From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [IPv6:2a01:7e0:0:424::9]) by lore.proxmox.com (Postfix) with ESMTPS id 8BD6F1FF15C for ; Fri, 17 Oct 2025 16:46:51 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id CBD03695C; Fri, 17 Oct 2025 16:47:10 +0200 (CEST) Message-ID: Date: Fri, 17 Oct 2025 16:46:36 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: Proxmox VE development discussion , Daniel Kral References: <20251014143946.160679-1-f.ebner@proxmox.com> <20251014143946.160679-15-f.ebner@proxmox.com> Content-Language: en-US From: Fiona Ebner In-Reply-To: X-Bm-Milter-Handled: 55990f41-d878-4baa-be0a-ee34c49e34d2 X-Bm-Transport-Timestamp: 1760712393190 X-SPAM-LEVEL: Spam detection results: 0 AWL -0.021 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment RCVD_IN_VALIDITY_CERTIFIED_BLOCKED 0.001 ADMINISTRATOR NOTICE: The query to Validity was blocked. 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[helpers.pm] Subject: Re: [pve-devel] [PATCH qemu-server 14/16] introduce QSD module for qemu-storage-daemon functionality X-BeenThere: pve-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Proxmox VE development discussion Cc: pve-devel Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: pve-devel-bounces@lists.proxmox.com Sender: "pve-devel" Am 17.10.25 um 3:08 PM schrieb Daniel Kral: > On Tue Oct 14, 2025 at 4:39 PM CEST, Fiona Ebner wrote: >> diff --git a/src/PVE/QemuServer/Helpers.pm b/src/PVE/QemuServer/Helpers.pm >> index 2c78a7b4..ab8aa389 100644 >> --- a/src/PVE/QemuServer/Helpers.pm >> +++ b/src/PVE/QemuServer/Helpers.pm >> @@ -89,6 +89,24 @@ sub qsd_pidfile_name { >> return "${var_run_tmpdir}/qsd-${vmid}.pid"; >> } >> >> +sub qsd_fuse_export_cleanup_files { >> + my ($vmid) = @_; >> + >> + PVE::Tools::dir_glob_foreach( >> + $var_run_tmpdir, >> + "qsd-${vmid}-.*.fuse", >> + sub { >> + my ($file) = @_; >> + unlink "${var_run_tmpdir}/${file}"; > > This could fail if the exported fuse fs wasn't cleaned up by qsd > correctly, see more below. > >> + }, >> + ); >> +} >> + >> +sub qsd_fuse_export_path { >> + my ($vmid, $export_name) = @_; >> + return "${var_run_tmpdir}/qsd-${vmid}-${export_name}.fuse"; >> +} >> + > > --- [ snip ] --- > >> +=head3 quit >> + >> + PVE::QemuServer::QSD::quit($vmid); >> + >> +Shut down the QEMU storage daemon associated to VM C<$vmid> and cleans up its PID file and socket. >> +Waits for 60 seconds for clean shutdown, then sends SIGTERM and waits an additional 10 seconds >> +before sending SIGKILL. >> + >> +=cut >> + >> +sub quit($vmid) { >> + eval { PVE::QemuServer::Monitor::qsd_cmd($vmid, 'quit'); }; >> + my $qmp_err = $@; >> + warn "QEMU storage daemon for $vmid failed to handle 'quit' - $qmp_err" if $qmp_err; >> + >> + my $count = $qmp_err ? 60 : 0; # can't wait for QMP 'quit' to terminate the process if it failed >> + my $pid = PVE::QemuServer::Helpers::qsd_running_locally($vmid); >> + while ($pid) { >> + if ($count == 60) { >> + warn "QEMU storage daemon for $vmid still running with PID $pid" >> + . " - terminating now with SIGTERM\n"; >> + kill 15, $pid; >> + } elsif ($count == 70) { >> + warn "QEMU storage daemon for $vmid still running with PID $pid" >> + . " - terminating now with SIGKILL\n"; >> + kill 9, $pid; >> + last; > > SIGKILL will leave the exported fuse export in an unremovable state > since the qsd couldn't clean it up. I could only reproduce this by doing > it manually with `kill -SIGKILL ...`, which resulted in the VM not being > startable anymore. > > Might be worth to add an `umount /run/qemu-server/qsd-....fuse` if > unlink fails or if we can stat -f that the file is still the > FUSE-exported image? Good catch! Yeah, I think trying an unmount is a good approach. _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel