From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: MUSB interrupt storm on device removal From: Bin Liu Message-Id: <20190110030703.GA3427@uda0271908> Date: Wed, 9 Jan 2019 21:07:03 -0600 To: =?iso-8859-1?Q?M=E5ns_Rullg=E5rd?= Cc: linux-usb@vger.kernel.org List-ID: T24gTW9uLCBEZWMgMTcsIDIwMTggYXQgMDk6MzY6MTdQTSArMDAwMCwgTcOlbnMgUnVsbGfDpXJk IHdyb3RlOgo+IEJpbiBMaXUgPGItbGl1QHRpLmNvbT4gd3JpdGVzOgo+IAo+ID4gT24gTW9uLCBE ZWMgMTcsIDIwMTggYXQgMDc6MTY6MDhQTSArMDAwMCwgTcOlbnMgUnVsbGfDpXJkIHdyb3RlOgo+ ID4+IEJpbiBMaXUgPGItbGl1QHRpLmNvbT4gd3JpdGVzOgo+ID4+IAo+ID4+ID4gSGksCj4gPj4g Pgo+ID4+ID4gT24gTW9uLCBEZWMgMTcsIDIwMTggYXQgMDM6MTM6MTJQTSArMDAwMCwgTcOlbnMg UnVsbGfDpXJkIHdyb3RlOgo+ID4+ID4+IEkgaGF2ZSBhIHN0cmFuZ2UgcHJvYmxlbSB3aXRoIHRo ZSBtdXNiIGRyaXZlciBpbiBob3N0IG1vZGUgb24gQU0zMzU4Cj4gPj4gPj4gKGJlYWdsZWJvbmUp IGhhcmR3YXJlLiAgSWYgSSBjb25uZWN0IGEgbXVsdGktcG9ydCBzZXJpYWwgYWRhcHRlciBhbmQK PiA+PiA+PiBvcGVuIHR3byBvciBtb3JlIG9mIHRoZSB0dHlzLCB0aGVuIHVucGx1ZyB0aGUgZGV2 aWNlLCBhbiBpbnRlcnJ1cHQgc3Rvcm0KPiA+PiA+PiBlbnN1ZXMgdGhhdCBtYWtlcyB0aGUgc3lz dGVtIGNvbXBsZXRlbHkgdW5yZXNwb25zaXZlIHVudGlsIHRoZSB3YXRjaGRvZwo+ID4+ID4+IHJl c2V0cyBpdC4gIEVuYWJsaW5nIHNvbWUgZGVidWcgbWVzc2FnZXMsIEkgZ2V0IHRoaXMgcmVwZWF0 ZWQgZW5kbGVzc2x5Ogo+ID4+ID4+IAo+ID4+ID4+IG11c2ItaGRyYyBtdXNiLWhkcmMuMTogdXNi aW50ciAoMCkgZXBpbnRyKDFjMDAwMCkKPiA+PiA+PiBtdXNiLWhkcmMgbXVzYi1oZHJjLjE6IGVu ZCAyIFJYIHByb3RvIGVycm9yCj4gPj4gPj4gbXVzYi1oZHJjIG11c2ItaGRyYy4xOiAuLi4gbmV4 dCBlcDIgUlggdXJiIDcyYWFiYzEzCj4gPj4gPj4gbXVzYi1oZHJjIG11c2ItaGRyYy4xOiA8LS0g aHcyIHVyYiA3MmFhYmMxMyBzcGQzIGRldjQgZXAzaW4gaF9hZGRyMDIgaF9wb3J0MDAgYnl0ZXMg NDA5Ngo+ID4+ID4+IG11c2ItaGRyYyBtdXNiLWhkcmMuMTogUlhDU1IyIDo9IDIwMjAKPiA+PiA+ PiBtdXNiLWhkcmMgbXVzYi1oZHJjLjE6IGVuZCAzIFJYIHByb3RvIGVycm9yCj4gPj4gPj4gbXVz Yi1oZHJjIG11c2ItaGRyYy4xOiAuLi4gbmV4dCBlcDMgUlggdXJiIDk0YzJjYzQzCj4gPj4gPj4g bXVzYi1oZHJjIG11c2ItaGRyYy4xOiA8LS0gaHczIHVyYiA5NGMyY2M0MyBzcGQzIGRldjQgZXAy aW4gaF9hZGRyMDIgaF9wb3J0MDAgYnl0ZXMgNDA5Ngo+ID4+ID4+IG11c2ItaGRyYyBtdXNiLWhk cmMuMTogUlhDU1IzIDo9IDIwMjAKPiA+PiA+PiBtdXNiLWhkcmMgbXVzYi1oZHJjLjE6IGVuZCA0 IFJYIHByb3RvIGVycm9yCj4gPj4gPj4gbXVzYi1oZHJjIG11c2ItaGRyYy4xOiAuLi4gbmV4dCBl cDQgUlggdXJiIGNiZGMzOWM2Cj4gPj4gPj4gbXVzYi1oZHJjIG11c2ItaGRyYy4xOiA8LS0gaHc0 IHVyYiBjYmRjMzljNiBzcGQzIGRldjQgZXA1aW4gaF9hZGRyMDIgaF9wb3J0MDAgYnl0ZXMgNDA5 Ngo+ID4+ID4+IG11c2ItaGRyYyBtdXNiLWhkcmMuMTogUlhDU1I0IDo9IDIwMjAKPiA+PiA+PiAK PiA+PiA+PiBUaGlzIGhhcHBlbnMgd2l0aCBib3RoIGEgdHdvLXBvcnQgRlRESSBzZXJpYWwgYWRh cHRlciBhbmQgYSBTaW1jb20gR1NNCj4gPj4gPj4gbW9kZW0gKFF1YWxjb21tIGJhc2VkKSB1c2lu ZyB0aGUgIm9wdGlvbiIgZHJpdmVyLiAgSW4gYm90aCBjYXNlcywgdGhlCj4gPj4gPj4gcHJvYmxl bSBvY2N1cnMgb25seSBpZiB0d28gb3IgbW9yZSBvZiB0aGUgdHR5cyBhcmUgb3BlbmVkIHdoZW4g dGhlCj4gPj4gPj4gZGV2aWNlIGlzIHVucGx1Z2dlZC4KPiA+PiA+Cj4gPj4gPiBQbGVhc2UgaGVs cCBtZSB0byB1bmRlcnN0YW5kIHRoZSB0ZXN0IGNhc2Ugc28gdGhhdCBJIGNhbiB0cnkgdG8KPiA+ PiA+IHJlcGxpY2F0ZSB0aGUgaXNzdWUgLSBpZiBJIGNvbm5lY3QgYSBtdWx0aS1wb3J0IEZUREkg YWRhcHRlciwgdXNlIGNhdAo+ID4+ID4gY29tbWFuZCB0byBvcGVuIG1vcmUgdGhhbiBvbmUgcG9y dCB0aGVuIHVucGx1ZyB0aGUgYWRhcHRlciwgSSBzaG91bGQKPiA+PiA+IHNlZSB0aGUgZmxvb2Rp bmcgZGVidWcgbWVzc2FnZXM/Cj4gPj4gCj4gPj4gWWVzLCB0aGF0J3Mgd2hhdCBJJ20gc2VlaW5n LiAgT2J2aW91c2x5LCB5b3UgaGF2ZSB0byBmaXJzdCBlbmFibGUgdGhvc2UKPiA+PiBkZWJ1ZyBt ZXNzYWdlcy4gIE90aGVyd2lzZSBpdCBqdXN0IHN0b3BzIGRlYWQgaW4gaXRzIHRyYWNrcy4KPiA+ PiAKPiA+PiBJIGZvcmdvdCB0byBtZW50aW9uLCBJIGFsc28gdHJpZWQgbWFraW5nIHRoZSBpbnRl cnJ1cHQgaGFuZGxlciB0aHJlYWRlZC4KPiA+PiBUaGlzIGFsbG93cyB0aGUgc3lzdGVtIHRvIHJl bWFpbiBzbGlnaHRseSByZXNwb25zaXZlLCBidXQgaXQgbmV2ZXIKPiA+PiByZWNvdmVycy4KPiA+ PiAKPiA+PiA+IE9uIHdoaWNoIGtlcm5lbCB2ZXJzaW9uIGRvIHlvdSBzZWUgdGhlIHByb2JsZW0/ Cj4gPj4gCj4gPj4gVGhpcyB3YXMgb24gNC4xOS45LiAgSSBkb24ndCBzZWUgYW55IGxhdGVyIGNv bW1pdHMgdGhhdCBsb29rIHJlbGF0ZWQsCj4gPj4gYnV0IEkgY2FuIHRyeSBzb21lIG90aGVyIHRy ZWUgaWYgeW91IHN1Z2dlc3Qgb25lLgo+ID4KPiA+IFRoaXMgc2hvdWxkIGJlIGZpbmUuIFRoZSBk cml2ZXIgd2FzIGJhcmVseSB0b3VjaGVkIHJlY2VudGx5Lgo+ID4gSSBoYXZlIG9ubHkgYSBmZXcg ZGF5cyBsZWZ0IGZvciAyMDE4LCBsZXQgbWUgdHJ5IHRvIHJlcHJvZHVjZSBpdCBmaXJzdAo+ID4g YWZ0ZXIgSSBhbSBiYWNrIGluIEphbi4KPiAKPiBObyBwcm9ibGVtLiAgSSBzdXNwZWN0IG1vc3Qg b2YgdXMgd2lsbCBoYXZlIHNvbWUgdGltZSBvZmYgZHVyaW5nIHRoZQo+IGhvbGlkYXlzLgo+IAo+ IElmIGl0IGhlbHBzLCB3ZSBmaXJzdCBub3RpY2VkIHRoaXMgd2l0aCBhIDQuOSAoc3RhYmxlKSBr ZXJuZWwsIHNvIGl0J3MKPiBub3QgYSByZWNlbnQgcmVncmVzc2lvbi4KCldoZW4gSSB0cmllZCB0 byByZXByb2R1Y2UgdGhlIGlzc3VlIHRvZGF5LCBzb21ldGhpbmcgd2VpcmQgaGFwcGVuZWQsIHRo ZQp2NC4xOS45IGtlcm5lbCBJIGNvbXBpbGVkIGRvZXNuJ3QgYnJpbmcgdXNiMSBwb3J0IG9uIG15 IEJCQiB0byBob3N0Cm1vZGUsIG90ZyBzdGF0ZSB3YXMgc3R1Y2sgaW4gYV9pZGxlLCBEZXZDdGwg cmVnaXN0ZXIgaXMgMHg4MS4gVGhlIGxhdGVzdAp2NS4wLXJjMSBhbmQgc29tZXdoZXJlIGluIHY0 LjE2IGRvIG5vdCBoYXZlIHN1Y2ggcHJvYmxlbS4gSSB0cmllZCBnaXQKYmlzZWN0LCBidXQgaXQg d2FzIHNjcmV3ZWQgdXAgc29tZXdoZXJlIG5lZWQgdG8gc3RhcnQgb3Zlci4gSSB3aWxsIGZpbmQK c29tZSB0aW1lIGZvciB0aGlzIGlzc3VlLgoKQnkgdGhlIHdheSwgSSBkb24ndCBzZWUgdGhlIGlu dGVycnVwdCBzdG9ybSBpc3N1ZSB3aXRoIHY1LjAtcmMxIG9uIG15CkJCQiwgd2hlbiB1bnBsdWdn ZWQgdGhlIEZUREkgNC1wb3J0IGRldmljZSwgdGhlICdwcm90byBlcnJvcicgbWVzc2FnZQpvbmx5 IHNob3dzIG9uY2UgZm9yIGVhY2ggcG9ydCBvcGVuZWQsIHRoZW4gTVVTQl9ESVNDT05ORUNUIGlu dGVycnVwdAooMHgyMCkgaGFwcGVuZWQgYW5kIGV2ZXJ5dGhpbmcgd2FzIHRvcm4gZG93bi4KClJl Z2FyZHMsCi1CaW4uCg==