Thank you! пт, 18 янв. 2019 г. в 19:36, Peter Maydell <peter.mayd...@linaro.org>: > > Commit now in QEMU master as 2bd3f8998e1e7dcd9afc29fab25. This will be > in the next release: QEMU 4.0. > > > ** Changed in: qemu > Status: In Progress => Fix Committed > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1810433 > > Title: > aarch64-linux-user master: inconsistent pwrite behaviour > > Status in QEMU: > Fix Committed > > Bug description: > Hello, > > I am running aarch64-linux-user from master, commit > 20d6c7312f1b812bb9c750f4087f69ac8485cc90 > > And I've found the following inconsistent emulation of pwrite() call when > buf==NULL and len=0. > Minimal reproducible sample is the following: > > #define _GNU_SOURCE > #include <stdlib.h> > #include <stdio.h> > #include <unistd.h> > #include <sys/types.h> > #include <sys/stat.h> > #include <fcntl.h> > #include <string.h> > > /* > System | Result > -------------------------+---------------- > Native x86_64 4.12.14 | pwrite ret = 0 > Native aarch64 4.4.159 | pwrite ret = 0 > qemu-aarch64 at x86_64 | pwrite ret = -1 > ( 20d6c7312f1b8 ) | > */ > > int main(int argc, char** argv) { > int fd = open("test.dat", O_CREAT | O_RDWR, 0644); > if (fd < 0) { > perror("open"); > return 1; > } > > int ret = fallocate(fd, 0, 0, 1000); > if (ret < 0) { > perror("fallocate"); > return 1; > } > > ssize_t ret_pwrite = pwrite(fd, NULL, 0, 0); > printf("pwrite ret = %ld\n", ret_pwrite); > > close(fd); > > return 0; > } > > > Please note, that the same binary executable prints different output at > native aarch64 platform and under aarch64-linux-user > > To manage notifications about this bug go to: > https://bugs.launchpad.net/qemu/+bug/1810433/+subscriptions
-- With best regards, Matwey V. Kornilov -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1810433 Title: aarch64-linux-user master: inconsistent pwrite behaviour Status in QEMU: Fix Committed Bug description: Hello, I am running aarch64-linux-user from master, commit 20d6c7312f1b812bb9c750f4087f69ac8485cc90 And I've found the following inconsistent emulation of pwrite() call when buf==NULL and len=0. Minimal reproducible sample is the following: #define _GNU_SOURCE #include <stdlib.h> #include <stdio.h> #include <unistd.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <string.h> /* System | Result -------------------------+---------------- Native x86_64 4.12.14 | pwrite ret = 0 Native aarch64 4.4.159 | pwrite ret = 0 qemu-aarch64 at x86_64 | pwrite ret = -1 ( 20d6c7312f1b8 ) | */ int main(int argc, char** argv) { int fd = open("test.dat", O_CREAT | O_RDWR, 0644); if (fd < 0) { perror("open"); return 1; } int ret = fallocate(fd, 0, 0, 1000); if (ret < 0) { perror("fallocate"); return 1; } ssize_t ret_pwrite = pwrite(fd, NULL, 0, 0); printf("pwrite ret = %ld\n", ret_pwrite); close(fd); return 0; } Please note, that the same binary executable prints different output at native aarch64 platform and under aarch64-linux-user To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1810433/+subscriptions
