Hi Alex,
Alex Rousskov wrote,
> On 4/6/23 06:41, Waldemar Brodkorb wrote:
>
> > There is still one assertion which happens sometimes:
> > cache.log:2023/04/06 07:24:48 kid1| assertion failed: ../src/base/CbcPointer.h:181: "EX"
> >
> > Have you ever seen this in the wild? What does it mean?
>
> This low-level assertion (where "EX" is usually spelled as "c") corresponds
> to many high-level Squid bugs, most of them fixed. Please see
> https://bugs.squid-cache.org/show_bug.cgi?id=5265#c1 for the suggested next
> steps.
We have a core dump now. Ubuntu 22.04 with Squid 5.8.
gdb /usr/sbin/squid core.13.873301.1681462147
GNU gdb (Ubuntu 12.1-0ubuntu1~22.04) 12.1
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Reading symbols from /usr/sbin/squid...
Reading symbols from /usr/lib/debug/.build-id/4d/655715326bdce358de6a95a564b6e4e ec84d5e.debug...
[New LWP 873301]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `(squid-1) --kid squid-1 --foreground -sYC'.
Program terminated with signal SIGABRT, Aborted.
--Type <RET> for more, q to quit, c to continue without paging--
#0 __pthread_kill_implementation (no_tid=0, signo=6, threadid=140419666299392)
at ./nptl/pthread_kill.c:44
44 ./nptl/pthread_kill.c: No such file or directory.
(gdb) bt full
#0 __pthread_kill_implementation (no_tid=0, signo=6, threadid=140419666299392)
at ./nptl/pthread_kill.c:44
tid = <optimized out>
ret = 0
pd = 0x7fb600544a00
old_mask = {__val = {94534848520128, 94535132367528, 94533992246864,
94532923700193, 94532920519424, 94532966275696, 94533267707520,
140419709921070, 94534848520128, 0, 140723926211296,
94532958412936, 0, 8, 26902275, 140419709808628}}
ret = <optimized out>
pd = <optimized out>
old_mask = <optimized out>
ret = <optimized out>
tid = <optimized out>
ret = <optimized out>
resultvar = <optimized out>
resultvar = <optimized out>
__arg3 = <optimized out>
__arg2 = <optimized out>
__arg1 = <optimized out>
_a3 = <optimized out>
_a2 = <optimized out>
_a1 = <optimized out>
--Type <RET> for more, q to quit, c to continue without paging--
__futex = <optimized out>
resultvar = <optimized out>
__arg3 = <optimized out>
__arg2 = <optimized out>
__arg1 = <optimized out>
_a3 = <optimized out>
_a2 = <optimized out>
_a1 = <optimized out>
__futex = <optimized out>
__private = <optimized out>
__oldval = <optimized out>
result = <optimized out>
#1 __pthread_kill_internal (signo=6, threadid=140419666299392)
at ./nptl/pthread_kill.c:78
No locals.
#2 __GI___pthread_kill (threadid=140419666299392, signo=signo at entry=6)
at ./nptl/pthread_kill.c:89
No locals.
#3 0x00007fb602aa7476 in __GI_raise (sig=sig at entry=6)
at ../sysdeps/posix/raise.c:26
ret = <optimized out>
#4 0x00007fb602a8d7f3 in __GI_abort () at ./stdlib/abort.c:79
save_stage = 1
--Type <RET> for more, q to quit, c to continue without paging--
act = {__sigaction_handler = {sa_handler = 0x55fa2959746f,
sa_sigaction = 0x55fa2959746f}, sa_mask = {__val = {
18446744073709551288, 11, 140723926211456, 94532958412928, 181,
94532923913327, 140419705906387, 140723926211472,
140723926211456, 94532958412928, 94532925905808,
140723926211472, 94532920570578, 94533607213200, 99, 99}},
sa_flags = 1335251568, sa_restorer = 0x55fa2959746f}
sigs = {__val = {32, 0, 94533607213200, 6, 99, 140723926211136,
94532958413328, 0, 99, 16762180390345294848, 94532958413040,
140723926211456, 0, 94532958413328, 99, 16762180390345294848}}
#5 0x000055fa29124e55 in xassert (msg=<optimized out>, file=<optimized out>,
line=<optimized out>) at ./src/debug.cc:624
__FUNCTION__ = <optimized out>
#6 0x000055fa29118734 in CbcPointer<BodyProducer>::operator-> (
this=<optimized out>) at ../src/base/CbcPointer.h:181
c = <optimized out>
#7 CbcPointer<BodyConsumer>::operator-> (this=<optimized out>)
at ../src/base/CbcPointer.h:178
c = <optimized out>
c = <optimized out>
#8 JobDialer<BodyConsumer>::dial (call=..., this=<optimized out>)
at base/AsyncJobCalls.h:182
__FUNCTION__ = <optimized out>
--Type <RET> for more, q to quit, c to continue without paging--
#9 AsyncCallT<BodyConsumerDialer>::fire (this=0x55fa4f965270)
at ../src/base/AsyncCall.h:145
No locals.
#10 0x000055fa293cfaab in AsyncCallQueue::fireNext (this=<optimized out>)
at base/../../src/base/RefCount.h:73
call = {p_ = 0x55fa4f965270}
__FUNCTION__ = <optimized out>
#11 0x000055fa293d189a in AsyncCallQueue::fire (this=0x55fa2b930a20)
at base/AsyncCallQueue.cc:43
made = true
#12 0x000055fa291ad500 in EventLoop::dispatchCalls (this=0x7ffcd7a21ef0)
at ./src/EventLoop.cc:144
dispatchedSome = <optimized out>
#13 EventLoop::runOnce (this=0x7ffcd7a21ef0) at ./src/EventLoop.cc:121
sawActivity = <optimized out>
waitingEngine = 0x7ffcd7a21e30
__FUNCTION__ = <optimized out>
#14 0x000055fa292b5f10 in EventLoop::run (this=0x7ffcd7a21ef0)
at ./src/EventLoop.cc:83
No locals.
#15 SquidMain (argc=<optimized out>, argv=<optimized out>)
at ./src/main.cc:1719
cmdLine = {argv_ = std::vector of length 6, capacity 6 = {
--Type <RET> for more, q to quit, c to continue without paging--
0x55fa29977220 "(squid-1)", 0x55fa299772e0 "--kid",
0x55fa299773a0 "squid-1", 0x55fa29977460 "--foreground",
0x55fa29977520 "-sYC", 0x0},
shortOptions_ = 0x55fa299a2450 "CDFNRSYXa:d:f:hk:m::n:sl:u:vz?",
longOptions_ = std::vector of length 5, capacity 8 = {{<option> = {
name = 0x55fa29977cc0 "foreground", has_arg = 0, flag = 0x0,
val = 2}, <No data fields>}, {<option> = {
name = 0x55fa299778e0 "kid", has_arg = 1, flag = 0x0,
val = 3}, <No data fields>}, {<option> = {
name = 0x55fa299779a0 "help", has_arg = 0, flag = 0x0,
val = 104}, <No data fields>}, {<option> = {
name = 0x55fa29977a80 "version", has_arg = 0, flag = 0x0,
val = 118}, <No data fields>}, {<option> = {name = 0x0,
has_arg = 0, flag = 0x0, val = 0}, <No data fields>}}}
WIN32_init_err = 0
mainLoop = {errcount = 0, static Running = 0x7ffcd7a21ef0,
last_loop = false, engines = std::vector of length 4, capacity 4 = {
0x7ffcd7a21e70, 0x55fa296e8fd0 <EventScheduler::_instance>,
0x7ffcd7a21e50, 0x7ffcd7a21e30}, timeService = 0x7ffcd7a21da8,
primaryEngine = 0x7ffcd7a21e30, loop_delay = 0, error = false,
runOnceResult = false}
signalEngine = {<AsyncEngine> = {
_vptr.AsyncEngine = 0x55fa296e1e50 <vtable for SignalEngine+16>}, <N--Type <RET> for more, q to quit, c to continue without paging--
o data fields>}
store_engine = {<AsyncEngine> = {
_vptr.AsyncEngine = 0x55fa296c8310 <vtable for StoreRootEngine+16>}, <No data fields>}
comm_engine = {<AsyncEngine> = {
_vptr.AsyncEngine = 0x55fa296e1e28 <vtable for CommSelectEngine+16>}, <No data fields>}
time_engine = {
_vptr.TimeEngine = 0x55fa296e2480 <vtable for TimeEngine+16>}
__FUNCTION__ = <optimized out>
#16 0x000055fa291524e6 in SquidMainSafe (argv=0x7ffcd7a22208, argc=5)
at ./src/main.cc:1406
__FUNCTION__ = <optimized out>
#17 main (argc=5, argv=0x7ffcd7a22208) at ./src/main.cc:1394
No locals.
(gdb)
Do you can see where the bug is?
best regards
Waldemar