#!/bin/bash
#
# Script example for many flows testing
#
# Number of simultaneous flows limited by variable $FLOWS
# and number of packets per flow controlled by variable $FLOWLEN
#
basedir=`dirname $0`
source ${basedir}/functions.sh
root_check_run_with_sudo "$@"

# Parameter parsing via include
source ${basedir}/parameters.sh
# Set some default params, if they didn't get set
[ -z "$DEST_IP" ]   && DEST_IP="198.18.0.42"
[ -z "$DST_MAC" ]   && DST_MAC="90:e2:ba:ff:ff:ff"
[ -z "$CLONE_SKB" ] && CLONE_SKB="0"

# NOTICE:  Script specific settings
# =======
# Limiting the number of concurrent flows ($FLOWS)
# and also set how many packets each flow contains ($FLOWLEN)
#
[ -z "$FLOWS" ]     && FLOWS="8000"
[ -z "$FLOWLEN" ]   && FLOWLEN="10"

# Base Config
DELAY="0"  # Zero means max speed
COUNT="0"  # Zero means indefinitely

if [[ -n "$BURST" ]]; then
    err 1 "Bursting not supported for this mode"
fi

# General cleanup everything since last run
pg_ctrl "reset"

# Threads are specified with parameter -t value in $THREADS
for ((thread = 0; thread < $THREADS; thread++)); do
    dev=${DEV}@${thread}

    # Add remove all other devices and add_device $dev to thread
    pg_thread $thread "rem_device_all"
    pg_thread $thread "add_device" $dev

    # Base config
    pg_set $dev "flag QUEUE_MAP_CPU"
    pg_set $dev "count $COUNT"
    pg_set $dev "clone_skb $CLONE_SKB"
    pg_set $dev "pkt_size $PKT_SIZE"
    pg_set $dev "delay $DELAY"
    pg_set $dev "flag NO_TIMESTAMP"

    # Single destination
    pg_set $dev "dst_mac $DST_MAC"
    pg_set $dev "dst $DEST_IP"

    # Randomize source IP-addresses
    pg_set $dev "flag IPSRC_RND"
    pg_set $dev "src_min 198.18.0.0"
    pg_set $dev "src_max 198.19.255.255"

    # Limit number of flows (max 65535)
    pg_set $dev "flows $FLOWS"
    #
    # How many packets a flow will send, before flow "entry" is
    # re-generated/setup.
    pg_set $dev "flowlen $FLOWLEN"
    #
    # Flag FLOW_SEQ will cause $FLOWLEN packets from the same flow
    # being send back-to-back, before next flow is selected
    # incrementally.  This helps lookup caches, and is more realistic.
    #
    pg_set $dev "flag FLOW_SEQ"

done

# Run if user hits control-c
function print_result() {
    # Print results
    for ((thread = 0; thread < $THREADS; thread++)); do
	dev=${DEV}@${thread}
	echo "Device: $dev"
	cat /proc/net/pktgen/$dev | grep -A2 "Result:"
    done
}
# trap keyboard interrupt (Ctrl-C)
trap true SIGINT

echo "Running... ctrl^C to stop" >&2
pg_ctrl "start"

print_result
tion>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=a76a82a3e38c8d3fb6499e3dfaeb0949241ab588'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=a76a82a3e38c8d3fb6499e3dfaeb0949241ab588'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/dt-bindings?id=a76a82a3e38c8d3fb6499e3dfaeb0949241ab588'>dt-bindings</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/dt-bindings/reset?id=a76a82a3e38c8d3fb6499e3dfaeb0949241ab588'>reset</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/dt-bindings/reset/qcom,gcc-ipq806x.h?id=a76a82a3e38c8d3fb6499e3dfaeb0949241ab588'>qcom,gcc-ipq806x.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='a76a82a3e38c8d3fb6499e3dfaeb0949241ab588'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Peter Zijlstra &lt;peterz@infradead.org&gt;</td><td class='right'>2017-01-26 16:39:55 +0100</td></tr>
<tr><th>committer</th><td>Ingo Molnar &lt;mingo@kernel.org&gt;</td><td class='right'>2017-01-30 11:41:25 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/dt-bindings/reset/qcom,gcc-ipq806x.h?id=a76a82a3e38c8d3fb6499e3dfaeb0949241ab588'>a76a82a3e38c8d3fb6499e3dfaeb0949241ab588</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/dt-bindings/reset/qcom,gcc-ipq806x.h?id=a76a82a3e38c8d3fb6499e3dfaeb0949241ab588'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=a76a82a3e38c8d3fb6499e3dfaeb0949241ab588'>b5bc906278fe1ac66d75de984d26bf59b43b3ed8</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/dt-bindings/reset/qcom,gcc-ipq806x.h?id=a76a82a3e38c8d3fb6499e3dfaeb0949241ab588'>include/dt-bindings/reset/qcom,gcc-ipq806x.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/dt-bindings/reset/qcom,gcc-ipq806x.h?id=566cf877a1fcb6d6dc0126b076aad062054c2637'>566cf877a1fcb6d6dc0126b076aad062054c2637</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/dt-bindings/reset/qcom,gcc-ipq806x.h?id=a76a82a3e38c8d3fb6499e3dfaeb0949241ab588&amp;id2=566cf877a1fcb6d6dc0126b076aad062054c2637'>diff</a>)</td></tr></table>
<div class='commit-subject'>perf/core: Fix use-after-free bug</div><div class='commit-msg'>Dmitry reported a KASAN use-after-free on event-&gt;group_leader.

It turns out there's a hole in perf_remove_from_context() due to
event_function_call() not calling its function when the task
associated with the event is already dead.

In this case the event will have been detached from the task, but the
grouping will have been retained, such that group operations might
still work properly while there are live child events etc.

This does however mean that we can miss a perf_group_detach() call
when the group decomposes, this in turn can then lead to
use-after-free.

Fix it by explicitly doing the group detach if its still required.

Reported-by: Dmitry Vyukov &lt;dvyukov@google.com&gt;
Tested-by: Dmitry Vyukov &lt;dvyukov@google.com&gt;
Signed-off-by: Peter Zijlstra (Intel) &lt;peterz@infradead.org&gt;
Cc: Alexander Shishkin &lt;alexander.shishkin@linux.intel.com&gt;
Cc: Arnaldo Carvalho de Melo &lt;acme@kernel.org&gt;
Cc: Arnaldo Carvalho de Melo &lt;acme@redhat.com&gt;
Cc: Jiri Olsa &lt;jolsa@redhat.com&gt;
Cc: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
Cc: Mathieu Desnoyers &lt;mathieu.desnoyers@efficios.com&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: stable@vger.kernel.org # v4.5+
Cc: syzkaller &lt;syzkaller@googlegroups.com&gt;
Fixes: 63b6da39bb38 ("perf: Fix perf_event_exit_task() race")
Link: http://lkml.kernel.org/r/20170126153955.GD6515@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar &lt;mingo@kernel.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=a76a82a3e38c8d3fb6499e3dfaeb0949241ab588'>Diffstat</a> (limited to 'include/dt-bindings/reset/qcom,gcc-ipq806x.h')</div><table summary='diffstat' class='diffstat'>