Bug 1659108
| Summary: | performance regression in libcurl caused by the use of PK11_CreateManagedGenericObject() | |||
|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | fbh | |
| Component: | nss-pem | Assignee: | Kamil Dudka <kdudka> | |
| Status: | CLOSED ERRATA | QA Contact: | Daniel Rusek <drusek> | |
| Severity: | urgent | Docs Contact: | ||
| Priority: | urgent | |||
| Version: | 7.6 | CC: | chiluk, drusek, ebenes, fkrska, fsumsal, giomac, hkario, kdudka, szidek | |
| Target Milestone: | rc | Keywords: | Regression, ZStream | |
| Target Release: | --- | |||
| Hardware: | All | |||
| OS: | Linux | |||
| Whiteboard: | ||||
| Fixed In Version: | nss-pem-1.0.3-6.el7 | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 1667121 (view as bug list) | Environment: | ||
| Last Closed: | 2019-08-06 13:01:20 UTC | Type: | Bug | |
| Regression: | --- | Mount Type: | --- | |
| Documentation: | --- | CRM: | ||
| Verified Versions: | Category: | --- | ||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | ||
| Cloudforms Team: | --- | Target Upstream Version: | ||
| Embargoed: | ||||
| Bug Depends On: | ||||
| Bug Blocks: | 1667121 | |||
The only reason why libcurl started to use PK11_CreateManagedGenericObject() in RHEL-7.6 was to reduce the memory consumption. It was also successfully verified that the memory footprint was reduced in the most common scenario. Of course, some unexpected side effects might have happened. I will have a look at your reproducer. As a workaround, you can use CA bundle with fewer certificates inside, or avoid loading certificates from files at all and use the native NSS database instead. Thanks for the update. As the issue looks to be an over time issue I'm not sure loading a smaller crt/pem file will solve the issue. This was found in long running jobs that after only running for minuttets would start showing this behaviour. I posted the small php script as an example to reproduce. Our main job does more than this as well but the smaller script was easier for reproducibility. I'm not sure a smaller file do anything more than delay the issue. For now our workaround has been to roll back libcurl and curl to the previous version and excluded them from being updated by yum and yum-cron. I tried your PHP reproducer against a local TLS server and the system CA bundle. I cannot confirm the increase of memory usage -- the memory usage is actually lower after the update of libcurl. However, I was able to observe increase of CPU usage after the update. I suspect that it is caused by the array in nss-pem that holds pointers to all allocated PKCS #11 objects. The array is searched sequentially and grows over the time. The array has always been there but it probably grows faster now when PK11_CreateManagedGenericObject() is used. I will need to analyze the root cause and optimize it somehow in a backward-compatible way. > I'm not sure a smaller file do anything more than delay the issue. Yes, it was suggested as a workaround. > For now our workaround has been to roll back libcurl and curl to the previous version and excluded them from being updated by yum and yum-cron. Good until there is a security update of (lib)curl, which I would not recommend to exclude. We can confirm that the memory issue is possibly not the elephant in the room in terms of what caused issues and made us raise the issue. It was sparked by an extremely slow running job that used libcurl that we were debugging on and noticed the long time used post reading the PEM cert end pre opening the connection to the web service.
We have made a new script that much faster reproduces the issue and also confirms the heavily increase CPU usage.
Before running the script run:
yum install httpd mod_ssl -y
systemctl start httpd
This starts a local http server that we can use to test against.
Script:
<?php
error_reporting(E_ALL^E_NOTICE);
echo "starting...".PHP_EOL;
echo PHP_EOL;
$handle = null;
$handlestop = null;
$sec = time();
$total = 0;
while(true) {
if($sec < time()) {
$sec = time();
echo "$counter HTTPS calls per second. Total $total calls. My CPU usage: " . my_cpu_usage() . "% \n";
$counter = 0;
} else {
$total++;
webcall();
$counter++;
}
}
function webcall() {
$url = 'https://127.0.0.1/test';
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec($ch);
$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
if ($httpcode == 200) // (no content) == event success
return true;
return false;
}
function my_cpu_usage() {
exec('ps aux |awk \'$2 == "' . getmypid() . '" { print $3 }\'', $out);
return current($out);
}
After a short while, approximately 70 calls we see the issue occur and and CPU usage starts to rise until it maxes out the entire CPU.
We appreciate the further investigation into the issue and will stand by if there is anything else we need to provide.
As for the job runner that uses libcurl and the CPU consumption, we won't be able to upgrade to the newer libcurl even if further security updates happen as the job runners won't be able to keep up with realtime data handling if the CPU issue is still a factor in an upgraded libcurl.
I confirm, this caused issues with 3rd party applications, like in my case it made Zabbix completely useless with web monitoring: https://support.zabbix.com/browse/ZBX-15312 I have confirmed my hypothesis. With the old version of libcurl, the global array in nss-pem stays of a fixed size (when loading CA certificates only) whereas, with the new version, the array grows unboundedly. Luckily, all the unnecessarily allocated array elements are NULL pointers. So I will try to replace the array by a linked list to eliminate this waste. I have a work-in-progress version of the fix for nss-pem, will be able to share it tomorrow hopefully... Would anyone be able to test an experimental build of nss-pem with the fix included (together with libcurl-7.29.0-51.el7)? upstream pull-request: https://github.com/kdudka/nss-pem/pull/2 copr with experimental build of nss-pem that contains the fix for this bug: https://copr.fedorainfracloud.org/coprs/kdudka/nss-pem/ Looking forward for your feedback! Updates nss-pem with the package: nss-pem x86_64 1.0.4.20181221.153303.gbc177c0.gl_list-1.el7 kdudka-nss-pem 72 k I can confirm that it appears that the bug has been resolved. The test script now runs continuously with the same amount of requests per second (way more than before) and does not consume more CPU than it should. Test performed over 5 minutes. Using the old script everything would be stalled after that amount of time. Perfect. Thank you for testing the package! upstream commits: https://github.com/kdudka/nss-pem/commit/8fc25a6b https://github.com/kdudka/nss-pem/commit/5a14b625 https://github.com/kdudka/nss-pem/commit/188c63f7 What does the timeline look like for getting this released to Rhel/Centos 7 repos? Also thanks Kamil for the hard work. I am doing my best to get the fix out ASAP. The timeline does not depend on me though. If you are a customer of Red Hat, please open a customer case for this. It would help to prioritize the bug. Sorry for the troubles! We have also now tested the proposed package and confirm that it resolves our issues as well. What is the timeline for getting this released? (In reply to David Chiluk from comment #25) > What is the timeline for getting this released? We strive hard to get the fix out as soon as possible. No timeline guarantees via Bugzilla though... This bug has been fixed in nss-pem-1.0.3-5.el7_6.1:
https://access.redhat.com/errata/RHBA-2019:0500
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2019:2175 |
Description of problem: When setting up a PHP job that runs and loops calls to the internet over ssl, it starts to use more and more time and memory for memory allocation the more we often we open the pem file and connect to the internet. It's clear from traces (strace) that between reading the PEM cert and connecting to the internet the process starts after a while to use more and more time for memory allocation and the process starts slowing down over time. Often to become over 500% slower to handle each connection + request going to the internet. Downgrading curl and libcurl to version 7.29.0-46 from version 7.29.0-51 resolves the issue as its no longer using the PL11_CreateManagedGenericObject() function in nss Version-Release number of selected component (if applicable): Curl and libcurl version 7.29.0-51 How reproducible: Steps to Reproduce: 1. Create a php script that posts to google.com (could be any API call over ssl) <?php error_reporting(E_ALL^E_NOTICE); echo "starting...".PHP_EOL; echo PHP_EOL; $handle = null; $handlestop = null; while(true) { $a = webcall(); usleep(1000000); } function webcall() { $url = 'https://www.google.com'; $ch = curl_init($url); curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST"); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $result = curl_exec($ch); $httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE); curl_close($ch); if ($httpcode == 200) // (no content) == event success return true; return false; } 2. run script eg: php test.php 3. Strace script: strace -p <PidOfScript> Actual results: Initial start: stat("/etc/pki/tls/certs/ca-bundle.crt", {st_mode=S_IFREG|0444, st_size=211658, ...}) = 0 open("/etc/pki/tls/certs/ca-bundle.crt", O_RDONLY) = 7 fstat(7, {st_mode=S_IFREG|0444, st_size=211658, ...}) = 0 read(7, "# ACCVRAIZ1\n-----BEGIN CERTIFICA"..., 211658) = 211658 close(7) = 0 fcntl(3, F_GETFL) = 0x802 (flags O_RDWR|O_NONBLOCK) fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 getpeername(3, {sa_family=AF_INET, sin_port=htons(443), sin_addr=inet_addr("216.58.211.132")}, [16]) = 0 close(6) = 0 Second phase: stat("/etc/pki/tls/certs/ca-bundle.crt", {st_mode=S_IFREG|0444, st_size=211658, ...}) = 0 open("/etc/pki/tls/certs/ca-bundle.crt", O_RDONLY) = 7 fstat(7, {st_mode=S_IFREG|0444, st_size=211658, ...}) = 0 read(7, "# ACCVRAIZ1\n-----BEGIN CERTIFICA"..., 211658) = 211658 close(7) = 0 brk(NULL) = 0x5614d5a8d000 brk(NULL) = 0x5614d5a8d000 brk(0x5614d5a18000) = 0x5614d5a18000 brk(NULL) = 0x5614d5a18000 brk(NULL) = 0x5614d5a18000 brk(0x5614d5a4f000) = 0x5614d5a4f000 brk(NULL) = 0x5614d5a4f000 brk(0x5614d5a88000) = 0x5614d5a88000 fcntl(3, F_GETFL) = 0x802 (flags O_RDWR|O_NONBLOCK) fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 getpeername(3, {sa_family=AF_INET, sin_port=htons(443), sin_addr=inet_addr("216.58.211.132")}, [16]) = 0 close(6) Totally broken phase: stat("/etc/pki/tls/certs/ca-bundle.crt", {st_mode=S_IFREG|0444, st_size=211658, ...}) = 0 open("/etc/pki/tls/certs/ca-bundle.crt", O_RDONLY) = 7 fstat(7, {st_mode=S_IFREG|0444, st_size=211658, ...}) = 0 read(7, "# ACCVRAIZ1\n-----BEGIN CERTIFICA"..., 211658) = 211658 close(7) = 0 brk(NULL) = 0x5614d5ae4000 brk(NULL) = 0x5614d5ae4000 brk(0x5614d5a1a000) = 0x5614d5a1a000 brk(NULL) = 0x5614d5a1a000 brk(NULL) = 0x5614d5a1a000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab0000) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab0000) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab0000) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab0000) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab0000) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab0000) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab0000) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab0000) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab0000) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab0000) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab0000) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab0000) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(NULL) = 0x5614d5ab0000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7e000) = 0x5614d5a7e000 brk(NULL) = 0x5614d5a7e000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4c000) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(NULL) = 0x5614d5a4c000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab1000) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(NULL) = 0x5614d5ab1000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab2000) = 0x5614d5ab2000 brk(NULL) = 0x5614d5ab2000 brk(NULL) = 0x5614d5ab2000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab2000) = 0x5614d5ab2000 brk(NULL) = 0x5614d5ab2000 brk(NULL) = 0x5614d5ab2000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab2000) = 0x5614d5ab2000 brk(NULL) = 0x5614d5ab2000 brk(NULL) = 0x5614d5ab2000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab2000) = 0x5614d5ab2000 brk(NULL) = 0x5614d5ab2000 brk(NULL) = 0x5614d5ab2000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab2000) = 0x5614d5ab2000 brk(NULL) = 0x5614d5ab2000 brk(NULL) = 0x5614d5ab2000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab2000) = 0x5614d5ab2000 brk(NULL) = 0x5614d5ab2000 brk(NULL) = 0x5614d5ab2000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab2000) = 0x5614d5ab2000 brk(NULL) = 0x5614d5ab2000 brk(NULL) = 0x5614d5ab2000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab2000) = 0x5614d5ab2000 brk(NULL) = 0x5614d5ab2000 brk(NULL) = 0x5614d5ab2000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a7f000) = 0x5614d5a7f000 brk(NULL) = 0x5614d5a7f000 brk(0x5614d5ab2000) = 0x5614d5ab2000 brk(NULL) = 0x5614d5ab2000 brk(NULL) = 0x5614d5ab2000 brk(0x5614d5a4d000) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(NULL) = 0x5614d5a4d000 brk(0x5614d5a80000) = 0x5614d5a80000 brk(NULL) = 0x5614d5a80000 brk(0x5614d5ab3000) = 0x5614d5ab3000 brk(NULL) = 0x5614d5ab3000 brk(0x5614d5ae5000) = 0x5614d5ae5000 brk(NULL) = 0x5614d5ae5000 brk(NULL) = 0x5614d5ae5000 brk(0x5614d5a80000) = 0x5614d5a80000 brk(NULL) = 0x5614d5a80000 brk(NULL) = 0x5614d5a80000 brk(0x5614d5ab3000) = 0x5614d5ab3000 brk(NULL) = 0x5614d5ab3000 brk(0x5614d5ae5000) = 0x5614d5ae5000 brk(NULL) = 0x5614d5ae5000 brk(NULL) = 0x5614d5ae5000 brk(0x5614d5a80000) = 0x5614d5a80000 brk(NULL) = 0x5614d5a80000 brk(NULL) = 0x5614d5a80000 brk(0x5614d5ab3000) = 0x5614d5ab3000 brk(NULL) = 0x5614d5ab3000 brk(0x5614d5ae5000) = 0x5614d5ae5000 brk(NULL) = 0x5614d5ae5000 brk(NULL) = 0x5614d5ae5000 brk(0x5614d5a80000) = 0x5614d5a80000 brk(NULL) = 0x5614d5a80000 brk(NULL) = 0x5614d5a80000 brk(0x5614d5ab3000) = 0x5614d5ab3000 brk(NULL) = 0x5614d5ab3000 brk(0x5614d5ae5000) = 0x5614d5ae5000 brk(NULL) = 0x5614d5ae5000 brk(NULL) = 0x5614d5ae5000 brk(0x5614d5a80000) = 0x5614d5a80000 brk(NULL) = 0x5614d5a80000 brk(NULL) = 0x5614d5a80000 brk(0x5614d5ab3000) = 0x5614d5ab3000 brk(NULL) = 0x5614d5ab3000 brk(0x5614d5ae5000) = 0x5614d5ae5000 brk(NULL) = 0x5614d5ae5000 brk(NULL) = 0x5614d5ae5000 brk(0x5614d5a80000) = 0x5614d5a80000 brk(NULL) = 0x5614d5a80000 brk(NULL) = 0x5614d5a80000 brk(0x5614d5ab3000) = 0x5614d5ab3000 brk(NULL) = 0x5614d5ab3000 brk(0x5614d5ae5000) = 0x5614d5ae5000 brk(NULL) = 0x5614d5ae5000 brk(NULL) = 0x5614d5ae5000 brk(0x5614d5a80000) = 0x5614d5a80000 brk(NULL) = 0x5614d5a80000 brk(NULL) = 0x5614d5a80000 brk(0x5614d5ab3000) = 0x5614d5ab3000 brk(NULL) = 0x5614d5ab3000 brk(0x5614d5ae5000) = 0x5614d5ae5000 brk(NULL) = 0x5614d5ae5000 brk(NULL) = 0x5614d5ae5000 brk(0x5614d5a80000) = 0x5614d5a80000 brk(NULL) = 0x5614d5a80000 brk(NULL) = 0x5614d5a80000 brk(0x5614d5ab3000) = 0x5614d5ab3000 brk(NULL) = 0x5614d5ab3000 brk(0x5614d5ae5000) = 0x5614d5ae5000 brk(NULL) = 0x5614d5ae5000 brk(NULL) = 0x5614d5ae5000 brk(0x5614d5a80000) = 0x5614d5a80000 brk(NULL) = 0x5614d5a80000 fcntl(3, F_GETFL) = 0x802 (flags O_RDWR|O_NONBLOCK) fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 getpeername(3, {sa_family=AF_INET, sin_port=htons(443), sin_addr=inet_addr("216.58.211.132")}, [16]) = 0 close(6) Expected results: We don't excpect brk(NULL) and brk(0x111111111111) memory allocation calls between reading the PEM/CRT file and opening the connection over https. Additional info: This coincides with the change to use PK11_CreateManagedGenericObject() in NSS in bug 1510247: https://www.redhat.com/archives/rhsa-announce/2018-October/msg00052.html