Package: strace Version: 5.10-1 Version: 6.1-0.1 Severity: normal Dear Maintainer,
When running this test program under strace, built with cc qwe.c -g -target arm-linux-gnueabi -o qwe -fuse-ld=lld (binary attached): -- >8 -- #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <unistd.h> int main() { int fd = open("/sys/class/leds/ACT/brightness", O_WRONLY); char dupa[] = {'0', '1'}; for(int q = 0;;++q) { ssize_t pwrite(int fd, const void *buf, size_t count, off_t offset); pwrite(fd, &dupa[q%2], 1, 0); sleep(1); } } -- >8 -- I observe -- >8 -- # strace /tmp/qwe execve("/tmp/qwe", ["/tmp/qwe"], 0xbeb5d800 /* 13 vars */) = 0 brk(NULL) = 0x1b29000 uname({sysname="Linux", nodename="ciastko-malinowe", ...}) = 0 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=10129, ...}) = 0 mmap2(NULL, 10129, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb6f54000 close(3) = 0 openat(AT_FDCWD, "/lib/arm-linux-gnueabi/libc.so.6", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\\y\1\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=1340264, ...}) = 0 mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb6f52000 mmap2(NULL, 1409596, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb6dcd000 mprotect(0xb6f11000, 61440, PROT_NONE) = 0 mmap2(0xb6f20000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x143000) = 0xb6f20000 mmap2(0xb6f23000, 8764, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb6f23000 close(3) = 0 set_tls(0xb6f52bf0) = 0 mprotect(0xb6f20000, 8192, PROT_READ) = 0 mprotect(0x4a0000, 4096, PROT_READ) = 0 mprotect(0xb6f57000, 4096, PROT_READ) = 0 munmap(0xb6f54000, 10129) = 0 openat(AT_FDCWD, "/sys/class/leds/ACT/brightness", O_WRONLY) = 3 pwrite64(3, "0", 1, 0) = 1 clock_nanosleep_time64(CLOCK_REALTIME, 0, {tv_sec=1, tv_nsec=20839490557837312}, 0xbea51638) = 0 pwrite64(3, "1", 1, 0) = 1 clock_nanosleep_time64(CLOCK_REALTIME, 0, {tv_sec=1, tv_nsec=20839490557837312}, 0xbea51638) = 0 pwrite64(3, "0", 1, 0) = 1 clock_nanosleep_time64(CLOCK_REALTIME, 0, {tv_sec=1, tv_nsec=20839490557837312}, 0xbea51638) = 0 pwrite64(3, "1", 1, 0) = 1 clock_nanosleep_time64(CLOCK_REALTIME, 0, {tv_sec=1, tv_nsec=20839490557837312}, 0xbea51638) = 0 pwrite64(3, "0", 1, 0) = 1 clock_nanosleep_time64(CLOCK_REALTIME, 0, {tv_sec=1, tv_nsec=20839490557837312}, 0xbea51638) = 0 ... -- >8 -- (the precise tv_nsec value changes, as does the pointer due to ASLR; I'm assuming those are related effects). Affects the official bullseye package and my sid (6.1-0.1) rebuild. -- System Information: Debian Release: 11.5 Architecture: armel Kernel: Linux 5.10.0-18-rpi (UP) Kernel taint flags: MOD_STAGING UNSIGNED Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages strace depends on: ii libc6 2.31-13+deb11u4 strace recommends no packages. strace suggests no packages. -- no debconf information
qwe.zst
Description: application/zstd
signature.asc
Description: PGP signature