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Lev Stipakov lstipakov

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lstipakov / gist:6539b054f39d99b5c20d230cdb25d6f2
Created June 23, 2020 12:04
[ 6963.950713] Modules linked in: tun ovpn_dco(OE) ip6_udp_tunnel udp_tunnel intel_rapl_msr intel_rapl_common nfit libnvdimm ppdev intel_rapl_perf parport_pc parport ena i2c_piix4 drm ip_tables xfs libcrc32c crct10dif_pclmul crc32_pclmul crc32c_intel nvme ghash_clmulni_intel nvme_core serio_raw
[ 6963.961016] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G OE 5.6.19-300.fc32.x86_64 #1
[ 6963.964528] Hardware name: Amazon EC2 c5.xlarge/, BIOS 1.0 10/16/2017
[ 6963.967157] RIP: 0010:ovpn_peer_release+0xc2/0xd0 [ovpn_dco]
[ 6963.969453] Code: 04 00 00 e8 80 58 40 c6 48 8b 45 00 48 8b 00 48 8b 80 c0 04 00 00 65 ff 08 48 89 ef 5d e9 36 a3 e1 c5 0f 0b eb 89 0f 0b eb a9 <0f> 0b eb c9 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 8d
[ 6963.976928] RSP: 0018:ffffb42200003ec0 EFLAGS: 00010286
[ 6963.979029] RAX: 0000000000000000 RBX: 000000000000000a RCX: 0000000080040002
[ 6963.981898] RDX: 0000000080040003 RSI: 0000000080040002 RDI: ffff9114ac9d6000
[ 6963.984762] RBP: ffff9114dd109800 R08: 00000000000000
@lstipakov
lstipakov / test
Created January 13, 2020 10:00
test
@lstipakov
lstipakov / gist:ff8ad16d83d47dd27af18893e29ca123
Created October 27, 2016 12:11
Clang undefined behavior
➜ ~ clang++ -fsanitize=address -fsanitize=undefined test.cc -v
Apple LLVM version 8.0.0 (clang-800.0.38)
Target: x86_64-apple-darwin15.5.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
"/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang" -cc1 -triple x86_64-apple-macosx10.11.0 -Wdeprecated-objc-isa-usage -Werror=deprecated-objc-isa-usage -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -discard-value-names -main-file-name test.cc -mrelocation-model pic -pic-level 2 -mthread-model posix -mdisable-fp-elim -masm-verbose -munwind-tables -target-cpu core2 -target-linker-version 274.1 -v -dwarf-column-info -debugger-tuning=lldb -resource-dir /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/8.0.0 -stdlib=libc++ -fdeprecated-macro -fdebug-compilation-dir /Users/admin -ferror-limit 19 -fmessage-length 272 -fsanitize=address,alignment,array-b
@lstipakov
lstipakov / gist:28338853fb5bcda42da41dda56cd2ffb
Created October 21, 2016 11:54
/bin/echo 123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234
@lstipakov
lstipakov / gist:37e05e284e36bc773b2b36e051e2c06e
Created October 21, 2016 11:51
/bin/echo 123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234
@lstipakov
lstipakov / pipe.c
Created July 20, 2016 17:20
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <string.h>
#define BUFSIZE 4096
int main(int argc, char const *argv[]) {
@lstipakov
lstipakov / clone.c
Last active July 20, 2016 16:25
#define _GNU_SOURCE
#include <sched.h>
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include <errno.h>
#include <stdlib.h>
#define STACK_SIZE 1024*1024
@lstipakov
lstipakov / ls.c
Created July 20, 2016 15:56
#include <stdio.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <dirent.h>
#include <fcntl.h>
#include <errno.h>
#include <memory.h>
#include <linux/limits.h>
#include <sys/wait.h>
@lstipakov
lstipakov / gist:b723ffd120f84b635dd00df50c8cccd5
Last active July 20, 2016 15:55
void processDir(const char* d) {
DIR* dir = NULL;
chdir(d);
dir = opendir("./");
/*
char newdir[PATH_MAX];
strcpy(newdir, "./");
strcat(newdir, d);