From mboxrd@z Thu Jan 1 00:00:00 1970 From: Juergen Gross Subject: Re: [PATCH v2] xenbus: Avoid deadlock during suspend due to open transactions Date: Mon, 27 May 2019 07:11:29 +0200 Message-ID: <60d4d497-184f-c2ae-857a-46c906f05e22@suse.com> References: <20190513135635.22406-1-ross.lagerwall@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1hV7v7-0006Dp-Sh for xen-devel@lists.xenproject.org; Mon, 27 May 2019 05:11:37 +0000 In-Reply-To: <20190513135635.22406-1-ross.lagerwall@citrix.com> Content-Language: de-DE List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Ross Lagerwall , xen-devel@lists.xenproject.org Cc: Boris Ostrovsky List-Id: xen-devel@lists.xenproject.org T24gMTMvMDUvMjAxOSAxNTo1NiwgUm9zcyBMYWdlcndhbGwgd3JvdGU6Cj4gRHVyaW5nIGEgc3Vz cGVuZC9yZXN1bWUsIHRoZSB4ZW53YXRjaCB0aHJlYWQgd2FpdHMgZm9yIGFsbCBvdXRzdGFuZGlu Zwo+IHhlbnN0b3JlIHJlcXVlc3RzIGFuZCB0cmFuc2FjdGlvbnMgdG8gY29tcGxldGUuIFRoaXMg ZG9lcyBub3Qgd29yawo+IGNvcnJlY3RseSBmb3IgdHJhbnNhY3Rpb25zIHN0YXJ0ZWQgYnkgdXNl cnNwYWNlIGJlY2F1c2UgaXQgd2FpdHMgZm9yCj4gdGhlbSB0byBjb21wbGV0ZSBhZnRlciBmcmVl emluZyB1c2Vyc3BhY2UgdGhyZWFkcyB3aGljaCBtZWFucyB0aGUKPiB0cmFuc2FjdGlvbnMgaGF2 ZSBubyB3YXkgb2YgY29tcGxldGluZywgcmVzdWx0aW5nIGluIGEgZGVhZGxvY2suIFRoaXMgaXMK PiB0cml2aWFsIHRvIHJlcHJvZHVjZSBieSBydW5uaW5nIHRoaXMgc2NyaXB0IGFuZCB0aGVuIHN1 c3BlbmRpbmcgdGhlIFZNOgo+IAo+ICAgICBpbXBvcnQgcHl4cywgdGltZQo+ICAgICBjID0gcHl4 cy5jbGllbnQuQ2xpZW50KHhlbl9idXNfcGF0aD0iL2Rldi94ZW4veGVuYnVzIikKPiAgICAgYy5j b25uZWN0KCkKPiAgICAgYy50cmFuc2FjdGlvbigpCj4gICAgIHRpbWUuc2xlZXAoMzYwMCkKPiAK PiBFdmVuIGlmIHRoaXMgZGVhZGxvY2sgd2VyZSByZXNvbHZlZCwgbWlzYmVoYXZpbmcgdXNlcnNw YWNlIHNob3VsZCBub3QKPiBwcmV2ZW50IGEgVk0gZnJvbSBiZWluZyBtaWdyYXRlZC4gU28sIGlu c3RlYWQgb2Ygd2FpdGluZyBmb3IgdGhlc2UKPiB0cmFuc2FjdGlvbnMgdG8gY29tcGxldGUgYmVm b3JlIHN1c3BlbmRpbmcsIHN0b3JlIHRoZSBjdXJyZW50IGdlbmVyYXRpb24KPiBpZCBmb3IgZWFj aCB0cmFuc2FjdGlvbiB3aGVuIGl0IGlzIHN0YXJ0ZWQuIFRoZSBnbG9iYWwgZ2VuZXJhdGlvbiBp ZCBpcwo+IGluY3JlbWVudGVkIGR1cmluZyByZXN1bWUuIElmIHRoZSBjYWxsZXIgY29tbWl0cyB0 aGUgdHJhbnNhY3Rpb24gYW5kIHRoZQo+IGdlbmVyYXRpb24gaWQgZG9lcyBub3QgbWF0Y2ggdGhl IGN1cnJlbnQgZ2VuZXJhdGlvbiBpZCwgcmV0dXJuIEVBR0FJTiBzbwo+IHRoYXQgdGhleSB0cnkg YWdhaW4uIElmIHRoZSB0cmFuc2FjdGlvbiB3YXMgaW5zdGVhZCBkaXNjYXJkZWQsIHJldHVybiBP Swo+IHNpbmNlIG5vIGNoYW5nZXMgd2VyZSBtYWRlIGFueXdheS4KPiAKPiBUaGlzIG9ubHkgYWZm ZWN0cyB1c2VycyBvZiB0aGUgeGVuYnVzIGZpbGUgaW50ZXJmYWNlLiBJbi1rZXJuZWwgdXNlcnMg b2YKPiB4ZW5idXMgYXJlIGFzc3VtZWQgdG8gYmUgd2VsbC1iZWhhdmVkIGFuZCBjb21wbGV0ZSBh bGwgdHJhbnNhY3Rpb25zCj4gYmVmb3JlIGZyZWV6aW5nLgo+IAo+IFNpZ25lZC1vZmYtYnk6IFJv c3MgTGFnZXJ3YWxsIDxyb3NzLmxhZ2Vyd2FsbEBjaXRyaXguY29tPgoKUmV2aWV3ZWQtYnk6IEp1 ZXJnZW4gR3Jvc3MgPGpncm9zc0BzdXNlLmNvbT4KCgpKdWVyZ2VuCgpfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhl bi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3Jn L21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs 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 X-Spam-Level: X-Spam-Status: No, score=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8E31FC07542 for ; 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Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <20190513135635.22406-1-ross.lagerwall@citrix.com> Content-Language: de-DE Subject: Re: [Xen-devel] [PATCH v2] xenbus: Avoid deadlock during suspend due to open transactions X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Boris Ostrovsky Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" Message-ID: <20190527051129.oOdZuTxop1UsLnNtV9VfSc7C1_g02CglmcUzqPyKLf0@z> T24gMTMvMDUvMjAxOSAxNTo1NiwgUm9zcyBMYWdlcndhbGwgd3JvdGU6Cj4gRHVyaW5nIGEgc3Vz cGVuZC9yZXN1bWUsIHRoZSB4ZW53YXRjaCB0aHJlYWQgd2FpdHMgZm9yIGFsbCBvdXRzdGFuZGlu Zwo+IHhlbnN0b3JlIHJlcXVlc3RzIGFuZCB0cmFuc2FjdGlvbnMgdG8gY29tcGxldGUuIFRoaXMg ZG9lcyBub3Qgd29yawo+IGNvcnJlY3RseSBmb3IgdHJhbnNhY3Rpb25zIHN0YXJ0ZWQgYnkgdXNl cnNwYWNlIGJlY2F1c2UgaXQgd2FpdHMgZm9yCj4gdGhlbSB0byBjb21wbGV0ZSBhZnRlciBmcmVl emluZyB1c2Vyc3BhY2UgdGhyZWFkcyB3aGljaCBtZWFucyB0aGUKPiB0cmFuc2FjdGlvbnMgaGF2 ZSBubyB3YXkgb2YgY29tcGxldGluZywgcmVzdWx0aW5nIGluIGEgZGVhZGxvY2suIFRoaXMgaXMK PiB0cml2aWFsIHRvIHJlcHJvZHVjZSBieSBydW5uaW5nIHRoaXMgc2NyaXB0IGFuZCB0aGVuIHN1 c3BlbmRpbmcgdGhlIFZNOgo+IAo+ICAgICBpbXBvcnQgcHl4cywgdGltZQo+ICAgICBjID0gcHl4 cy5jbGllbnQuQ2xpZW50KHhlbl9idXNfcGF0aD0iL2Rldi94ZW4veGVuYnVzIikKPiAgICAgYy5j b25uZWN0KCkKPiAgICAgYy50cmFuc2FjdGlvbigpCj4gICAgIHRpbWUuc2xlZXAoMzYwMCkKPiAK PiBFdmVuIGlmIHRoaXMgZGVhZGxvY2sgd2VyZSByZXNvbHZlZCwgbWlzYmVoYXZpbmcgdXNlcnNw YWNlIHNob3VsZCBub3QKPiBwcmV2ZW50IGEgVk0gZnJvbSBiZWluZyBtaWdyYXRlZC4gU28sIGlu c3RlYWQgb2Ygd2FpdGluZyBmb3IgdGhlc2UKPiB0cmFuc2FjdGlvbnMgdG8gY29tcGxldGUgYmVm b3JlIHN1c3BlbmRpbmcsIHN0b3JlIHRoZSBjdXJyZW50IGdlbmVyYXRpb24KPiBpZCBmb3IgZWFj aCB0cmFuc2FjdGlvbiB3aGVuIGl0IGlzIHN0YXJ0ZWQuIFRoZSBnbG9iYWwgZ2VuZXJhdGlvbiBp ZCBpcwo+IGluY3JlbWVudGVkIGR1cmluZyByZXN1bWUuIElmIHRoZSBjYWxsZXIgY29tbWl0cyB0 aGUgdHJhbnNhY3Rpb24gYW5kIHRoZQo+IGdlbmVyYXRpb24gaWQgZG9lcyBub3QgbWF0Y2ggdGhl IGN1cnJlbnQgZ2VuZXJhdGlvbiBpZCwgcmV0dXJuIEVBR0FJTiBzbwo+IHRoYXQgdGhleSB0cnkg YWdhaW4uIElmIHRoZSB0cmFuc2FjdGlvbiB3YXMgaW5zdGVhZCBkaXNjYXJkZWQsIHJldHVybiBP Swo+IHNpbmNlIG5vIGNoYW5nZXMgd2VyZSBtYWRlIGFueXdheS4KPiAKPiBUaGlzIG9ubHkgYWZm ZWN0cyB1c2VycyBvZiB0aGUgeGVuYnVzIGZpbGUgaW50ZXJmYWNlLiBJbi1rZXJuZWwgdXNlcnMg b2YKPiB4ZW5idXMgYXJlIGFzc3VtZWQgdG8gYmUgd2VsbC1iZWhhdmVkIGFuZCBjb21wbGV0ZSBh bGwgdHJhbnNhY3Rpb25zCj4gYmVmb3JlIGZyZWV6aW5nLgo+IAo+IFNpZ25lZC1vZmYtYnk6IFJv c3MgTGFnZXJ3YWxsIDxyb3NzLmxhZ2Vyd2FsbEBjaXRyaXguY29tPgoKUmV2aWV3ZWQtYnk6IEp1 ZXJnZW4gR3Jvc3MgPGpncm9zc0BzdXNlLmNvbT4KCgpKdWVyZ2VuCgpfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhl bi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3Jn L21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs