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Re: [libmicrohttpd] CI Pipeline fails (address sanitizer issue)


From: Christian Grothoff
Subject: Re: [libmicrohttpd] CI Pipeline fails (address sanitizer issue)
Date: Sun, 13 Oct 2019 17:53:30 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0

Dear Tim,

Thanks for reporting.

Unless I'm badly mistaken, e3179550..b24cb240 should fix this (bug in
the test case, hence no urgency to re-release anything). Please let me
know if this does _not_ fix the problem.

Happy hacking!

Christian

On 10/13/19 3:10 PM, Tim Rühsen wrote:
> Is this wanted / expected behavior in 'test_upgrade_large' ? If yes, we
> can set ASAN_OPTIONS=allocator_may_return_null=1 when running the tests.
> 
> #######
> Warning: Zero size, specified for thread pool size, is ignored. Thread
> pool is not used.
> Using debug build of libmicrohttpd.
> Warning: Zero size, specified for thread pool size, is ignored. Thread
> pool is not used.
> Using debug build of libmicrohttpd.
> ==9087==WARNING: AddressSanitizer failed to allocate 0x617000000200 bytes
> ==9087==AddressSanitizer's allocator is terminating the process instead
> of returning 0
> ==9087==If you don't like this behavior set allocator_may_return_null=1
> ==9087==AddressSanitizer CHECK failed:
> /build/llvm-toolchain-3.8-pxYbFx/llvm-toolchain-3.8-3.8.1/projects/compiler-rt/lib/sanitizer_common/sanitizer_allocator.cc:147
> "((0)) != (0)" (0x0, 0x0)
>     #0 0x4c377d in __asan::AsanCheckFailed(char const*, int, char
> const*, unsigned long long, unsigned long long)
> (/builds/libmicrohttpd/libmicrohttpd/src/microhttpd/.libs/test_upgrade_large+0x4c377d)
>     #1 0x4ca113 in __sanitizer::CheckFailed(char const*, int, char
> const*, unsigned long long, unsigned long long)
> (/builds/libmicrohttpd/libmicrohttpd/src/microhttpd/.libs/test_upgrade_large+0x4ca113)
>     #2 0x4c7f26 in __sanitizer::ReportAllocatorCannotReturnNull()
> (/builds/libmicrohttpd/libmicrohttpd/src/microhttpd/.libs/test_upgrade_large+0x4c7f26)
>     #3 0x421344 in __asan::asan_malloc(unsigned long,
> __sanitizer::BufferedStackTrace*)
> (/builds/libmicrohttpd/libmicrohttpd/src/microhttpd/.libs/test_upgrade_large+0x421344)
>     #4 0x4ba195 in malloc
> (/builds/libmicrohttpd/libmicrohttpd/src/microhttpd/.libs/test_upgrade_large+0x4ba195)
>     #5 0x7fe70410b163 in MHD_pool_create
> /builds/libmicrohttpd/libmicrohttpd/src/microhttpd/memorypool.c:183:20
>     #6 0x7fe704095a07 in internal_add_connection
> /builds/libmicrohttpd/libmicrohttpd/src/microhttpd/daemon.c:2485:22
>     #7 0x7fe7040f8012 in MHD_accept_connection
> /builds/libmicrohttpd/libmicrohttpd/src/microhttpd/daemon.c:3273:10
>     #8 0x7fe7040a4122 in MHD_epoll
> /builds/libmicrohttpd/libmicrohttpd/src/microhttpd/daemon.c:4484:39
>     #9 0x7fe7040b5dcc in MHD_run
> /builds/libmicrohttpd/libmicrohttpd/src/microhttpd/daemon.c:4635:7
>     #10 0x4f5c29 in run_mhd_epoll_loop
> /builds/libmicrohttpd/libmicrohttpd/src/microhttpd/test_upgrade_large.c:1013:7
>     #11 0x4f0e89 in run_mhd_loop
> /builds/libmicrohttpd/libmicrohttpd/src/microhttpd/test_upgrade_large.c:1039:5
>     #12 0x4eda15 in test_upgrade
> /builds/libmicrohttpd/libmicrohttpd/src/microhttpd/test_upgrade_large.c:1159:7
>     #13 0x4eb8ed in main
> /builds/libmicrohttpd/libmicrohttpd/src/microhttpd/test_upgrade_large.c:1249:9
>     #14 0x7fe702d372e0 in __libc_start_main
> (/lib/x86_64-linux-gnu/libc.so.6+0x202e0)
>     #15 0x41bbf9 in _start
> (/builds/libmicrohttpd/libmicrohttpd/src/microhttpd/.libs/test_upgrade_large+0x41bbf9)
> 
> FAIL test_upgrade_large (exit status: 1)
> #######
> 
> See
> https://gitlab.com/libmicrohttpd/libmicrohttpd/-/jobs/319336629/artifacts/file/src/microhttpd/test_upgrade_large.log
> 
> Regards, Tim
> 

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