From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D8238C25B78 for ; Mon, 13 May 2024 14:17:42 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s6WUQ-0000RQ-G9; Mon, 13 May 2024 10:17:18 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s6WUJ-0000P5-M8 for qemu-devel@nongnu.org; Mon, 13 May 2024 10:17:11 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s6WUI-0008LY-5N for qemu-devel@nongnu.org; Mon, 13 May 2024 10:17:11 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; 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= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-672-CT4f9gJ5PUSpc9T0vd13iw-1; Mon, 13 May 2024 10:17:05 -0400 X-MC-Unique: CT4f9gJ5PUSpc9T0vd13iw-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id BCD0638135E8; Mon, 13 May 2024 14:17:04 +0000 (UTC) Received: from blackfin.pond.sub.org (unknown [10.39.193.21]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 8B1CA2026D68; Mon, 13 May 2024 14:17:04 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 60D7221E5E74; Mon, 13 May 2024 16:17:03 +0200 (CEST) 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-type: text/plain Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.4 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org 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 --- 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 = base_page << TARGET_PAGE_BITS; uint64_t size = page_count << TARGET_PAGE_BITS; uint64_t len, l; + int eno; size_t total = 0; while (size) { @@ -65,9 +65,10 @@ static size_t write_run(uint64_t base_page, uint64_t page_count, } l = qemu_write_full(fd, buf, len); + eno = errno; cpu_physical_memory_unmap(buf, addr, false, len); if (l != len) { - error_setg(errp, QERR_IO_ERROR); + error_setg_errno(errp, eno, "win-dump: failed to save memory"); return 0; } @@ -459,7 +460,7 @@ void create_win_dump(DumpState *s, Error **errp) s->written_size = qemu_write_full(s->fd, h, hdr_size); if (s->written_size != hdr_size) { - error_setg(errp, QERR_IO_ERROR); + error_setg_errno(errp, errno, "win-dump: failed to write header"); goto out_restore; } -- 2.45.0