From d319e05d6f24350272e7f600a43d0c0091924512 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 17 Oct 2018 10:26:33 +0200 Subject: [PATCH] pc: Fix machine property nvdimm-persistence error handling MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Calling error_report() in a function that takes an Error ** argument is suspicious. pc.c's pc_machine_set_nvdimm_persistence() does that, and then exit()s. Wrong. Attempting to set machine property nvdimm-persistence to a bad value instantly kills the VM: $ qemu-system-x86_64 -nodefaults -S -display none -qmp stdio {"QMP": {"version": {"qemu": {"micro": 50, "minor": 0, "major": 3}, "package": "v3.0.0-837-gc5e4e49258"}, "capabilities": []}} {"execute": "qmp_capabilities"} {"return": {}} {"execute": "qom-set", "arguments": {"path": "/machine", "property": "nvdimm-persistence", "value": "instadeath"}} -machine nvdimm-persistence=instadeath: unsupported option $ echo $? 1 Broken when commit 11c39b5cd96 (v3.0.0) replaced error_propagate(); return by error_report(); exit() instead of error_setg(); return. Fix that. Fixes: 11c39b5cd966ddc067a1ca0c5392ec9b666c45b7 Cc: "Michael S. Tsirkin" Signed-off-by: Markus Armbruster Reviewed-by: Marc-André Lureau Message-Id: <20181017082702.5581-10-armbru@redhat.com> --- hw/i386/pc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/hw/i386/pc.c b/hw/i386/pc.c index cd5029c149..eab8572f2a 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -2209,8 +2209,9 @@ static void pc_machine_set_nvdimm_persistence(Object *obj, const char *value, else if (strcmp(value, "mem-ctrl") == 0) nvdimm_state->persistence = 2; else { - error_report("-machine nvdimm-persistence=%s: unsupported option", value); - exit(EXIT_FAILURE); + error_setg(errp, "-machine nvdimm-persistence=%s: unsupported option", + value); + return; } g_free(nvdimm_state->persistence_string); -- 2.11.4.GIT