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selftests/coredump: ignore ENOSPC errors 

If we crash multiple processes at the same time we may run out of space.
Just ignore those errors. They're not actually all that relevant for the
test.

Link: https://patch.msgid.link/20251028-work-coredump-signal-v1-20-ca449b7b7aa0@kernel.org
Reviewed-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christian Brauner 2025-10-28 09:46:05 +01:00
parent 408a0ed9ee
commit 32ae33f796
No known key found for this signature in database
GPG Key ID: 91C61BC06578DCA2
3 changed files with 9 additions and 2 deletions
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4
tools/testing/selftests/coredump/coredump_socket_protocol_test.c
View File

@ -184,6 +184,8 @@ TEST_F(coredump, socket_request_kernel)
bytes_write = write(fd_core_file, buffer, bytes_read); bytes_write = write(fd_core_file, buffer, bytes_read);
if (bytes_read != bytes_write) { if (bytes_read != bytes_write) {
if (bytes_write < 0 && errno == ENOSPC)
continue;
fprintf(stderr, "socket_request_kernel: write to core file failed (read=%zd, write=%zd): %m\n", fprintf(stderr, "socket_request_kernel: write to core file failed (read=%zd, write=%zd): %m\n",
bytes_read, bytes_write); bytes_read, bytes_write);
goto out; goto out;
@ -1366,6 +1368,8 @@ TEST_F_TIMEOUT(coredump, socket_multiple_crashing_coredumps, 500)
bytes_write = write(fd_core_file, buffer, bytes_read); bytes_write = write(fd_core_file, buffer, bytes_read);
if (bytes_read != bytes_write) { if (bytes_read != bytes_write) {
if (bytes_write < 0 && errno == ENOSPC)
continue;
fprintf(stderr, "write failed for fd %d: %m\n", fd_core_file); fprintf(stderr, "write failed for fd %d: %m\n", fd_core_file);
goto out; goto out;
} }

5
tools/testing/selftests/coredump/coredump_socket_test.c
View File

@ -158,8 +158,9 @@ TEST_F(coredump, socket)
bytes_write = write(fd_core_file, buffer, bytes_read); bytes_write = write(fd_core_file, buffer, bytes_read);
if (bytes_read != bytes_write) { if (bytes_read != bytes_write) {
fprintf(stderr, "socket test: write to core file failed (read=%zd, write=%zd): %m\n", if (bytes_write < 0 && errno == ENOSPC)
bytes_read, bytes_write); continue;
fprintf(stderr, "socket test: write to core file failed (read=%zd, write=%zd): %m\n", bytes_read, bytes_write);
goto out; goto out;
} }
} }

2
tools/testing/selftests/coredump/coredump_test_helpers.c
View File

@ -357,6 +357,8 @@ void process_coredump_worker(int fd_coredump, int fd_peer_pidfd, int fd_core_fil
goto done; goto done;
ssize_t bytes_write = write(fd_core_file, buffer, bytes_read); ssize_t bytes_write = write(fd_core_file, buffer, bytes_read);
if (bytes_write != bytes_read) { if (bytes_write != bytes_read) {
if (bytes_write < 0 && errno == ENOSPC)
continue;
fprintf(stderr, "Worker: write() failed (read=%zd, write=%zd): %m\n", fprintf(stderr, "Worker: write() failed (read=%zd, write=%zd): %m\n",
bytes_read, bytes_write); bytes_read, bytes_write);
goto out; goto out;