounted DEBUGFS=`cat /proc/mounts | grep debugfs` if [ "$DEBUGFS" == "" ]; then echo "debugfs does not appear to be mounted!" echo "Please mount debugfs and try again" exit 1 fi # Check that the fault injection directory exists DEBUGDIR=`echo $DEBUGFS | awk '{print $2}'`/nfsd if [ ! -d "$DEBUGDIR" ]; then echo "$DEBUGDIR does not exist" echo "Check that your .config selects CONFIG_NFSD_FAULT_INJECTION" exit 1 fi function help() { echo "Usage $0 injection_type [count]" echo "" echo "Injection types are:" ls $DEBUGDIR exit 1 } if [ $# == 0 ]; then help elif [ ! -f $DEBUGDIR/$1 ]; then help elif [ $# != 2 ]; then COUNT=0 else COUNT=$2 fi BEFORE=`mktemp` AFTER=`mktemp` dmesg > $BEFORE echo $COUNT > $DEBUGDIR/$1 dmesg > $AFTER # Capture lines that only exist in the $AFTER file diff $BEFORE $AFTER | grep ">" rm -f $BEFORE $AFTER fef358bd1beb4e7b5c94eca944be9cd23dfc752'/> net-next plumbingsTobias Klauser
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authorChristoph Hellwig <hch@lst.de>2017-01-30 13:15:41 +0100
committerBjorn Helgaas <bhelgaas@google.com>2017-02-02 10:35:46 -0600
commitdfef358bd1beb4e7b5c94eca944be9cd23dfc752 (patch)
treeb9a2afb38a4c2ac8ad31f49ec0d71fe9e5b1994c /include/dt-bindings/reset/mt8173-resets.h
parent030305d69fc6963c16003f50d7e8d74b02d0a143 (diff)
PCI/MSI: Don't apply affinity if there aren't enough vectors left
Bart reported a problem wіth an out of bounds access in the low-level IRQ affinity code, which we root caused to the qla2xxx driver assigning all its MSI-X vectors to the pre and post vectors, and not having any left for the actually spread IRQs. Fix this issue by not asking for affinity assignment when there are no vectors to assign left. Fixes: 402723ad5c62 ("PCI/MSI: Provide pci_alloc_irq_vectors_affinity()") Link: https://lkml.kernel.org/r/1485359225.3093.3.camel@sandisk.com Reported-by: Bart Van Assche <bart.vanassche@sandisk.com> Tested-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'include/dt-bindings/reset/mt8173-resets.h')