From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-pa0-f53.google.com ([209.85.220.53]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Ug2Qi-0002EE-Rs for kexec@lists.infradead.org; Sat, 25 May 2013 00:33:53 +0000 Received: by mail-pa0-f53.google.com with SMTP id kq12so4890307pab.12 for ; Fri, 24 May 2013 17:33:29 -0700 (PDT) Message-ID: <51A006CF.90105@gmail.com> Date: Sat, 25 May 2013 08:33:19 +0800 From: Zhang Yanfei MIME-Version: 1.0 Subject: Re: [PATCH 0/2] kdump/mmap: Fix mmap of /proc/vmcore for s390 References: <1369400889-11064-1-git-send-email-holzheu@linux.vnet.ibm.com> <20130524143644.GD18218@redhat.com> <20130524170626.2ac06efe@holzheu> <20130524152849.GF18218@redhat.com> <87mwrkatgu.fsf@xmission.com> In-Reply-To: <87mwrkatgu.fsf@xmission.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "kexec" Errors-To: kexec-bounces+dwmw2=twosheds.infradead.org@lists.infradead.org To: "Eric W. Biederman" Cc: kexec@lists.infradead.org, Heiko Carstens , Jan Willeke , linux-kernel@vger.kernel.org, HATAYAMA Daisuke , Martin Schwidefsky , Andrew Morton , Michael Holzheu , Vivek Goyal SGVsbG8gRXJpYywKCuS6jiAyMDEz5bm0MDXmnIgyNeaXpSAwNjo0NCwgRXJpYyBXLiBCaWVkZXJt YW4g5YaZ6YGTOgo+IFZpdmVrIEdveWFsIDx2Z295YWxAcmVkaGF0LmNvbT4gd3JpdGVzOgo+IAo+ PiBPbiBGcmksIE1heSAyNCwgMjAxMyBhdCAwNTowNjoyNlBNICswMjAwLCBNaWNoYWVsIEhvbHpo ZXUgd3JvdGU6Cj4+PiBIZWxsbyBWaXZlaywKPj4+Cj4+PiBPbiBGcmksIDI0IE1heSAyMDEzIDEw OjM2OjQ0IC0wNDAwCj4+PiBWaXZlayBHb3lhbCA8dmdveWFsQHJlZGhhdC5jb20+IHdyb3RlOgo+ Pj4KPj4+IFtzbmlwXQo+Pj4KPj4+PiBTb3JyeSwgSSBkb24ndCB1bmRlcnN0YW5kIHRoZSBwcm9i bGVtLiBJZiB3ZSBzd2FwcGVkIGxvdyBtZW1vcnkgYW5kCj4+Pj4gY3Jhc2ggcmVzZXJ2ZWQgbWVt b3J5LCB0aGF0IHNob3VsZCBoYXZlIGJlZW4gdGFrZW4gY2FyZSBieSBwcmVwYXJlZAo+Pj4+IEVM RiBoZWFkZXJzIHNvIHRoYXQgd2UgbWFwIHRoZSByaWdodCBwZm5zLiBJbiB4ODYgd2Ugc3dhcCA2 NDBLIG9mIGxvdwo+Pj4+IG1lbW9yeSB3aXRoIDY0MEsgb2YgbWVtb3J5IGluIHJlc2VydmVkIGFu ZCB3ZSB0YWtlIGNhcmUgb2YgdGhpcyBieQo+Pj4+IHByZXBhcmluZyBlbGYgaGVhZGVycyBhY2Nv cmRpbmdseS4KPj4+Pgo+Pj4+IFNvIHdoeSBzMzkwIGNhbid0IGRvIHRoZSBzYW1lIHRoaW5nPwo+ Pj4KPj4+IEkgYW0gbm90IHN1cmUgaWYgSSB1bmRlcnN0YW5kIHRoaXMuIEN1cnJlbnRseSB3ZSBj cmVhdGUgdGhlIEVMRgo+Pj4gaGVhZGVyIGluIGEgd2F5IHRoYXQgd2UgaGF2ZSB2aXJ0dWFsPXJl YWwuIEluIHRoZSBjb3B5X29sZG1lbV9wYWdlKCkgd2UKPj4+IGRvIHRoZSBzd2FwIHNvIHRoYXQg Zm9yIHRoZSAvcHJvYy92bWNvcmUgY29kZSBpdCBsb29rcyBsaWtlIGNvbnRpZ3VvdXMKPj4+IG5v bi1zd2FwcGVkIG1lbW9yeS4KPj4+Cj4+PiBPbmUgcmVhc29uIHdoeSBJIHRob3VnaHQgdGhpcyB3 YXMgbmVjZXNzYXJ5IHdhcyB0aGF0IC9kZXYvb2xkbWVtCj4+PiBhbHNvIHVzZXMgdGhlIGZ1bmN0 aW9uIGFuZCBpdCBzaG91bGQgcHJvdmlkZSBsaW5lYXIgbWVtb3J5IGFjY2VzcyBsaWtlCj4+PiBp dCBpcyBvbiB0aGUgbGl2ZSBzeXN0ZW0gd2l0aCAvZGV2L21lbS4KPj4+Cj4+PiBJcyB0aGF0IGlt cGxlbWVudGF0aW9uIGluY29ycmVjdD8KPj4KPj4gWyBDQyBBbmRyZXcuIEtlZXAgaGltIGluIGxv b3AgZm9yIGFsbCBrZXJuZWwga2R1bXAgcGF0Y2hlcyBhcyBhbGwga2R1bXAKPj4gICBwYXRjaGVz IGFyZSByb3V0ZWQgdGhyb3VnaCBoaW0gXS4KPj4KPj4gWyBDQyBFcmljIEJpZWRlcm1hbiBdCj4+ Cj4+IExvb2tpbmcgYXQgdGhlIGNvZGUsIGxvb2tzIGxpa2UgL2Rldi9vbGRtZW0gaXMgYnJva2Vu LiBJdCBkb2VzIG5vdCBrbm93Cj4+IGFueXRoaW5nIGFib3V0IHN3YXAgb2YgYW55IG9mIHRoZSBt ZW1vcnkgYXJlYXMgYW5kIGl0IHdpbGwgc2ltcGx5Cj4+IHJldHVybiB0aGUgY29udGVudHMgb2Yg cGFnZSBmcmFtZSBhc2tlZC4gQW5kIHRoaXMgaGFzIGJlZW4gbGlrZSB0aGlzCj4+IHNpbmNlIHRo ZSBiZWdpbm5pbmcuCj4+Cj4+IEkgaGF2ZSBhbHdheXMgcXVlc3Rpb25lZCB0aGUgdXRpbGl0eSBv ZiAvZGV2L29sZG1lbS4gQXRsZWFzdCBJIGFtIG5vdAo+PiBhd2FyZSBvZiBhbnkgdG9vbCBtYWtp bmcgdXNlIG9mIGl0Lgo+Pgo+PiBJZiB3ZSB3YW50IHRvIGZpeCBpdCwgdGhlbiBzb21lYm93IGFs bCB0aGUgc3dhcHBlZCBtZW1vcnkgcmVnaW9uIGluZm8KPj4gbmVlZHMgdG8gYmUgY29tbXVuaWNh dGVkIHRvIHNlY29uZCBrZXJuZWwgc28gdGhhdCByZWFkX29sZG1lbSgpIGNhbgo+PiBkbyB0aGUg bWFwcGluZyBjb3JyZWN0bHkgYW5kIHdlIHJlYWxseSBkb24ndCBoYXZlIGFueSBtZWNoYW5pc20g Zm9yCj4+IHRoYXQuIChJIGFtIGFzc3VtaW5nIHRoYXQgaW4gczM5MCB5b3UgbXVzdCBoYXZlIGhh cmRjb2RlZCB0aGUgcmVnaW9ucwo+PiBvZiBtZW1vcnkgd2hpY2ggYXJlIGFsd2F5cyBzd2FwcGVk KS4KPj4KPj4gQXMgL3Byb2Mvdm1jb3JlIGlzIHRoZSBtb3N0IHVzZWQgYW5kIHVzZWZ1bCBpbnRl cmZhY2UsIEkgcHJlZmVyIHRoYXQKPj4gd2Ugc3dhcCBtZW1vcnkgYW5kIHB1dCB0aGF0IGluZm8g aW4gZWxmIGhlYWRlcnMuIEZvciAvZGV2L29sZG1lLCBJCj4+IGRvbid0IG1pbmQgaWYgd2UgbGVh dmUgaXQgYXMgaXQgaXMuIElmIHNvbWVib2R5IHJlYWxseSBjYXJlcywgdGhlbgo+PiBJIGd1ZXNz IHdlIG5lZWQgdG8gd3JpdGUgYSBuZXcgY29tbWFuZCBsaW5lIG9wdGlvbiB3aGljaCAvZGV2L21l bQo+PiBjYW4gcGFyc2UgYW5kIHdoaWNoIHRlbGxzIGl0IGFib3V0IHN3YXBzIHNvIHRoYXQgL2Rl di9vbGRtZW0gY2FuCj4+IG1hcCB0aGluZ3MgY29ycmVjdGx5LiAoVGhpcyBpcyBiZXR0ZXIgdGhh biBoYXJkY29kaW5nIHRoaW5ncykuCj4+Cj4+IEVyaWMsIGRvIHlvdSBoYXZlIGFueSB0aG91Z2h0 cyBvbiB0aGlzLgo+IAo+IEkgZG9uJ3QgdGhpbmsgYW55b25lIGFjdHVhbGx5IHVzZXMgL2Rldi9v bGRtZW0uICBJIHdvdWxkIGxpa2UgdG8gY2l0ZQo+IHRoZSBzMzkwIGNvbmZ1c2lvbiBhcyBwcm9v ZiBidXQgSSBkb24ndCB0aGluayB0aGF0IHF1aXRlIHdvcmtzLgo+IAo+IEkgdGhpbmsgdGhlIHNv bHV0aW9uIGlzIGZvciBzb21lb25lIHRvIHNlbmQgYSBwYXRjaCByZW1vdmluZyAvZGV2L29sZG1l bQo+IGFzIGFuIHVudXNlZCBwaWVjZSBvZiBjb2RlLiAgVGhhdCB3aWxsIGFsc28gbW92ZSB1cyBp biB0aGUgZGlyZWN0aW9uIG9mCj4gcmVzb2x2aW5nIEhQQXMgY29uY2VybnMuCgpJIHRoaW5rIEkg Y2FuIHRyeSB0aGlzLgoKPiAKPiBUaGUgZnVuY3Rpb24gY29weV9vbGRtZW1fcGFnZSBhbHNvIGNv bmNlcm5zIG1lLiAgSSBkb24ndCBoYXZlIGEgY2x1ZSB3aHkKPiB3ZSBkdXBsaWNhdGUgdGhhdCBm dW5jdGlvbiBvbiBldmVyeSBhcmNoaXRlY3V0cmUgaW4gYSBzbGlnaHRseSBkaWZmZXJlbnQKPiBm b3JtLiAgVGhlcmUgc2hvdWxkIGJlIGVub3VnaCBhYnN0cmFjdGlvbnMgaW4gdGhlIGtlcm5lbCB0 byBtYWtlIHRoYXQKPiB1bm5lY2Vzc2FyeS4gIEkgd291bGQgYmUgZ2xhZCB0byBzZWUgdGhhdCBm dW5jdGlvbiBnbywgYW5kIHJlbW92ZSB0aGUKPiBwb3NzaWJpbGl0eSBvZiBjb25mdXNpb24gdGhh dCBoYXBwZW5lZCBvbiBzMzkwLgoKWW91IG1lYW4gd2Ugc2hvdWxkIGhhdmUgYSBjb21tb24gY29w eV9vbGRtZW1fcGFnZSBmb3IgYWxsIGFyY2hpdGVjdHVyZXM/IEFuZApqdXN0IGxpa2Ugdml2ZWsg c2FpZCBhYm92ZSwgZm9yIHMzOTAsIHdlIHNob3VsZCBwdXQgdGhlIHN3YXAgaW5mbyBpbiB0aGUg ZWxmCmhlYWRlcnMgaW5zdGVhZCBvZiBkb2luZyB0aGF0IGluIGNvcHlfb2xkbWVtX3BhZ2UuCgpa aGFuZwoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18Ka2V4 ZWMgbWFpbGluZyBsaXN0CmtleGVjQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmlu ZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9rZXhlYwo=