Bug 2119478

full backtrace:

(gdb) thread apply all bt full

Thread 1 (Thread 0x7f32ade35980 (LWP 2674422)):
#0  __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44
        tid = <optimized out>
        ret = 0
        pd = <optimized out>
        old_mask = {__val = {140733150215728, 140733150215712, 140733150211440, 140733150211424, 140733150216208, 93926439977233, 140733150211440, 0, 93926440068608, 93926951160992, 93926951163740, 547, 549, 0, 32, 139855655763501}}
        ret = <optimized out>
#1  0x00007f32adca1b63 in __pthread_kill_internal (signo=6, threadid=<optimized out>) at pthread_kill.c:78
No locals.
#2  0x00007f32adc552a6 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
        ret = <optimized out>
#3  0x00007f32adc287f3 in __GI_abort () at abort.c:79
        save_stage = 1
        act = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {93926440077111, 188, 93926440083056, 93926440035797, 1, 140733150211840, 0, 93926469603424, 140733150216112, 0, 4096, 93926951160992, 139855655780153, 93926784911776, 17179869342, 559903}}, sa_flags = 768, sa_restorer = 0x0}
        sigs = {__val = {32, 11938359503587600128, 4051041740889522176, 11938359503587600128, 93926951163496, 140733150211952, 140733150216208, 140733150216112, 4, 4096, 93926691188176, 139855640590895, 206158430248, 140733150211904, 140733150211712, 11938359503587600128}}
#4  0x0000556cf4000f18 in std::__replacement_assert (__file=<optimized out>, __line=<optimized out>, __function=<optimized out>, __condition=<optimized out>) at /usr/include/c++/11/x86_64-redhat-linux/bits/c++config.h:2660
No locals.
#5  0x0000556cf4060ae6 in std::array<unsigned char, 4096ul>::operator[] (this=<optimized out>, __n=<optimized out>) at /usr/include/c++/11/array:186
        __PRETTY_FUNCTION__ = <optimized out>
#6  std::array<unsigned char, 4096ul>::operator[] (__n=<optimized out>, this=0x7ffefd6d2f70) at /usr/include/c++/11/array:186
        __PRETTY_FUNCTION__ = <optimized out>
#7  aria2::GZipEncoder::encode[abi:cxx11](unsigned char const*, unsigned long, int) (this=0x7ffefd6d4010, in=<optimized out>, length=<optimized out>, flush=4) at /usr/src/debug/aria2-1.35.0-6.fc35.x86_64/src/GZipEncoder.cc:90
        ret = <optimized out>
        produced = <optimized out>
        out = ""
        outbuf = {_M_elems = "\345]m\217\033\267\256\376/\376\234\070\022%QR\276\065\067iz\200\336\066H\n\364\002IP\350\065\353\033\257\275\260\275m\016\212\376\367K\215=\273#g\355lf\374vq\266ͮmr4\363\220\022EJ\244\374\367h\022Gϟ\362'\243\377]\316g\213\233\060z>\202\061\033=\031-\322\362v\272\032=\177\377\367\310OVy\222\246\261\320@\305$\023\252 \224\310J\005\211,\310\020 \vo=7\322('\255\312<2D\037\320\005EW\b\t\034\270QZ[\351%*\021\205֚\263\250L\222\364\067\a\226\030\343\231\t\351@\030\310\\(\026\263\b\250 c0\022\\4*\240\244\066\263w:g\037u\246\227\345W\216\071k-\242\313"...}
#8  0x0000556cf4060b67 in aria2::GZipEncoder::str[abi:cxx11]() (this=0x7ffefd6d4010) at /usr/src/debug/aria2-1.35.0-6.fc35.x86_64/src/GZipEncoder.cc:100
No locals.
#9  0x0000556cf404a057 in aria2::rpc::toJson (res=..., callback="", gzip=<optimized out>) at /usr/src/debug/aria2-1.35.0-6.fc35.x86_64/src/RpcResponse.cc:188
        o = {strm_ = 0x556cf5db1060, internalBuf_ = "\037\213\b\000\000\000\000\000\000\003"}
#10 0x0000556cf4112e11 in aria2::HttpServerBodyCommand::sendJsonRpcResponse (this=0x556d03102dd0, res=..., callback="") at /usr/src/debug/aria2-1.35.0-6.fc35.x86_64/src/HttpServerBodyCommand.cc:108
        notauthorized = <optimized out>
--Type <RET> for more, q to quit, c to continue without paging--
        gzip = <optimized out>
        responseData = <error reading variable: Cannot create a lazy string with address 0x0, and a non-zero length.>
#11 0x0000556cf4116b40 in aria2::HttpServerBodyCommand::execute (this=0x556d03102dd0) at /usr/src/debug/aria2-1.35.0-6.fc35.x86_64/src/HttpServerBodyCommand.cc:287
        res = {param = std::unique_ptr<aria2::ValueBase> = {get() = 0x556d205b36f0}, id = std::unique_ptr<aria2::ValueBase> = {get() = 0x556d11f15ee0}, code = 0, authorized = aria2::rpc::RpcResponse::AUTHORIZED}
        callback = ""
        json = std::unique_ptr<aria2::ValueBase> = {get() = 0x556d006528c0}
        error = <optimized out>
        jsondict = <optimized out>
        reqPath = "/jsonrpc"
        query = ""
#12 0x0000556cf40a6b66 in aria2::(anonymous namespace)::executeCommand (commands=std::deque with 186 elements = {...}, statusFilter=aria2::Command::STATUS_ACTIVE) at /usr/src/debug/aria2-1.35.0-6.fc35.x86_64/src/DownloadEngine.cc:139
        com = std::unique_ptr<aria2::Command> = {get() = 0x556d03102dd0}
        i = 0
        max = 187
#13 0x0000556cf3ffbe21 in aria2::DownloadEngine::run (oneshot=<optimized out>, this=0x556cf56eeee0) at /usr/src/debug/aria2-1.35.0-6.fc35.x86_64/src/DownloadEngine.cc:183
        ghrf = <optimized out>
        ghrf = <optimized out>
#14 aria2::MultiUrlRequestInfo::execute (this=0x556cf56eee10) at /usr/src/debug/aria2-1.35.0-6.fc35.x86_64/src/MultiUrlRequestInfo.cc:361
        returnValue = <optimized out>
        returnValue = <optimized out>
        e = <optimized out>
        logger = <optimized out>
#15 aria2::main (argv=<optimized out>, argc=<optimized out>) at /usr/src/debug/aria2-1.35.0-6.fc35.x86_64/src/main.cc:78
        context = {reqinfo = std::shared_ptr<aria2::MultiUrlRequestInfo> (use count 1, weak count 0) = {get() = 0x556cf56eee10}}
        exitStatus = aria2::error_code::FINISHED
        context = <optimized out>
        exitStatus = <optimized out>
#16 main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/aria2-1.35.0-6.fc35.x86_64/src/main.cc:91
        platform = <optimized out>
        r = <optimized out>

Is this still reproducible with 1.36.0? this issue was reported against 1.35.0

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