From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53556) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YRQ49-000362-3h for qemu-devel@nongnu.org; Fri, 27 Feb 2015 13:55:17 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YRQ47-0006z2-La for qemu-devel@nongnu.org; Fri, 27 Feb 2015 13:55:12 -0500 Message-ID: <54F0BD84.2060606@redhat.com> Date: Fri, 27 Feb 2015 13:55:00 -0500 From: Max Reitz MIME-Version: 1.0 References: <1425045947-9271-1-git-send-email-mreitz@redhat.com> <20150227165723.GB32542@stefanha-thinkpad.redhat.com> <54F0A86E.7000608@weilnetz.de> <54F0A957.5090906@redhat.com> <54F0B26E.2020000@weilnetz.de> <54F0B2E5.9020800@redhat.com> <54F0B38C.80908@weilnetz.de> <54F0B449.1050106@redhat.com> In-Reply-To: <54F0B449.1050106@redhat.com> Content-Type: multipart/mixed; boundary="------------010809080603010604000709" Subject: Re: [Qemu-devel] [PATCH v2] block/vdi: Add locking for parallel requests List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Stefan Weil , Stefan Hajnoczi Cc: Kevin Wolf , Paolo Bonzini , qemu-devel@nongnu.org, qemu-block@nongnu.org, qemu-stable@nongnu.org This is a multi-part message in MIME format. --------------010809080603010604000709 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit On 2015-02-27 at 13:15, Max Reitz wrote: > On 2015-02-27 at 13:12, Stefan Weil wrote: >> Am 27.02.2015 um 19:09 schrieb Max Reitz: >>> It always fails for me. Do you have an SSD? >> On the real machine: yes. On the virtual machine: maybe. > > I don't, so maybe that's the issue. But running it in tmpfs doesn't > change anything for me, still fails (every time). And now it doesn't fail any more on my HDD (but still in tmpfs). Great. How about this test case (which is in line with what Paolo identified is the potential problem)? :-) Max --------------010809080603010604000709 Content-Type: application/x-ruby; name="test.rb" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="test.rb" IyEvdXNyL2Jpbi9lbnYgcnVieQoKZm10ID0gJ3ZkaScKc2l6ZSA9IDY0CmRpdiA9IDE2Cgpz eXN0ZW0oIi4vcWVtdS1pbWcgY3JlYXRlIC1mICN7Zm10fSB0ZXN0LiN7Zm10fSAje3NpemV9 TSIpCnN5c3RlbSgiLi9xZW11LWltZyBjcmVhdGUgLWYgcmF3IHRlc3QucmF3ICN7c2l6ZX1N IikKCmNtZCA9ICcuL3FlbXUtaW8gLWYgcmF3JwoKMC51cHRvKHNpemUgKiBkaXYgLSAxKS5l YWNoIGRvIHxpfAogICAgY21kICs9ICIgLWMgJ2Fpb193cml0ZSAtUCAje2kgJSAyNTZ9ICN7 aSAqIDEwMjQgLyBkaXZ9SyAjezEwMjQgLyBkaXZ9SyciCmVuZAoKY21kICs9ICIgYmxrdmVy aWZ5OnRlc3QucmF3OnRlc3QuI3tmbXR9IgoKc3lzdGVtKGNtZCkKCgpwdXRzCnB1dHMgJy0t LSByZWFkIHJhdyAtLS0nCnB1dHMKCgpjbWQgPSAnLi9xZW11LWlvIC1mIHJhdycKCjAudXB0 byhzaXplICogZGl2IC0gMSkuZWFjaCBkbyB8aXwKICAgIGNtZCArPSAiIC1jICdyZWFkIC1Q ICN7aSAlIDI1Nn0gI3tpICogMTAyNCAvIGRpdn1LICN7MTAyNCAvIGRpdn1LJyIKZW5kCgpj bWQgKz0gJyB0ZXN0LnJhdycKCnN5c3RlbShjbWQpCgoKcHV0cwpwdXRzICItLS0gcmVhZCAj e2ZtdH0gLS0tIgpwdXRzCgoKY21kID0gIi4vcWVtdS1pbyAtZiAje2ZtdH0iCgowLnVwdG8o c2l6ZSAqIGRpdiAtIDEpLmVhY2ggZG8gfGl8CiAgICBjbWQgKz0gIiAtYyAncmVhZCAtUCAj e2kgJSAyNTZ9ICN7aSAqIDEwMjQgLyBkaXZ9SyAjezEwMjQgLyBkaXZ9SyciCmVuZAoKY21k ICs9ICIgdGVzdC4je2ZtdH0iCgpzeXN0ZW0oY21kKQo= --------------010809080603010604000709--