From mboxrd@z Thu Jan 1 00:00:00 1970 From: Olaf Hering Date: Fri, 30 Jan 2004 12:59:35 +0000 Subject: Re: removable media revalidation - udev vs. devfs or static /dev Message-Id: <20040130125935.GA17969@suse.de> List-Id: References: <200401012333.04930.arvidjaar@mail.ru> <20040103133749.A3393@pclin040.win.tue.nl> <20040103124216.GA31006@suse.de> <200401031905.31806.arvidjaar@mail.ru> <20040103175414.GX5523@suse.de> <20040107094321.GC21059@suse.de> <20040107095029.GX3483@suse.de> <20040107095632.GA22213@suse.de> <20040107095922.GY3483@suse.de> In-Reply-To: <20040107095922.GY3483@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset="macroman" Content-Transfer-Encoding: base64 To: Jens Axboe Cc: Andrey Borzenkov , Andries Brouwer , Greg KH , linux-hotplug-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org IE9uIFdlZCwgSmFuIDA3LCBKZW5zIEF4Ym9lIHdyb3RlOgoKPiBPbiBXZWQsIEphbiAwNyAyMDA0 LCBPbGFmIEhlcmluZyB3cm90ZToKPiA+ICBPbiBXZWQsIEphbiAwNywgSmVucyBBeGJvZSB3cm90 ZToKPiA+IAo+ID4gPiBObyBuZWVkIHRvIHB1dCBpdCBpbiB0aGUga2VybmVsLCB1c2VyIHNwYWNl IGZpdHMgdGhlIGJpbCBuaWNlbHkuIEkgZG9uJ3QKPiA+ID4gc2VlIGhvdyB0aGlzIHdvdWxkIGxl YWQgdG8gSU8gZXJyb3JzPwo+ID4gCj4gPiBPaywgaG93IHNob3VsZCBpdCBiZSBkb25lIG9uIG15 IFNDU0kgYW5kIHBhcmFsbGVsIHBvcnQgWklQPyBBbiBBVEFQSSBaSVAKPiA+IHdpdGggMi40IGJl aGF2ZXMgbGlrZSB0aGF0Ogo+ID4gCj4gPiAKPiA+IG5lY3RhcmluZTp+ICMgYmxvY2tkZXYgLS1y ZXJlYWRwdCAvZGV2L2hkZAo+ID4gL2Rldi9oZGQ6IEVpbmdhYmUtL0F1c2dhYmVmZWhsZXIKPiA+ IG5lY3RhcmluZTp+ICMgZG1lc2cgfCB0YWlsCj4gPiBuZnM6IHNlcnZlciBIaWxiZXJ0MiBPSwo+ ID4gbmZzOiBzZXJ2ZXIgSGlsYmVydDMgbm90IHJlc3BvbmRpbmcsIHN0aWxsIHRyeWluZwo+ID4g bmZzOiBzZXJ2ZXIgSGlsYmVydDMgT0sKPiA+IG5mczogc2VydmVyIEhpbGJlcnQzIG5vdCByZXNw b25kaW5nLCBzdGlsbCB0cnlpbmcKPiA+IG5mczogc2VydmVyIEhpbGJlcnQzIE9LCj4gPiBuZnM6 IHNlcnZlciBIaWxiZXJ0MiBub3QgcmVzcG9uZGluZywgc3RpbGwgdHJ5aW5nCj4gPiBuZnM6IHNl cnZlciBIaWxiZXJ0MiBPSwo+ID4gaWRlLWZsb3BweTogaGRkOiBJL08gZXJyb3IsIHBjID0gIDAs IGtleSA9ICAyLCBhc2MgPSAzYSwgYXNjcSA9ICAwCj4gPiBpZGUtZmxvcHB5OiBoZGQ6IEkvTyBl cnJvciwgcGMgPSAxYiwga2V5ID0gIDIsIGFzYyA9IDNhLCBhc2NxID0gIDAKPiA+IGhkZDogTm8g ZGlzayBpbiBkcml2ZQo+ID4gbmVjdGFyaW5lOn4gIyBjYXQgL3Byb2MvaWRlL2hkZC9tb2RlbCAK PiA+IElPTUVHQSBaSVAgMTAwIEFUQVBJCj4gCj4gVHdvIHByb2JsZW1zIGhlcmUuIEZpcnN0LCBp ZGUtZmxvcHB5IHNob3VsZCBub3QgdmVyYm9zZWx5IGZhaWwgdGhlc2UKPiBjb21tYW5kcyAoMi8z YS8wMCBpcyAnbWVkaXVtIG5vdCBwcmVzZW50JykuIFNlY29uZCwgeW91IGFyZSBub3QgdXNpbmcK PiB0aGUgcHJvcGVyIG1lY2hhbmlzbSB0byBkZXRlY3QgbWVkaWEgZXZlbnRzLgoKMi42LjItbW0y IHByaW50cyBzdGlsbCB0aGVzZSB3YXJuaW5ncy4gU2hvdWxkIHRoZSBkcml2ZXIgaGFuZGxlIHRo aXMKJ3NwZWNpYWwnIGNhc2U/CgppZGUtZmxvcHB5IGRyaXZlciAwLjk5Lm5ld2lkZQpoZGQ6IE5v IGRpc2sgaW4gZHJpdmUKaGRkOiA5ODMwNGtCLCA5Ni82NC8zMiBDSFMsIDQwOTYga0JwcywgNTEy IHNlY3RvciBzaXplLCAyOTQxIHJwbQppZGUtZmxvcHB5OiBoZGQ6IEkvTyBlcnJvciwgcGMgPSAg MCwga2V5ID0gIDIsIGFzYyA9IDNhLCBhc2NxID0gIDAKaWRlLWZsb3BweTogaGRkOiBJL08gZXJy b3IsIHBjID0gMWIsIGtleSA9ICAyLCBhc2MgPSAzYSwgYXNjcSA9ICAwCmhkZDogTm8gZGlzayBp biBkcml2ZQppZGUtZmxvcHB5OiBoZGQ6IEkvTyBlcnJvciwgcGMgPSAgMCwga2V5ID0gIDIsIGFz YyA9IDNhLCBhc2NxID0gIDAKaWRlLWZsb3BweTogaGRkOiBJL08gZXJyb3IsIHBjID0gMWIsIGtl eSA9ICAyLCBhc2MgPSAzYSwgYXNjcSA9ICAwCmhkZDogTm8gZGlzayBpbiBkcml2ZQoKCi0tIApV U0IgaXMgZm9yIG1pY2UsIEZpcmVXaXJlIGlzIGZvciBtZW4hCgpzVXNlIGxJTlVYIGFnLCBuw5xS TkJFUkcKCgotLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tClRoZSBTRi5OZXQgZW1haWwgaXMgc3BvbnNvcmVkIGJ5IEVjbGlwc2VDb24gMjAwNApQ cmVtaWVyZSBDb25mZXJlbmNlIG9uIE9wZW4gVG9vbHMgRGV2ZWxvcG1lbnQgYW5kIEludGVncmF0 aW9uClNlZSB0aGUgYnJlYWR0aCBvZiBFY2xpcHNlIGFjdGl2aXR5LiBGZWJydWFyeSAzLTUgaW4g QW5haGVpbSwgQ0EuCmh0dHA6Ly93d3cuZWNsaXBzZWNvbi5vcmcvb3NkbgpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpMaW51eC1ob3RwbHVnLWRldmVsIG1h aWxpbmcgbGlzdCAgaHR0cDovL2xpbnV4LWhvdHBsdWcuc291cmNlZm9yZ2UubmV0CkxpbnV4LWhv dHBsdWctZGV2ZWxAbGlzdHMuc291cmNlZm9yZ2UubmV0Cmh0dHBzOi8vbGlzdHMuc291cmNlZm9y Z2UubmV0L2xpc3RzL2xpc3RpbmZvL2xpbnV4LWhvdHBsdWctZGV2ZWw= From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263787AbUA3NCX (ORCPT ); Fri, 30 Jan 2004 08:02:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263800AbUA3NCX (ORCPT ); Fri, 30 Jan 2004 08:02:23 -0500 Received: from ns.suse.de ([195.135.220.2]:63716 "EHLO Cantor.suse.de") by vger.kernel.org with ESMTP id S263787AbUA3NCV (ORCPT ); Fri, 30 Jan 2004 08:02:21 -0500 Date: Fri, 30 Jan 2004 13:59:35 +0100 From: Olaf Hering To: Jens Axboe Cc: Andrey Borzenkov , Andries Brouwer , Greg KH , linux-hotplug-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org Subject: Re: removable media revalidation - udev vs. devfs or static /dev Message-ID: <20040130125935.GA17969@suse.de> References: <200401012333.04930.arvidjaar@mail.ru> <20040103133749.A3393@pclin040.win.tue.nl> <20040103124216.GA31006@suse.de> <200401031905.31806.arvidjaar@mail.ru> <20040103175414.GX5523@suse.de> <20040107094321.GC21059@suse.de> <20040107095029.GX3483@suse.de> <20040107095632.GA22213@suse.de> <20040107095922.GY3483@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20040107095922.GY3483@suse.de> X-DOS: I got your 640K Real Mode Right Here Buddy! X-Homeland-Security: You are not supposed to read this line! You are a terrorist! User-Agent: Mutt und vi sind doch schneller als Notes Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 07, Jens Axboe wrote: > On Wed, Jan 07 2004, Olaf Hering wrote: > > On Wed, Jan 07, Jens Axboe wrote: > > > > > No need to put it in the kernel, user space fits the bil nicely. I don't > > > see how this would lead to IO errors? > > > > Ok, how should it be done on my SCSI and parallel port ZIP? An ATAPI ZIP > > with 2.4 behaves like that: > > > > > > nectarine:~ # blockdev --rereadpt /dev/hdd > > /dev/hdd: Eingabe-/Ausgabefehler > > nectarine:~ # dmesg | tail > > nfs: server Hilbert2 OK > > nfs: server Hilbert3 not responding, still trying > > nfs: server Hilbert3 OK > > nfs: server Hilbert3 not responding, still trying > > nfs: server Hilbert3 OK > > nfs: server Hilbert2 not responding, still trying > > nfs: server Hilbert2 OK > > ide-floppy: hdd: I/O error, pc = 0, key = 2, asc = 3a, ascq = 0 > > ide-floppy: hdd: I/O error, pc = 1b, key = 2, asc = 3a, ascq = 0 > > hdd: No disk in drive > > nectarine:~ # cat /proc/ide/hdd/model > > IOMEGA ZIP 100 ATAPI > > Two problems here. First, ide-floppy should not verbosely fail these > commands (2/3a/00 is 'medium not present'). Second, you are not using > the proper mechanism to detect media events. 2.6.2-mm2 prints still these warnings. Should the driver handle this 'special' case? ide-floppy driver 0.99.newide hdd: No disk in drive hdd: 98304kB, 96/64/32 CHS, 4096 kBps, 512 sector size, 2941 rpm ide-floppy: hdd: I/O error, pc = 0, key = 2, asc = 3a, ascq = 0 ide-floppy: hdd: I/O error, pc = 1b, key = 2, asc = 3a, ascq = 0 hdd: No disk in drive ide-floppy: hdd: I/O error, pc = 0, key = 2, asc = 3a, ascq = 0 ide-floppy: hdd: I/O error, pc = 1b, key = 2, asc = 3a, ascq = 0 hdd: No disk in drive -- USB is for mice, FireWire is for men! sUse lINUX ag, nÜRNBERG