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s=mimecast20190719; t=1715609829; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=e/P6nXRNKAFpl4GM3C8TWAUCNwPAWckBeOmIyTNegYM=; b=RF/0V/6EBgRLqDQICsU+mxRX3YZQ0gglsz9wC7/FWvkwvYTp4Vsnv0zkYJZemsw36knCRj 1vqUC7GTvdzdSiLlqSohMSMkHrDzwSIn4rhhFHMo++Q4MlHmxRIM4K7hCfc0zg08vJRiU0 dQQqwdL0MmcLYoKW6wR8PDh6kST5grk= X-MC-Unique: CT4f9gJ5PUSpc9T0vd13iw-1 From: Markus Armbruster To: qemu-devel@nongnu.org Cc: philmd@linaro.org, fam@euphon.net, kwolf@redhat.com, hreitz@redhat.com, marcandre.lureau@redhat.com, peterx@redhat.com, farosas@suse.de, pbonzini@redhat.com, richard.henderson@linaro.org, qemu-block@nongnu.org Subject: [PATCH 2/6] dump/win_dump: Improve error messages on write error Date: Mon, 13 May 2024 16:16:59 +0200 Message-ID: <20240513141703.549874-3-armbru@redhat.com> In-Reply-To: <20240513141703.549874-1-armbru@redhat.com> References: <20240513141703.549874-1-armbru@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.4 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.974, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1715609864652100003 Content-Type: text/plain; charset="utf-8" create_win_dump() and write_run report qemu_write_full() failure to their callers as An IO error has occurred The errno set by qemu_write_full() is lost. Improve this to win-dump: failed to write header: and win-dump: failed to save memory: This matches how dump.c reports similar errors. Signed-off-by: Markus Armbruster Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- dump/win_dump.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/dump/win_dump.c b/dump/win_dump.c index b7bfaff379..0e4fe692ce 100644 --- a/dump/win_dump.c +++ b/dump/win_dump.c @@ -12,7 +12,6 @@ #include "sysemu/dump.h" #include "qapi/error.h" #include "qemu/error-report.h" -#include "qapi/qmp/qerror.h" #include "exec/cpu-defs.h" #include "hw/core/cpu.h" #include "qemu/win_dump_defs.h" @@ -52,6 +51,7 @@ static size_t write_run(uint64_t base_page, uint64_t page= _count, uint64_t addr =3D base_page << TARGET_PAGE_BITS; uint64_t size =3D page_count << TARGET_PAGE_BITS; uint64_t len, l; + int eno; size_t total =3D 0; =20 while (size) { @@ -65,9 +65,10 @@ static size_t write_run(uint64_t base_page, uint64_t pag= e_count, } =20 l =3D qemu_write_full(fd, buf, len); + eno =3D errno; cpu_physical_memory_unmap(buf, addr, false, len); if (l !=3D len) { - error_setg(errp, QERR_IO_ERROR); + error_setg_errno(errp, eno, "win-dump: failed to save memory"); return 0; } =20 @@ -459,7 +460,7 @@ void create_win_dump(DumpState *s, Error **errp) =20 s->written_size =3D qemu_write_full(s->fd, h, hdr_size); if (s->written_size !=3D hdr_size) { - error_setg(errp, QERR_IO_ERROR); + error_setg_errno(errp, errno, "win-dump: failed to write header"); goto out_restore; } =20 --=20 2.45.0