https://bugs.kde.org/show_bug.cgi?id=449838
--- Comment #2 from Daniele <vbextr...@hotmail.com> --- isolate bug need time, but can try --trace-syscalls=yes LOG *** ==7498== Memcheck, a memory error detector ==7498== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. ==7498== Using Valgrind-3.18.1 and LibVEX; rerun with -h for copyright info ==7498== Command: ./nostd -i ==7498== SYSCALL[7498,1](12) sys_brk ( 0x0 ) --> [pre-success] Success(0x4032000) SYSCALL[7498,1](158) arch_prctl ( 12289, 1fff000540 ) --> [pre-fail] Failure(0x16) SYSCALL[7498,1](63) sys_newuname ( 0x1fff000130 )[sync] --> Success(0x0) SYSCALL[7498,1](257) sys_openat ( 4294967196, 0x40318e0(/usr/lib/valgrind/vgpreload_core-amd64-linux.so), 524288 ) --> [async] ... SYSCALL[7498,1](257) ... [async] --> Success(0x3) SYSCALL[7498,1](0) sys_read ( 3, 0x1ffeffed38, 832 ) --> [async] ... SYSCALL[7498,1](0) ... [async] --> Success(0x340) SYSCALL[7498,1](262) sys_newfstatat ( 3, 0x4026572(), 0x1ffeffebe0 )[sync] --> Success(0x0) SYSCALL[7498,1](9) sys_mmap ( 0x0, 16400, 1, 2050, 3, 0 ) --> [pre-success] Success(0x4832000) SYSCALL[7498,1](9) sys_mmap ( 0x4833000, 4096, 5, 2066, 3, 4096 ) --> [pre-success] Success(0x4833000) SYSCALL[7498,1](9) sys_mmap ( 0x4834000, 4096, 1, 2066, 3, 8192 ) --> [pre-success] Success(0x4834000) SYSCALL[7498,1](9) sys_mmap ( 0x4835000, 8192, 3, 2066, 3, 8192 ) --> [pre-success] Success(0x4835000) SYSCALL[7498,1](3) sys_close ( 3 )[sync] --> Success(0x0) SYSCALL[7498,1](257) sys_openat ( 4294967196, 0x4031e20(/usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so), 524288 ) --> [async] ... SYSCALL[7498,1](257) ... [async] --> Success(0x3) SYSCALL[7498,1](0) sys_read ( 3, 0x1ffeffed38, 832 ) --> [async] ... SYSCALL[7498,1](0) ... [async] --> Success(0x340) SYSCALL[7498,1](262) sys_newfstatat ( 3, 0x4026572(), 0x1ffeffebe0 )[sync] --> Success(0x0) SYSCALL[7498,1](9) sys_mmap ( 0x0, 8192, 3, 34, 4294967295, 0 ) --> [pre-success] Success(0x4837000) SYSCALL[7498,1](9) sys_mmap ( 0x0, 94528, 1, 2050, 3, 0 ) --> [pre-success] Success(0x4839000) SYSCALL[7498,1](10) sys_mprotect ( 0x483e000, 69632, 0 )[sync] --> Success(0x0) SYSCALL[7498,1](9) sys_mmap ( 0x483e000, 53248, 5, 2066, 3, 20480 ) --> [pre-success] Success(0x483e000) SYSCALL[7498,1](9) sys_mmap ( 0x484b000, 12288, 1, 2066, 3, 73728 ) --> [pre-success] Success(0x484b000) SYSCALL[7498,1](9) sys_mmap ( 0x484f000, 8192, 3, 2066, 3, 86016 ) --> [pre-success] Success(0x484f000) SYSCALL[7498,1](3) sys_close ( 3 )[sync] --> Success(0x0) SYSCALL[7498,1](21) sys_access ( 0x4029f20(/etc/ld.so.preload), 4 )[sync] --> Failure(0x2) SYSCALL[7498,1](257) sys_openat ( 4294967196, 0x4026d5b(/etc/ld.so.cache), 524288 ) --> [async] ... SYSCALL[7498,1](257) ... [async] --> Success(0x3) SYSCALL[7498,1](262) sys_newfstatat ( 3, 0x4026572(), 0x1ffefff730 )[sync] --> Success(0x0) SYSCALL[7498,1](9) sys_mmap ( 0x0, 143124, 1, 2, 3, 0 ) --> [pre-success] Success(0x4851000) SYSCALL[7498,1](3) sys_close ( 3 )[sync] --> Success(0x0) SYSCALL[7498,1](257) sys_openat ( 4294967196, 0x4837520(/usr/lib/libm.so.6), 524288 ) --> [async] ... SYSCALL[7498,1](257) ... [async] --> Success(0x3) SYSCALL[7498,1](0) sys_read ( 3, 0x1ffefff888, 832 ) --> [async] ... SYSCALL[7498,1](0) ... [async] --> Success(0x340) SYSCALL[7498,1](262) sys_newfstatat ( 3, 0x4026572(), 0x1ffefff730 )[sync] --> Success(0x0) SYSCALL[7498,1](9) sys_mmap ( 0x0, 1323032, 1, 2050, 3, 0 ) --> [pre-success] Success(0x4874000) SYSCALL[7498,1](10) sys_mprotect ( 0x4883000, 1257472, 0 )[sync] --> Success(0x0) SYSCALL[7498,1](9) sys_mmap ( 0x4883000, 630784, 5, 2066, 3, 61440 ) --> [pre-success] Success(0x4883000) SYSCALL[7498,1](9) sys_mmap ( 0x491d000, 622592, 1, 2066, 3, 692224 ) --> [pre-success] Success(0x491d000) SYSCALL[7498,1](9) sys_mmap ( 0x49b6000, 8192, 3, 2066, 3, 1314816 ) --> [pre-success] Success(0x49b6000) SYSCALL[7498,1](3) sys_close ( 3 )[sync] --> Success(0x0) SYSCALL[7498,1](257) sys_openat ( 4294967196, 0x4837a20(/usr/lib/librt.so.1), 524288 ) --> [async] ... SYSCALL[7498,1](257) ... [async] --> Success(0x3) SYSCALL[7498,1](0) sys_read ( 3, 0x1ffefff868, 832 ) --> [async] ... SYSCALL[7498,1](0) ... [async] --> Success(0x340) SYSCALL[7498,1](262) sys_newfstatat ( 3, 0x4026572(), 0x1ffefff710 )[sync] --> Success(0x0) SYSCALL[7498,1](9) sys_mmap ( 0x0, 43520, 1, 2050, 3, 0 ) --> [pre-success] Success(0x49b8000) SYSCALL[7498,1](9) sys_mmap ( 0x49bb000, 16384, 5, 2066, 3, 12288 ) --> [pre-success] Success(0x49bb000) SYSCALL[7498,1](9) sys_mmap ( 0x49bf000, 8192, 1, 2066, 3, 28672 ) --> [pre-success] Success(0x49bf000) SYSCALL[7498,1](9) sys_mmap ( 0x49c1000, 8192, 3, 2066, 3, 32768 ) --> [pre-success] Success(0x49c1000) SYSCALL[7498,1](3) sys_close ( 3 )[sync] --> Success(0x0) SYSCALL[7498,1](257) sys_openat ( 4294967196, 0x4837f20(/usr/lib/liburing.so.2), 524288 ) --> [async] ... SYSCALL[7498,1](257) ... [async] --> Success(0x3) SYSCALL[7498,1](0) sys_read ( 3, 0x1ffefff848, 832 ) --> [async] ... SYSCALL[7498,1](0) ... [async] --> Success(0x340) SYSCALL[7498,1](262) sys_newfstatat ( 3, 0x4026572(), 0x1ffefff6f0 )[sync] --> Success(0x0) SYSCALL[7498,1](9) sys_mmap ( 0x0, 24592, 1, 2050, 3, 0 ) --> [pre-success] Success(0x49c3000) SYSCALL[7498,1](9) sys_mmap ( 0x49c5000, 8192, 5, 2066, 3, 8192 ) --> [pre-success] Success(0x49c5000) SYSCALL[7498,1](9) sys_mmap ( 0x49c7000, 4096, 1, 2066, 3, 16384 ) --> [pre-success] Success(0x49c7000) SYSCALL[7498,1](9) sys_mmap ( 0x49c8000, 8192, 3, 2066, 3, 16384 ) --> [pre-success] Success(0x49c8000) SYSCALL[7498,1](3) sys_close ( 3 )[sync] --> Success(0x0) SYSCALL[7498,1](257) sys_openat ( 4294967196, 0x4838420(/usr/lib/libpthread.so.0), 524288 ) --> [async] ... SYSCALL[7498,1](257) ... [async] --> Success(0x3) SYSCALL[7498,1](0) sys_read ( 3, 0x1ffefff828, 832 ) --> [async] ... SYSCALL[7498,1](0) ... [async] --> Success(0x340) SYSCALL[7498,1](17) sys_pread64 ( 3, 0x1ffefff6f0, 80, 792 ) --> [async] ... SYSCALL[7498,1](17) ... [async] --> Success(0x50) SYSCALL[7498,1](17) sys_pread64 ( 3, 0x1ffefff6a0, 68, 872 ) --> [async] ... SYSCALL[7498,1](17) ... [async] --> Success(0x44) SYSCALL[7498,1](262) sys_newfstatat ( 3, 0x4026572(), 0x1ffefff6d0 )[sync] --> Success(0x0) SYSCALL[7498,1](9) sys_mmap ( 0x0, 131472, 1, 2050, 3, 0 ) --> [pre-success] Success(0x49ca000) SYSCALL[7498,1](10) sys_mprotect ( 0x49d1000, 81920, 0 )[sync] --> Success(0x0) SYSCALL[7498,1](9) sys_mmap ( 0x49d1000, 61440, 5, 2066, 3, 28672 ) --> [pre-success] Success(0x49d1000) SYSCALL[7498,1](9) sys_mmap ( 0x49e0000, 16384, 1, 2066, 3, 90112 ) --> [pre-success] Success(0x49e0000) SYSCALL[7498,1](9) sys_mmap ( 0x49e5000, 8192, 3, 2066, 3, 106496 ) --> [pre-success] Success(0x49e5000) SYSCALL[7498,1](9) sys_mmap ( 0x49e7000, 12688, 3, 50, 4294967295, 0 ) --> [pre-success] Success(0x49e7000) SYSCALL[7498,1](3) sys_close ( 3 )[sync] --> Success(0x0) SYSCALL[7498,1](257) sys_openat ( 4294967196, 0x4838920(/usr/lib/libc.so.6), 524288 ) --> [async] ... SYSCALL[7498,1](257) ... [async] --> Success(0x3) SYSCALL[7498,1](0) sys_read ( 3, 0x1ffefff808, 832 ) --> [async] ... SYSCALL[7498,1](0) ... [async] --> Success(0x340) SYSCALL[7498,1](17) sys_pread64 ( 3, 0x1ffefff410, 784, 64 ) --> [async] ... SYSCALL[7498,1](17) ... [async] --> Success(0x310) SYSCALL[7498,1](17) sys_pread64 ( 3, 0x1ffefff3b0, 80, 848 ) --> [async] ... SYSCALL[7498,1](17) ... [async] --> Success(0x50) SYSCALL[7498,1](17) sys_pread64 ( 3, 0x1ffefff360, 68, 928 ) --> [async] ... SYSCALL[7498,1](17) ... [async] --> Success(0x44) SYSCALL[7498,1](262) sys_newfstatat ( 3, 0x4026572(), 0x1ffefff6b0 )[sync] --> Success(0x0) SYSCALL[7498,1](17) sys_pread64 ( 3, 0x1ffefff300, 784, 64 ) --> [async] ... SYSCALL[7498,1](17) ... [async] --> Success(0x310) SYSCALL[7498,1](9) sys_mmap ( 0x0, 1880536, 1, 2050, 3, 0 ) --> [pre-success] Success(0x49eb000) SYSCALL[7498,1](9) sys_mmap ( 0x4a11000, 1355776, 5, 2066, 3, 155648 ) --> [pre-success] Success(0x4a11000) SYSCALL[7498,1](9) sys_mmap ( 0x4b5c000, 311296, 1, 2066, 3, 1511424 ) --> [pre-success] Success(0x4b5c000) SYSCALL[7498,1](9) sys_mmap ( 0x4ba8000, 24576, 3, 2066, 3, 1818624 ) --> [pre-success] Success(0x4ba8000) SYSCALL[7498,1](9) sys_mmap ( 0x4bae000, 33240, 3, 50, 4294967295, 0 ) --> [pre-success] Success(0x4bae000) SYSCALL[7498,1](3) sys_close ( 3 )[sync] --> Success(0x0) SYSCALL[7498,1](9) sys_mmap ( 0x0, 8192, 3, 34, 4294967295, 0 ) --> [pre-success] Success(0x4bb7000) SYSCALL[7498,1](9) sys_mmap ( 0x0, 12288, 3, 34, 4294967295, 0 ) --> [pre-success] Success(0x4bb9000) SYSCALL[7498,1](158) arch_prctl ( 4098, 4bb8800 ) --> [pre-success] Success(0x0) SYSCALL[7498,1](10) sys_mprotect ( 0x4ba8000, 12288, 1 )[sync] --> Success(0x0) SYSCALL[7498,1](10) sys_mprotect ( 0x49e5000, 4096, 1 )[sync] --> Success(0x0) SYSCALL[7498,1](10) sys_mprotect ( 0x49c8000, 4096, 1 )[sync] --> Success(0x0) SYSCALL[7498,1](10) sys_mprotect ( 0x49c1000, 4096, 1 )[sync] --> Success(0x0) SYSCALL[7498,1](10) sys_mprotect ( 0x49b6000, 4096, 1 )[sync] --> Success(0x0) SYSCALL[7498,1](10) sys_mprotect ( 0x484f000, 4096, 1 )[sync] --> Success(0x0) SYSCALL[7498,1](10) sys_mprotect ( 0x4835000, 4096, 1 )[sync] --> Success(0x0) SYSCALL[7498,1](10) sys_mprotect ( 0x12d000, 4096, 1 )[sync] --> Success(0x0) SYSCALL[7498,1](10) sys_mprotect ( 0x402e000, 8192, 1 )[sync] --> Success(0x0) SYSCALL[7498,1](11) sys_munmap ( 0x4851000, 143124 )[sync] --> Success(0x0) SYSCALL[7498,1](218) sys_set_tid_address ( 0x4bb8ad0 )[sync] --> Success(0x1d4a) SYSCALL[7498,1](273) sys_set_robust_list ( 0x4bb8ae0, 24 )[sync] --> Success(0x0) SYSCALL[7498,1](13) sys_rt_sigaction ( 32, 0x1fff000400, 0x0, 8 ) --> [pre-success] Success(0x0) SYSCALL[7498,1](13) sys_rt_sigaction ( 33, 0x1fff000400, 0x0, 8 ) --> [pre-success] Success(0x0) SYSCALL[7498,1](14) sys_rt_sigprocmask ( 1, 0x1fff000578, 0x0, 8 ) --> [pre-success] Success(0x0) SYSCALL[7498,1](302) sys_prlimit64 ( 0, 3, 0x0, 0x1fff000560 ) --> [pre-success] Success(0x0) SYSCALL[7498,1](9) sys_mmap ( 0x0, 12288, 7, 34, 4294967295, 0 ) --> [pre-success] Success(0x4851000) SYSCALL[7498,1](425) sys_io_uring_setup ( 0x1000, 137422177456 )[sync] --> Success(0x3) --7498-- VALGRIND INTERNAL ERROR: Valgrind received a signal 11 (SIGSEGV) - exiting --7498-- si_code=1; Faulting address: 0x1000; sp: 0x1002c8dc38 valgrind: the 'impossible' happened: Killed by fatal signal host stacktrace: ==7498== at 0x58040C66: ??? (in /usr/lib/valgrind/memcheck-amd64-linux) ==7498== by 0x5804EA90: ??? (in /usr/lib/valgrind/memcheck-amd64-linux) ==7498== by 0x5809EEFB: ??? (in /usr/lib/valgrind/memcheck-amd64-linux) ==7498== by 0x58117E09: ??? (in /usr/lib/valgrind/memcheck-amd64-linux) ==7498== by 0x5809CF3A: ??? (in /usr/lib/valgrind/memcheck-amd64-linux) ==7498== by 0x5809D5CD: ??? (in /usr/lib/valgrind/memcheck-amd64-linux) ==7498== by 0x58098E02: ??? (in /usr/lib/valgrind/memcheck-amd64-linux) ==7498== by 0x5809AEE7: ??? (in /usr/lib/valgrind/memcheck-amd64-linux) ==7498== by 0x580E40F0: ??? (in /usr/lib/valgrind/memcheck-amd64-linux) sched status: running_tid=1 Thread 1: status = VgTs_Runnable syscall 425 (lwpid 7498) ==7498== at 0x4AE418D: syscall (in /usr/lib/libc-2.33.so) ==7498== by 0x49C5EA5: ??? (in /usr/lib/liburing.so.2.1.0) ==7498== by 0x49C5478: io_uring_queue_init_params (in /usr/lib/liburing.so.2.1.0) ==7498== by 0x49C5528: io_uring_queue_init (in /usr/lib/liburing.so.2.1.0) ==7498== by 0x1233C7: deadpoll_new (deadpoll.c:122) ==7498== by 0x10B723: f_begin (file.c:200) ==7498== by 0x124BAC: __libc_csu_init (in /home/vbextreme/Project/c/notstd/build/nostd) ==7498== by 0x4A12AB0: (below main) (in /usr/lib/libc-2.33.so) client stack range: [0x1FFEFFE000 0x1FFF000FFF] client SP: 0x1FFF000468 valgrind stack range: [0x1002B8E000 0x1002C8DFFF] top usage: 8656 of 1048576 Note: see also the FAQ in the source distribution. It contains workarounds to several common problems. In particular, if Valgrind aborted or crashed after identifying problems in your program, there's a good chance that fixing those problems will prevent Valgrind aborting or crashing, especially if it happened in m_mallocfree.c. If that doesn't help, please report this bug to: www.valgrind.org In the bug report, send all the above text, the valgrind version, and what OS and version you are using. Thanks. -- You are receiving this mail because: You are watching all bug changes.
