Waybar: WayBar randomly crashes

Created on 16 May 2019  路  21Comments  路  Source: Alexays/Waybar

Hey guys, so I recently installed sway on my new Fedora 30 machine with waybar. And I have been experiencing quite a lot of crashes, I was wondering if this is a problem on my side or something els.

Thanks
GeoDerp

The common crash note:

/usr/include/c++/9/bits/stl_stack.h:200: std::stack<_Tp, _Sequence>::reference std::stack<_Tp, _Sequence>::top() [with _Tp = Json::Value*; _Sequence = std::deque<Json::Value*, std::allocator<Json::Value*> >; std::stack<_Tp, _Sequence>::reference = Json::Value*&]: Assertion '__builtin_expect(!this->empty(), true)' failed.
Aborted (core dumped)

Other crash notes:

* Line 1, Column 21
  Missing ',' or ']' in array declaration

Workspaces: in Json::Value::resolveReference(key, end): requires objectValue
/usr/include/c++/9/bits/stl_stack.h:200: std::stack<_Tp, _Sequence>::reference std::stack<_Tp, _Sequence>::top() [with _Tp = Json::Value*; _Sequence = std::deque<Json::Value*, std::allocator<Json::Value*> >; std::stack<_Tp, _Sequence>::reference = Json::Value*&]: Assertion '__builtin_expect(!this->empty(), true)' failed.
Workspaces: * Line 1, Column 2
  Missing ':' after object member name
* Line 1, Column 24
  Syntax error: value, object or array expect
ed.

double free or corruption (out)
Aborted (core dumped)



md5-4c5d636f7ccc0b6a95a6299508e7e114



Disabling module "backlight", No backlight found
Disabling module "battery", No batteries.
Disabling module "battery#bat2", No battery named BAT2
[New Thread 0x7fffaaffd700 (LWP 28544)]
[Thread 0x7fffe7b79700 (LWP 28514) exited]
/usr/include/c++/9/bits/stl_stack.h:200: std::stack<_Tp, _Sequence>::reference std::stack<_Tp, _Sequence>::top() [with _Tp = Json::Value*; _Sequence = std::deque<Json::Value*, std::allocator<Json::Value*> >; std::stack<_Tp, _Sequence>::reference = Json::Value*&]: Assertion '__builtin_expect(!this->empty(), true)' failed.

Thread 6 "waybar" received signal SIGABRT, Aborted.
[Switching to Thread 0x7fffe5fe1700 (LWP 28517)]
0x00007ffff6531eb5 in raise () from /lib64/libc.so.6



md5-9e07fb24db10c297bafe400d946f1bd6



Waybar v0.6.0

My WayBar conf's:

question
Source
picture GeoDerp

All 21 comments

Theses crash must be fixed on master and in the upcoming version (0.6.4)

Alexays picture Alexays on 16 May 2019 
* Line 1, Column 21
  Missing ',' or ']' in array declaration

Is a syntax pb from your config file

Alexays picture Alexays on 16 May 2019 
* Line 1, Column 21
  Missing ',' or ']' in array declaration

Is a syntax pb from your config file

I don't believe so, After a quick check I could't find anything. Do Keep in mind that:
```shell

  • Line 1, Column 21
    Missing ',' or ']' in array declaration
Does not come up often or at all comparing to: 
```shell
/usr/include/c++/9/bits/stl_stack.h:200: std::stack<_Tp, _Sequence>::reference std::stack<_Tp, _Sequence>::top() [with _Tp = Json::Value*; _Sequence = std::deque<Json::Value*, std::allocator<Json::Value*> >; std::stack<_Tp, _Sequence>::reference = Json::Value*&]: Assertion '__builtin_expect(!this->empty(), true)' failed.
Aborted (core dumped)

which can happen from every 2 min's to every 30min's

GeoDerp picture GeoDerp on 16 May 2019

Can you check with the master version?

Alexays picture Alexays on 16 May 2019

config

Probably can't see it, but there isn't too much syntax wise that makes it different from the master (master is the one on the left)

I did however noticed from that image, some icon changes as well as some slight modification on the network module which I have just implemented in my config here .

But i'm still getting this error:
/usr/include/c++/9/bits/stl_stack.h:200: std::stack<_Tp, _Sequence>::reference std::stack<_Tp, _Sequence>::top() [with _Tp = Json::Value*; _Sequence = std::deque<Json::Value*, std::allocator<Json::Value*> >; std::stack<_Tp, _Sequence>::reference = Json::Value*&]: Assertion '__builtin_expect(!this->empty(), true)' failed.

GeoDerp picture GeoDerp on 16 May 2019

I have also gotten this just then:

Workspaces: assert json failed
* Line 1, Column 21
  Missing ',' or ']' in array declaration

Workspaces: assert json failed

This wasn't a crash error, but an error none then less

GeoDerp picture GeoDerp on 16 May 2019

No i mean by the master version, waybar itself, not configs files :)

Alexays picture Alexays on 16 May 2019

No i mean by the master version, waybar itself, not configs files :)

hahaha, aaaaaaah, sorry it's been a long day. I'm currently using the 0.6.3 tag but ill compile the master into a rpm and try that....... Tomorrow ;)

GeoDerp picture GeoDerp on 16 May 2019
👍1

Built Waybar from master (a1ffa7f) today. I still get seemingly random crashes. Built and ran Waybar with debugoptimized and got the following BT. Hope it helps.

https://gist.github.com/firat/8653f6c63596383d8eb703a62d9ae4d4

firat picture firat on 17 May 2019

@firat It doesn't help me much, do you do anything in particular before the crash?
Does this happen often?
If this happens often can you test by removing modules one by one to see if it comes from a particular module? :)

Alexays picture Alexays on 17 May 2019

@Alexays it's hard to tell. I usually takes me a while to notice that Waybar is gone. It's hard to notice it crashed. Maybe sending a notification when it crashes might be a solution. I'll see if I can write a wrapper script to run waybar and send a notification when it exits.

firat picture firat on 17 May 2019

This seems to be happening when I plug/unplug an external display.

firat picture firat on 17 May 2019

This happens to me randomly too with latest git. Best I can say is when switching workspaces. How can I run waybar to get more debugging information?


Strace before a crash

sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\25\0\0\0\1\0\24\0\35\0\0\0\0\0\0\0\0\0\0\0\25\0\0\0\10\0\f\0\1\0\0\0"..., iov_len=76}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_DONTWAIT|MSG_NOSIGNAL) = 76
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=12, events=POLLIN}], 4, 0) = 0 (Timeout)
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=12, events=POLLIN}], 4, -1) = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\35\0\0\0\0\0\10\0", iov_len=2924}, {iov_base="", iov_len=1172}], msg_iovlen=2, msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_CMSG_CLOEXEC) = 8
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=12, events=POLLIN}], 4, -1) = 1 ([{fd=3, revents=POLLIN}])
recvmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\37\0\0\0\0\0\f\0,z\211\0\1\0\0\0\1\0\f\0\37\0\0\0", iov_len=2916}, {iov_base="", iov_len=1180}], msg_iovlen=2, msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_CMSG_CLOEXEC) = 24
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=12, events=POLLIN}], 4, -1) = 2 ([{fd=5, revents=POLLIN}, {fd=12, revents=POLLIN}])
read(5, "\1\0\0\0\0\0\0\0", 16)         = 8
read(12, "\10\230\205\16\231U\0\0\320\246\202\16\231U\0\0", 16) = 16
poll([{fd=3, events=POLLIN}, {fd=5, events=POLLIN}, {fd=10, events=POLLIN}, {fd=12, events=POLLIN}], 4, 0) = 0 (Timeout)
writev(2, [{iov_base="*** ", iov_len=4}, {iov_base="stack smashing detected", iov_len=23}, {iov_base=" ***: ", iov_len=6}, {iov_base="<unknown>", iov_len=9}, {iov_base=" terminated\n", iov_len=12}], 5*** stack smashing detected ***: <unknown> terminated
) = 54
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff6c8004000
rt_sigprocmask(SIG_UNBLOCK, [ABRT], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, ~[RTMIN RT_1], [], 8) = 0
getpid()                                = 1443
gettid()                                = 1443
tgkill(1443, 1443, SIGABRT)             = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGABRT {si_signo=SIGABRT, si_code=SI_TKILL, si_pid=1443, si_uid=1000} ---
+++ killed by SIGABRT (core dumped) ++

fmartingr picture fmartingr on 18 May 2019

Okay, I figured it out this came from the network module.

Alexays picture Alexays on 18 May 2019

I updated from master (because I read the email notification directly) and now some icons are missing, but I'm sure you're aware of it because the edits. :+1:

fmartingr picture fmartingr on 18 May 2019

Some icons?

Alexays picture Alexays on 18 May 2019

Some icons?

Yeah, after updating from master by ethernet/vpn icons are gone:

image

image

fmartingr picture fmartingr on 18 May 2019

Oh i see, fixed on master

Alexays picture Alexays on 18 May 2019

Oh i see, fixed on master

Confirmed :+1: Thanks! (and sorry for the offtopic on the issue)

fmartingr picture fmartingr on 18 May 2019

Fixed (on my side) with aa385e28b6c2c6e8e261b6b108f3635e86796b01
I'm not a big fan of the fix but it works.
Tell me if it's not fixed for you.

Alexays picture Alexays on 18 May 2019
👍1

Mine still crashes randomly, though a lot less than before:


strace

poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
lseek(3, 0, SEEK_SET)                   = 0
read(3, "TcpExt: SyncookiesSent Syncookie"..., 8191) = 2588
lseek(3, 0, SEEK_SET)                   = 0
read(3, "TcpExt: SyncookiesSent Syncookie"..., 8191) = 2588
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 1 ([{fd=13, revents=POLLIN}])
read(13, "\270\320EE\240U\0\0\220LHE\240U\0\0", 16) = 16
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
lseek(3, 0, SEEK_SET)                   = 0
read(3, "TcpExt: SyncookiesSent Syncookie"..., 8191) = 2588
lseek(3, 0, SEEK_SET)                   = 0
read(3, "TcpExt: SyncookiesSent Syncookie"..., 8191) = 2588
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 1 ([{fd=13, revents=POLLIN}])
read(13, "\270\320EE\240U\0\0\220LHE\240U\0\0", 16) = 16
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
lseek(3, 0, SEEK_SET)                   = 0
read(3, "TcpExt: SyncookiesSent Syncookie"..., 8191) = 2588
lseek(3, 0, SEEK_SET)                   = 0
read(3, "TcpExt: SyncookiesSent Syncookie"..., 8191) = 2588
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 1 ([{fd=13, revents=POLLIN}])
read(13, "(\232HE\240U\0\0\220LHE\240U\0\0", 16) = 16
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\25\0\0\0\1\0\24\0\35\0\0\0\0\0\0\0\0\0\0\0\25\0\0\0\10\0\f\0\1\0\0\0"..., iov_len=76}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_DONTWAIT|MSG_NOSIGNAL) = 76
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 1 ([{fd=4, revents=POLLIN}])
recvmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\35\0\0\0\0\0\10\0", iov_len=3452}, {iov_base="", iov_len=644}], msg_iovlen=2, msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_CMSG_CLOEXEC) = 8
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 1 ([{fd=4, revents=POLLIN}])
recvmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\"\0\0\0\0\0\f\0%\341\374\0\1\0\0\0\1\0\f\0\"\0\0\0", iov_len=3444}, {iov_base="", iov_len=652}], msg_iovlen=2, msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_CMSG_CLOEXEC) = 24
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 1 ([{fd=13, revents=POLLIN}])
read(13, "\270\320EE\240U\0\0\220LHE\240U\0\0", 16) = 16
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
lseek(3, 0, SEEK_SET)                   = 0
read(3, "TcpExt: SyncookiesSent Syncookie"..., 8191) = 2588
lseek(3, 0, SEEK_SET)                   = 0
read(3, "TcpExt: SyncookiesSent Syncookie"..., 8191) = 2588
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 1 ([{fd=13, revents=POLLIN}])
read(13, "\270\320EE\240U\0\0\220LHE\240U\0\0", 16) = 16
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
lseek(3, 0, SEEK_SET)                   = 0
read(3, "TcpExt: SyncookiesSent Syncookie"..., 8191) = 2588
lseek(3, 0, SEEK_SET)                   = 0
read(3, "TcpExt: SyncookiesSent Syncookie"..., 8191) = 2588
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 1 ([{fd=13, revents=POLLIN}])
read(13, "\270\320EE\240U\0\0\220LHE\240U\0\0", 16) = 16
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
lseek(3, 0, SEEK_SET)                   = 0
read(3, "TcpExt: SyncookiesSent Syncookie"..., 8191) = 2588
lseek(3, 0, SEEK_SET)                   = 0
read(3, "TcpExt: SyncookiesSent Syncookie"..., 8191) = 2588
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 2 ([{fd=6, revents=POLLIN}, {fd=13, revents=POLLIN}])
read(6, "\1\0\0\0\0\0\0\0", 16)         = 8
read(13, "\10\324NE\240U\0\0\220LHE\240U\0\0", 16) = 16
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 15) = 0 (Timeout)
sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\25\0\0\0\1\0\24\0\35\0\0\0\0\0\0\0\0\0\0\0\25\0\0\0\10\0\f\0\1\0\0\0"..., iov_len=76}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_DONTWAIT|MSG_NOSIGNAL) = 76
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 1 ([{fd=4, revents=POLLIN}])
recvmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\35\0\0\0\0\0\10\0", iov_len=3420}, {iov_base="", iov_len=676}], msg_iovlen=2, msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_CMSG_CLOEXEC) = 8
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 1 ([{fd=4, revents=POLLIN}])
recvmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\"\0\0\0\0\0\f\0\5\v\375\0\1\0\0\0\1\0\f\0\"\0\0\0", iov_len=3412}, {iov_base="", iov_len=684}], msg_iovlen=2, msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_CMSG_CLOEXEC) = 24
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 1 ([{fd=13, revents=POLLIN}])
read(13, "X\237GE\240U\0\0\220LHE\240U\0\0", 16) = 16
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\25\0\0\0\1\0\24\0\35\0\0\0\0\0\0\0\0\0\0\0\25\0\0\0\10\0\f\0\1\0\0\0"..., iov_len=76}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_DONTWAIT|MSG_NOSIGNAL) = 76
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 1 ([{fd=4, revents=POLLIN}])
recvmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\35\0\0\0\0\0\10\0", iov_len=3388}, {iov_base="", iov_len=708}], msg_iovlen=2, msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_CMSG_CLOEXEC) = 8
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 1 ([{fd=4, revents=POLLIN}])
recvmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\"\0\0\0\0\0\f\0\234\21\375\0\1\0\0\0\1\0\f\0\"\0\0\0", iov_len=3380}, {iov_base="", iov_len=716}], msg_iovlen=2, msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_CMSG_CLOEXEC) = 24
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 2 ([{fd=6, revents=POLLIN}, {fd=13, revents=POLLIN}])
read(6, "\1\0\0\0\0\0\0\0", 16)         = 8
read(13, "\10\324NE\240U\0\0\220LHE\240U\0\0", 16) = 16
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 14) = 0 (Timeout)
sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\25\0\0\0\1\0\24\0\35\0\0\0\0\0\0\0\0\0\0\0\25\0\0\0\10\0\f\0\1\0\0\0"..., iov_len=76}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_DONTWAIT|MSG_NOSIGNAL) = 76
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 1 ([{fd=4, revents=POLLIN}])
recvmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\35\0\0\0\0\0\10\0", iov_len=3356}, {iov_base="", iov_len=740}], msg_iovlen=2, msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_CMSG_CLOEXEC) = 8
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 1 ([{fd=4, revents=POLLIN}])
recvmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\"\0\0\0\0\0\f\0z\24\375\0\1\0\0\0\1\0\f\0\"\0\0\0", iov_len=3348}, {iov_base="", iov_len=748}], msg_iovlen=2, msg_controllen=0, msg_flags=MSG_CMSG_CLOEXEC}, MSG_DONTWAIT|MSG_CMSG_CLOEXEC) = 24
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 1 ([{fd=13, revents=POLLIN}])
read(13, "\270\320EE\240U\0\0\220LHE\240U\0\0", 16) = 16
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
lseek(3, 0, SEEK_SET)                   = 0
read(3, "TcpExt: SyncookiesSent Syncookie"..., 8191) = 2588
lseek(3, 0, SEEK_SET)                   = 0
read(3, "TcpExt: SyncookiesSent Syncookie"..., 8191) = 2588
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 1 ([{fd=6, revents=POLLIN}])
read(6, "\1\0\0\0\0\0\0\0", 16)         = 8
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, -1) = 1 ([{fd=13, revents=POLLIN}])
read(13, "\10\324NE\240U\0\0\220LHE\240U\0\0", 16) = 16
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 0) = 0 (Timeout)
poll([{fd=4, events=POLLIN}, {fd=6, events=POLLIN}, {fd=11, events=POLLIN}, {fd=13, events=POLLIN}], 4, 15) = 0 (Timeout)
--- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x7ffd00000000} ---
+++ killed by SIGSEGV (core dumped) +++

fmartingr picture fmartingr on 26 May 2019
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