#!/bin/bash # # Check the console output from a torture run for goodness. # The "file" is a pathname on the local system, and "title" is # a text string for error-message purposes. # # The file must contain torture output, but can be interspersed # with other dmesg text, as in console-log output. # # Usage: parse-torture.sh file title # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, you can access it online at # http://www.gnu.org/licenses/gpl-2.0.html. # # Copyright (C) IBM Corporation, 2011 # # Authors: Paul E. McKenney T=/tmp/parse-torture.sh.$$ file="$1" title="$2" trap 'rm -f $T.seq' 0 . functions.sh # check for presence of torture output file. if test -f "$file" -a -r "$file" then : else echo $title unreadable torture output file: $file exit 1 fi # check for abject failure if grep -q FAILURE $file || grep -q -e '-torture.*!!!' $file then nerrs=`grep --binary-files=text '!!!' $file | tail -1 | awk '{for (i=NF-8;i<=NF;i++) sum+=$i; } END {print sum}'` print_bug $title FAILURE, $nerrs instances echo " " $url exit fi grep --binary-files=text 'torture:.*ver:' $file | grep --binary-files=text -v '(null)' | sed -e 's/^(initramfs)[^]]*] //' -e 's/^\[[^]]*] //' | awk ' BEGIN { ver = 0; badseq = 0; } { if (!badseq && ($5 + 0 != $5 || $5 <= ver)) { badseqno1 = ver; badseqno2 = $5; badseqnr = NR; badseq = 1; } ver = $5 } END { if (badseq) { if (badseqno1 == badseqno2 && badseqno2 == ver) print "GP HANG at " ver " torture stat " badseqnr; else print "BAD SEQ " badseqno1 ":" badseqno2 " last:" ver " version " badseqnr; } }' > $T.seq if grep -q SUCCESS $file then if test -s $T.seq then print_warning $title $title `cat $T.seq` echo " " $file exit 2 fi else if grep -q "_HOTPLUG:" $file then print_warning HOTPLUG FAILURES $title `cat $T.seq` echo " " $file exit 3 fi echo $title no success message, `grep --binary-files=text 'ver:' $file | wc -l` successful version messages if test -s $T.seq then print_warning $title `cat $T.seq` fi exit 2 fi path'>path: root/include/scsi/iser.h
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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2017-02-03 17:10:28 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2017-02-08 23:36:29 +1100
commitd7df2443cd5f67fc6ee7c05a88e4996e8177f91b (patch)
tree098a7c0ca4fceb8a65cb1f693c9d71990388933d /include/scsi/iser.h
parenta0615a16f7d0ceb5804d295203c302d496d8ee91 (diff)
powerpc/mm: Fix spurrious segfaults on radix with autonuma
When autonuma (Automatic NUMA balancing) marks a PTE inaccessible it clears all the protection bits but leave the PTE valid. With the Radix MMU, an attempt at executing from such a PTE will take a fault with bit 35 of SRR1 set "SRR1_ISI_N_OR_G". It is thus incorrect to treat all such faults as errors. We should pass them to handle_mm_fault() for autonuma to deal with. The case of pages that are really not executable is handled by the existing test for VM_EXEC further down. That leaves us with catching the kernel attempts at executing user pages. We can catch that earlier, even before we do find_vma. It is never valid on powerpc for the kernel to take an exec fault to begin with. So fold that test with the existing test for the kernel faulting on kernel addresses to bail out early. Fixes: 1d18ad026844 ("powerpc/mm: Detect instruction fetch denied and report") Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'include/scsi/iser.h')