The branch stable/13 has been updated by emaste: URL: https://cgit.FreeBSD.org/src/commit/?id=fbc0c2a21b761f676050e8769ef6ea498c0ac579
commit fbc0c2a21b761f676050e8769ef6ea498c0ac579 Author: Ed Maste <[email protected]> AuthorDate: 2022-03-10 18:04:34 +0000 Commit: Ed Maste <[email protected]> CommitDate: 2022-04-10 23:12:30 +0000 dumpon: proceed without compression if the kernel lacks support PR: 252554 Reviewed by: markj MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D34520 (cherry picked from commit 2b20327ec9394754c0bac2d83567b972a08e3930) --- sbin/dumpon/dumpon.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/sbin/dumpon/dumpon.c b/sbin/dumpon/dumpon.c index 2b710a611af3..e7f1d06ea666 100644 --- a/sbin/dumpon/dumpon.c +++ b/sbin/dumpon/dumpon.c @@ -572,6 +572,15 @@ main(int argc, char *argv[]) error = ioctl(fd, DIOCSKERNELDUMP, kdap); if (error != 0) error = errno; + if (error == EINVAL && (gzip || zstd)) { + /* Retry without compression in case kernel lacks support. */ + kdap->kda_compression = KERNELDUMP_COMP_NONE; + error = ioctl(fd, DIOCSKERNELDUMP, kdap); + if (error == 0) + warnx("Compression disabled; kernel may lack gzip or zstd support."); + else + error = errno; + } explicit_bzero(kdap->kda_encryptedkey, kdap->kda_encryptedkeysize); free(kdap->kda_encryptedkey); explicit_bzero(kdap, sizeof(*kdap));
