From ff4c9194599fff94164e0ffa4b5da968973d0523 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Thu, 28 Sep 2023 15:20:18 +0200 Subject: [PATCH] migration/rdma: Use error_report() & friends instead of stderr error_report() obeys -msg, reports the current error location if any, and reports to the current monitor if any. Reporting to stderr directly with fprintf() or perror() is wrong, because it loses all this. Fix the offenders. Bonus: resolves a FIXME about problematic use of errno. Signed-off-by: Markus Armbruster Reviewed-by: Juan Quintela Signed-off-by: Juan Quintela Message-ID: <20230928132019.2544702-53-armbru@redhat.com> --- migration/rdma.c | 44 +++++++++++++++++++++----------------------- 1 file changed, 21 insertions(+), 23 deletions(-) diff --git a/migration/rdma.c b/migration/rdma.c index 9d5b3b76eb..ab2ea85c45 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -877,12 +877,12 @@ static int qemu_rdma_broken_ipv6_kernel(struct ibv_context *verbs, Error **errp) if (roce_found) { if (ib_found) { - fprintf(stderr, "WARN: migrations may fail:" - " IPv6 over RoCE / iWARP in linux" - " is broken. But since you appear to have a" - " mixed RoCE / IB environment, be sure to only" - " migrate over the IB fabric until the kernel " - " fixes the bug.\n"); + warn_report("migrations may fail:" + " IPv6 over RoCE / iWARP in linux" + " is broken. But since you appear to have a" + " mixed RoCE / IB environment, be sure to only" + " migrate over the IB fabric until the kernel " + " fixes the bug."); } else { error_setg(errp, "RDMA ERROR: " "You only have RoCE / iWARP devices in your systems" @@ -1418,12 +1418,8 @@ static int qemu_rdma_unregister_waiting(RDMAContext *rdma) block->remote_keys[chunk] = 0; if (ret != 0) { - /* - * FIXME perror() is problematic, bcause ibv_dereg_mr() is - * not documented to set errno. Will go away later in - * this series. - */ - perror("unregistration chunk failed"); + error_report("unregistration chunk failed: %s", + strerror(ret)); return -1; } rdma->total_registrations--; @@ -3772,7 +3768,8 @@ static int qemu_rdma_registration_handle(QEMUFile *f) block->pmr[reg->key.chunk] = NULL; if (ret != 0) { - perror("rdma unregistration chunk failed"); + error_report("rdma unregistration chunk failed: %s", + strerror(errno)); goto err; } @@ -3961,10 +3958,10 @@ static int qemu_rdma_registration_stop(QEMUFile *f, */ if (local->nb_blocks != nb_dest_blocks) { - fprintf(stderr, "ram blocks mismatch (Number of blocks %d vs %d) " - "Your QEMU command line parameters are probably " - "not identical on both the source and destination.", - local->nb_blocks, nb_dest_blocks); + error_report("ram blocks mismatch (Number of blocks %d vs %d)", + local->nb_blocks, nb_dest_blocks); + error_printf("Your QEMU command line parameters are probably " + "not identical on both the source and destination."); rdma->errored = true; return -1; } @@ -3977,10 +3974,11 @@ static int qemu_rdma_registration_stop(QEMUFile *f, /* We require that the blocks are in the same order */ if (rdma->dest_blocks[i].length != local->block[i].length) { - fprintf(stderr, "Block %s/%d has a different length %" PRIu64 - "vs %" PRIu64, local->block[i].block_name, i, - local->block[i].length, - rdma->dest_blocks[i].length); + error_report("Block %s/%d has a different length %" PRIu64 + "vs %" PRIu64, + local->block[i].block_name, i, + local->block[i].length, + rdma->dest_blocks[i].length); rdma->errored = true; return -1; } @@ -4096,7 +4094,7 @@ static void rdma_accept_incoming_migration(void *opaque) ret = qemu_rdma_accept(rdma); if (ret < 0) { - fprintf(stderr, "RDMA ERROR: Migration initialization failed\n"); + error_report("RDMA ERROR: Migration initialization failed"); return; } @@ -4108,7 +4106,7 @@ static void rdma_accept_incoming_migration(void *opaque) f = rdma_new_input(rdma); if (f == NULL) { - fprintf(stderr, "RDMA ERROR: could not open RDMA for input\n"); + error_report("RDMA ERROR: could not open RDMA for input"); qemu_rdma_cleanup(rdma); return; } -- 2.11.4.GIT