SOLVED https + chrome + OS problem

4est · Jul 13, 2017

Hello

Since this morning I have a problem with the SSL enabled accounts on my server

After a lot of research, problem occurs with these 3 parameters:

1: https host with certificate self-signed by cpanel
2: chrome
3: specific windows version (maybe android too)

Problem 1: so with chrome v59 or v58 + windows 10 10.0.15063 + https site, the outcome is:
This page isn’t working
didn’t send any data.

ERR_EMPTY_RESPONSE

Problem2:
With android + chrome + https the result is the same

WORKING:
all other browsers work fine
IOS + chrome works fine
chrome v59 + windows 10.0.14393 works fine

all https enabled hosts have this problem. you can check with:
[removed]

I see NO error on apache log
I tried disabling mod_security, lfd

I tried changing the PHP 4.4, 4.6, 7.0

I don't know what else to do, help please
Check if your chrome loads on not these hosts, and give me your thoughts

Thanks

DennisMidjord · Jul 13, 2017

Are you using Let's Encrypt? We had the same issue a few weeks back. We forced a reinstall of cPanel which somehow fixed the issue.

4est · Jul 13, 2017

I am using AutoSSL, I guess that's Let's Encrypt.

But why problems occur only with chrome and specific windows versions? was your problem the same?

DennisMidjord · Jul 13, 2017

Exactly the same. AutoSSL is by default COMODO certificates.

4est · Jul 13, 2017

so your solution was to do a "Force a reinstall even if the system is up to date."?

DennisMidjord · Jul 13, 2017

Yes. It makes no sense, I know.
We spent 1 and a half hour making sure that the certificates were indeed correct, and then we just tried forcing the upgrade. We tried countless other things before that didn't solve the issue.

cPanelMichael · Jul 13, 2017

Hello @4est,

Have you tried clearing the browser cache in Chrome when testing? If so, could you open a support ticket using the link in my signature so we can take a closer look?

Thank you.

llamadave · Jul 13, 2017

I have the exact same problem. Should I submit a ticket or wait for the solution here?

David

4est · Jul 14, 2017

I've gone so far that I deleted my chrome profile completely, uninstalled chrome, reinstalled 2 versions (v59 and v58)

The issue is even stranger: I tried on my @home notebook which has windows 10.0.15063 + chrome and there it works.

another client of mine reported the same problem, he is having it on both of his computers, one is with windows 7!

I will open a ticket

nslave · Jul 14, 2017

I am experiencing the same issue since yesterday. I cannot seem to find any pattern that would explain where the issue is. Most of the users I support have the issue with Windows OS 7/10 + Chrome for all SSL enabled sites that are hosted with us. Internet Explorer works fine, Mozilla Firefox also. Some users do not experience this issue and are able to open the sites that most users with Chrome cannot.

Requests that end up with the error ERR_EMPTY_RESPONSE do not show in the access or error logs of apache. The only issue that I see in /var/log/apache2/error_log is this:
[core:notice] [pid 4913:tid 140272935765984] AH00052: child pid 11388 exit signal Illegal instruction (4)

And it's filling the log file.

nslave · Jul 14, 2017

Well it seems that the log entries that are generated in /var/log/apache2/error_log are related to the issue because it makes a new entry every time I make a request that results in ERR_EMPTY_RESPONSE. I've made a strace on the child process that is killed but I am not that knowledgeable to make use of the information provided. I will be more than grateful if someone could point me in the right direction.

Code:

[core:notice] [pid 4913:tid 140272935765984] AH00052: child pid 27180 exit signal Illegal instruction (4)

strace of pid 27180:

Code:

14:16:13.159821 set_robust_list(0x7f93d6820ac0, 24) = 0 <0.000031>
14:16:13.159968 rt_sigaction(SIGTERM, {0x7f93d47d62c0, [], SA_RESTORER|SA_INTERRUPT, 0x7f93d538a7e0}, {0x7f93d47d39f0, [], SA_RESTORER, 0x7f93d538a7e0}, 8) = 0 <0.000049>
14:16:13.160146 geteuid()               = 0 <0.000027>
14:16:13.160215 setgid(99)              = 0 <0.000033>
14:16:13.160291 open("/proc/sys/kernel/ngroups_max", O_RDONLY) = 403 <0.000050>
14:16:13.160472 read(403, "65536\n", 31) = 6 <0.000170>
14:16:13.160709 close(403)              = 0 <0.000027>
14:16:13.160830 setgroups(1, [99])      = 0 <0.000031>
14:16:13.160982 geteuid()               = 0 <0.000063>
14:16:13.161115 setuid(99)              = 0 <0.000063>
14:16:13.161387 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000201>
14:16:13.161749 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000042>
14:16:13.161863 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.161954 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000011>
14:16:13.162003 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000011>
14:16:13.162045 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000011>
14:16:13.162115 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000234>
14:16:13.162467 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000080>
14:16:13.162684 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000118>
14:16:13.162881 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000083>
14:16:13.163051 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000067>
14:16:13.163212 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000064>
14:16:13.163389 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000069>
14:16:13.163546 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000121>
14:16:13.163737 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000231>
14:16:13.164023 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000028>
14:16:13.164081 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000203>
14:16:13.164344 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000075>
14:16:13.164498 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000386>
14:16:13.164937 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000061>
14:16:13.165066 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000308>
14:16:13.165476 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000070>
14:16:13.165622 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000293>
14:16:13.165988 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000080>
14:16:13.166148 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000328>
14:16:13.166556 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000066>
14:16:13.166707 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000246>
14:16:13.167048 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000054>
14:16:13.167183 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000242>
14:16:13.167521 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000054>
14:16:13.167650 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000303>
14:16:13.168037 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000052>
14:16:13.168162 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000332>
14:16:13.168583 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000065>
14:16:13.168740 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000315>
14:16:13.169118 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000053>
14:16:13.169262 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000295>
14:16:13.169627 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000054>
14:16:13.169764 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000227>
14:16:13.170047 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000060>
14:16:13.170168 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000265>
14:16:13.170503 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000071>
14:16:13.170654 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000250>
14:16:13.170963 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000051>
14:16:13.171119 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000274>
14:16:13.171448 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000052>
14:16:13.171576 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000259>
14:16:13.171920 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000057>
14:16:13.172057 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000230>
14:16:13.172362 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000029>
14:16:13.172443 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000242>
14:16:13.172748 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000037>
14:16:13.172957 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000247>
14:16:13.173293 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000055>
14:16:13.173437 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000345>
14:16:13.173846 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000026>
14:16:13.173915 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000259>
14:16:13.174230 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000028>
14:16:13.174308 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000352>
14:16:13.174715 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000072>
14:16:13.174871 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000239>
14:16:13.175186 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000094>
14:16:13.175392 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000278>
14:16:13.175734 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000089>
14:16:13.175923 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000255>
14:16:13.176245 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000091>
14:16:13.176410 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000230>
14:16:13.176691 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000015>
14:16:13.176751 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000339>
14:16:13.177133 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000044>
14:16:13.177251 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000254>
14:16:13.177555 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000047>
14:16:13.177672 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000232>
14:16:13.177965 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000043>
14:16:13.178075 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000206>
14:16:13.178345 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000025>
14:16:13.178407 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000354>
14:16:13.178810 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000040>
14:16:13.178922 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000225>
14:16:13.179196 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000026>
14:16:13.179271 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000202>
14:16:13.179515 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000028>
14:16:13.179594 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000302>
14:16:13.179958 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000059>
14:16:13.180090 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000254>
14:16:13.180421 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000069>
14:16:13.180575 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000240>
14:16:13.180913 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000057>
14:16:13.181051 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000241>
14:16:13.181375 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000063>
14:16:13.181491 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000225>
14:16:13.181782 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000061>
14:16:13.181919 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000551>
14:16:13.182544 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000054>
14:16:13.182674 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000262>
14:16:13.183037 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000052>
14:16:13.183151 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000276>
14:16:13.183511 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000061>
14:16:13.183630 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000217>
14:16:13.183910 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000052>
14:16:13.184057 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000162>
14:16:13.184293 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000055>
14:16:13.184434 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000277>
14:16:13.184826 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000058>
14:16:13.184972 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000314>
14:16:13.185355 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000086>
14:16:13.185543 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000284>
14:16:13.185888 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000066>
14:16:13.186051 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000271>
14:16:13.186410 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000075>
14:16:13.186570 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000276>
14:16:13.186943 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000055>
14:16:13.187085 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000236>
14:16:13.187380 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000089>
14:16:13.187549 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000311>
14:16:13.187936 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000076>
14:16:13.188091 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000276>
14:16:13.188431 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000085>
14:16:13.188619 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000233>
14:16:13.188906 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000064>
14:16:13.189045 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000299>
14:16:13.189422 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000054>
14:16:13.189551 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000263>
14:16:13.189879 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000051>
14:16:13.190009 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000263>
14:16:13.190348 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000065>
14:16:13.190502 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000239>
14:16:13.190797 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000052>
14:16:13.190929 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000231>
14:16:13.191226 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000052>
14:16:13.191402 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000212>
14:16:13.191691 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000071>
14:16:13.191832 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000238>
14:16:13.192160 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000029>
14:16:13.192241 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000396>
14:16:13.192696 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000064>
14:16:13.192859 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000243>
14:16:13.193167 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000064>
14:16:13.193334 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000269>
14:16:13.193669 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000072>
14:16:13.193825 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000229>
14:16:13.194112 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000073>
14:16:13.194296 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000311>
14:16:13.194693 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000016>
14:16:13.194749 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000380>
14:16:13.195192 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000062>
14:16:13.195370 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000309>
14:16:13.195750 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000071>
14:16:13.195860 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000317>
14:16:13.196257 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000049>
14:16:13.196433 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000253>
14:16:13.196735 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000044>
14:16:13.196848 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000238>
14:16:13.197128 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000026>
14:16:13.197193 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000340>
14:16:13.197589 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000029>
14:16:13.197660 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000397>
14:16:13.198134 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000069>
14:16:13.198311 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000290>
14:16:13.198664 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000060>
14:16:13.198859 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000133>
14:16:13.199071 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000060>
14:16:13.199276 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000202>
14:16:13.199568 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000060>
14:16:13.199740 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000256>
14:16:13.200055 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000052>
14:16:13.200180 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000184>
14:16:13.200467 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000079>
14:16:13.200631 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000219>
14:16:13.200912 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000052>
14:16:13.201025 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000186>
14:16:13.201257 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000067>
14:16:13.201383 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000281>
14:16:13.201720 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000065>
14:16:13.201830 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000214>
14:16:13.202136 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000064>
14:16:13.202364 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000190>
14:16:13.202629 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000075>
14:16:13.202806 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000234>
14:16:13.203100 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000064>
14:16:13.203254 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000200>
14:16:13.203519 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000073>
14:16:13.203703 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000234>
14:16:13.203997 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000063>
14:16:13.204150 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000169>
14:16:13.204397 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000041>
14:16:13.204513 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000307>
14:16:13.204887 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000038>
14:16:13.204992 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000296>
14:16:13.205358 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000098>
14:16:13.205621 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000129>
14:16:13.205815 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000023>
14:16:13.205887 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000185>
14:16:13.206128 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000024>
14:16:13.206202 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000164>
14:16:13.206427 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000025>
14:16:13.206507 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000157>
14:16:13.206710 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000026>
14:16:13.206823 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000120>
14:16:13.206989 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.207063 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000153>
14:16:13.207262 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.207313 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000207>
14:16:13.207569 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000022>
14:16:13.207666 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000118>
14:16:13.207834 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000022>
14:16:13.207905 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000142>
14:16:13.208095 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000022>
14:16:13.208187 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000124>
14:16:13.208360 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000012>
14:16:13.208427 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000198>
14:16:13.208666 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000028>
14:16:13.208744 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000237>
14:16:13.209015 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000013>
14:16:13.209092 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000164>
14:16:13.209295 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000028>
14:16:13.209379 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000165>
14:16:13.209593 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.209701 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000134>
14:16:13.209874 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.209946 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000163>
14:16:13.210154 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.210225 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000147>
14:16:13.210416 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000028>
14:16:13.210487 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000177>
14:16:13.210701 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.210782 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000171>
14:16:13.210992 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.211062 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000148>
14:16:13.211254 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000026>
14:16:13.211367 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000158>
14:16:13.211563 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000028>
14:16:13.211631 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000175>
14:16:13.211849 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.211918 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000216>
14:16:13.212177 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000028>
14:16:13.212245 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000174>
14:16:13.212464 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000028>
14:16:13.212533 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000150>
14:16:13.212734 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.212805 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000169>
14:16:13.213019 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000051>
14:16:13.213145 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000111>
14:16:13.213298 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000029>
14:16:13.213368 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000160>
14:16:13.213566 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.213638 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000141>
14:16:13.213822 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.213890 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000150>
14:16:13.214083 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.214152 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000159>
14:16:13.214355 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000028>
14:16:13.214425 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000163>
14:16:13.214637 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.214705 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000177>
14:16:13.214927 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.214998 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000161>
14:16:13.215209 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.215278 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000157>
14:16:13.215479 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.215549 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000164>
14:16:13.215752 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.215821 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000153>
14:16:13.216012 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.216083 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000179>
14:16:13.216306 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000028>
14:16:13.216398 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000120>
14:16:13.216555 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.216625 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000163>
14:16:13.216836 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.216907 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000152>
14:16:13.217103 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.217167 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000157>
14:16:13.217362 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000028>
14:16:13.217434 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000168>
14:16:13.217655 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.217726 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000156>
14:16:13.217927 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.217994 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000155>
14:16:13.218181 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.218251 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000157>
14:16:13.218450 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000028>
14:16:13.218522 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000132>
14:16:13.218699 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.218767 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000153>
14:16:13.218972 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.219040 semop(1835010, {{0, -1, SEM_UNDO}}, 1) = 0 <0.000159>
14:16:13.219242 semop(1835010, {{0, 1, SEM_UNDO}}, 1) = 0 <0.000027>
14:16:13.219433 rt_sigprocmask(SIG_SETMASK, ~[ILL TRAP ABRT BUS FPE SEGV USR2 PIPE SYS RTMIN RT_1], NULL, 8) = 0 <0.000036>
14:16:13.219596 mmap(NULL, 10489856, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f93cf562000 <0.000071>
14:16:13.219762 mprotect(0x7f93cf562000, 4096, PROT_NONE) = 0 <0.000022>
14:16:13.219824 clone(child_stack=0x7f93cff61f10, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tidptr=0x7f93cff629d0, tls=0x7f93cff62700, child_tidptr=0x7f93cff629d0) = 27184 <0.000399>
14:16:13.220288 rt_sigprocmask(SIG_UNBLOCK, [TERM], NULL, 8) = 0 <0.000050>
14:16:13.220413 rt_sigaction(SIGTERM, {0x7f93d47d3a70, [], SA_RESTORER|SA_INTERRUPT, 0x7f93d538a7e0}, {0x7f93d47d62c0, [], SA_RESTORER|SA_INTERRUPT, 0x7f93d538a7e0}, 8) = 0 <0.000195>
14:16:13.220716 read(7, 0x7fff98d1d98f, 1) = ? ERESTARTSYS (To be restarted if SA_RESTART is set) <0.150149>
14:16:13.370930 --- SIGILL {si_signo=SIGILL, si_code=SI_USER, si_pid=27180, si_uid=99} ---
14:16:13.372696 +++ killed by SIGILL +++

cPanelMichael · Jul 14, 2017

Hello Everyone!

Internal case EA-6544 is open to track reports where visiting a domain name over a secure URL results in a "ERR_EMPTY_RESPONSE" error message. This has been reported to happen when using the Chrome web browser on Windows and Android devices.

The current workaround is to update the "SSL Cipher Suite" value in "WHM >> Service Configuration >> Apache Configuration >> Global Configuration" to the following:
Code:
ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS
If you use a custom cipher list, then you can remove the following ciphers from your custom list as a temporary workaround:
Code:
ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305
I'll monitor the case and update this thread with more information as it becomes available.

Thank you.

4est · Jul 15, 2017

Michael apparently fixed the problem, at least on my server, so do as he instructed and it should be fine

Thanks Michael

llamadave · Jul 15, 2017

Michael's workaround also worked for me. Thanks.

David

Nik Sek · Jul 18, 2017

Hello! I also had the same problem, this workaround fixed it for me too. Thank you.

daflame · Jul 20, 2017

Thank you very much Michael! We were working on this since a week now! Does this workaround is to fix a Chrome problem or a server problem?

MasterK · Jul 21, 2017

Hello,
New member here..

We had the same issue on multiple machines, different OS's and versions of Chrome..

I pulled my hair out, and called the DC, and the SSL provider..
Some were able to re-produce, and some were not able to.

This fixed my issue..

Thank you, thank you Michael..

~MasterK

cPanelMichael · Jul 21, 2017

daflame said: ↑

Does this workaround is to fix a Chrome problem or a server problem?
Click to expand...

It looks to relate to the ea-apache24-mod_ssl RPM included with EasyApache 4, but the internal case is not yet completed. I'll provide more information about the case once it's available.

Thanks!

centroclickchile · Jul 21, 2017

I also have the same problem, I would appreciate help when there is a solution

4est · Jul 27, 2017

there IS a workaround, read the topic!

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