From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ivanoab7.miniserver.com ([37.128.132.42] helo=www.kot-begemot.co.uk) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mYCy4-00FQhM-E9 for linux-um@lists.infradead.org; Wed, 06 Oct 2021 19:52:46 +0000 Subject: Re: Bug 214611 - UM: stdout output ceases under certain conditions References: <20211002210023.55861502@crass-HP-ZBook-15-G2> <20211004115410.4716345d@crass-HP-ZBook-15-G2> <3fa82a81-83b5-0e14-9a9d-36282a77d177@kot-begemot.co.uk> <9fe55088-219a-67a4-a34c-91b92dc5c3c8@kot-begemot.co.uk> <20211006130531.26a17e49@crass-HP-ZBook-15-G2> <20211006144817.0fbf821e@crass-HP-ZBook-15-G2> From: Anton Ivanov Message-ID: <5606fffc-a750-4e13-e805-ccd640f7de6d@kot-begemot.co.uk> Date: Wed, 6 Oct 2021 20:52:40 +0100 MIME-Version: 1.0 In-Reply-To: <20211006144817.0fbf821e@crass-HP-ZBook-15-G2> Content-Language: en-US List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-um" Errors-To: linux-um-bounces+geert=linux-m68k.org@lists.infradead.org To: development@efficientek.com Cc: Johannes Berg , linux-um@lists.infradead.org T24gMDYvMTAvMjAyMSAyMDo0OCwgR2xlbm4gV2FzaGJ1cm4gd3JvdGU6Cj4gT24gV2VkLCA2IE9j dCAyMDIxIDE5OjUzOjQ4ICswMTAwCj4gQW50b24gSXZhbm92IDxhbnRvbi5pdmFub3ZAa290LWJl Z2Vtb3QuY28udWs+IHdyb3RlOgo+Cj4+IE9uIDA2LzEwLzIwMjEgMTk6MDUsIEdsZW5uIFdhc2hi dXJuIHdyb3RlOgo+Pj4gT24gV2VkLCA2IE9jdCAyMDIxIDE3OjQ0OjE0ICswMTAwCj4+PiBBbnRv biBJdmFub3YgPGFudG9uLml2YW5vdkBrb3QtYmVnZW1vdC5jby51az4gd3JvdGU6Cj4+Pgo+Pj4+ IE9uIDA2LzEwLzIwMjEgMTY6NTcsIEFudG9uIEl2YW5vdiB3cm90ZToKPj4+Pj4gT24gMDQvMTAv MjAyMSAxNzo1NCwgR2xlbm4gV2FzaGJ1cm4gd3JvdGU6Cj4+Pj4+PiBPbiBNb24sIDA0IE9jdCAy MDIxIDE0OjQ4OjM0ICswMjAwCj4+Pj4+PiBKb2hhbm5lcyBCZXJnIDxqb2hhbm5lc0BzaXBzb2x1 dGlvbnMubmV0PiB3cm90ZToKPj4+Pj4+Cj4+Pj4+Pj4gT24gU2F0LCAyMDIxLTEwLTAyIGF0IDIx OjAwIC0wNTAwLCBHbGVubiBXYXNoYnVybiB3cm90ZToKPj4+Pj4+Pj4gSGkgbGlzdCwKPj4+Pj4+ Pj4KPj4+Pj4+Pj4gSSdtIG5vdGlmeWluZyB0aGUgbGlzdCBvZiBhIGJ1ZyByZXBvcnRbMV0gSSBj cmVhdGVkIGluIHRoZSBrZXJuZWwKPj4+Pj4+Pj4gYnVnemlsbGEuIEknbSBub3Qgc3Vic2NyaWJl ZCB0byB0aGlzIGxpc3QsIHNvIHBsZWFzZSBhZGQgdGhpcyBteSBlbWFpbAo+Pj4+Pj4+PiBpbiBh bnkgcmVwbGllcyB0byB0aGlzIGVtYWlsLgo+Pj4+Pj4+PiBbMV0gaHR0cHM6Ly9idWd6aWxsYS5r ZXJuZWwub3JnL3Nob3dfYnVnLmNnaT9pZD0yMTQ2MTEKPj4+Pj4+PiBUaGlzIHJlYWxseSBoYXMg bm90aGluZyB0byBkbyB3aXRoIFVCRCBvciBzb21ldGhpbmcuIFdoYXQncyBoYXBwZW5pbmcgaXMK Pj4+Pj4+PiB0aGF0IHlvdSdyZSB1c2luZyB0aGUgY29tbWFuZCBsaW5lIGJhZGx5Lgo+Pj4+Pj4+ Cj4+Pj4+Pj4gV2hhdCBkbyB5b3UgZXhwZWN0IHRoaXM6Cj4+Pj4+Pj4KPj4+Pj4+PiAgIMKgwqAg Li4uIDwgPChjYXQgL2Rldi9udWxsKQo+Pj4+Pj4+Cj4+Pj4+Pj4gdG8gZG8/Cj4+Pj4+PiBUaGlz IHdhcyBqdXN0IGEgd2F5IHRvIHRyaWdnZXIgdGhlIGlzc3VlIEkgd2FzIHNlZWluZy4gSSBoYXZl IGEgYmFzaAo+Pj4+Pj4gc2NyaXB0IHdoaWNoIHdhcyBkb2luZyBzb21ldGhpbmcgbGlrZSB0aGUg Zm9sbG93aW5nOgo+Pj4+Pj4KPj4+Pj4+IGdyZXAgInNlYXJjaCIgL3BhdGgvdG8vZmlsZSB8Cj4+ Pj4+PiB3aGlsZSByZWFkIFZBUjsgZG8KPj4+Pj4+ICAgwqDCoCBydW5fc29tZV9zY3JpcHRfd2hp Y2hfZXZlbnR1YWxseV9ydW5zX3VtbCAkVkFSOwo+Pj4+Pj4gZG9uZQo+Pj4+Pj4KPj4+Pj4+IEkg d2FzIGNvbmZ1c2VkIHdoeSBydW5uaW5nIHRoaXMgc2NyaXB0IGNhdXNlZCBVTUwgdG8gbG9zZSBv dXRwdXQgYWx3YXlzCj4+Pj4+PiB3aGVuIG1vdW50aW5nIHRoZSB1YmQgaW4gdGhlIFVNTCBtb3Vu dCBzY3JpcHQuIEFuZCBpdCBkaWRuJ3QgaGFwcGVuCj4+Pj4+PiB3aGVuIEkgcmFuICJydW5fc29t ZV9zY3JpcHRfd2hpY2hfZXZlbnR1YWxseV9ydW5zX3VtbCIgYWxvbmUuIFNpbmNlIHRoZQo+Pj4+ Pj4gYW1vdW50IG9mIGRhdGEgcmV0dXJuZWQgYnkgdGhlIGdyZXAgd2FzIHNtYWxsLCB0aGlzIGlz c3VlIHdhcyB0cmlnZ2VyZWQKPj4+Pj4+IGFsbCB0aGUgdGltZS4gSWYgdGhlIG91dHB1dCB3ZXJl IGEgbG90IG9mIGRhdGEsIEkgbWlnaHQgaGF2ZSBub3RpY2VkCj4+Pj4+PiB0aGF0IGVhcmx5IHJ1 bnMgb2YgcnVuX3NvbWVfc2NyaXB0X3doaWNoX2V2ZW50dWFsbHlfcnVuc191bWwgd291bGQgbm90 Cj4+Pj4+PiBoYXZlIG91dHB1dCBkaXNhcHBlYXIgYWZ0ZXIgbW91bnRpbmcuIFRoYW5rcyBmb3Ig ZGVidWdnaW5nIHRoaXMuCj4+Pj4+Pgo+Pj4+Pj4+IFdoYXQgaGFwcGVucyBpcyB0aGF0IHRoZSBz aGVsbCBjcmVhdGVzIGEgcGlwZS4gVGhpcyBwaXBlIGlzIGNvbm5lY3RlZCBvbgo+Pj4+Pj4+IHRo ZSBvbmUgc2lkZSB0byBmZDoxIGluIFVNTCAoc3RkaW4pIGFuZCBvbiB0aGUgb3RoZXIgdG8gc3Rk b3V0IG9mICdjYXQnLgo+Pj4+Pj4+Cj4+Pj4+Pj4gTm93IHRoaXMgaXMgYWxsIGZpbmUsIGJ1dCAn Y2F0JyB3aWxsICpxdWl0IGltbWVkaWF0ZWx5KiBzaW5jZSBpdCBjYW5ub3QKPj4+Pj4+PiByZWFk IGFueXRoaW5nIGZyb20gL2Rldi9udWxsIChpdCdzIHdyaXRlLW9ubHkhKS4KPj4+Pj4+Pgo+Pj4+ Pj4+IFRoZXJlZm9yZSwgdGhlIGZkOjEgaW4gVU1MIHdpbGwgYmUgaW52YWxpZGF0ZWQgcHJldHR5 IG11Y2ggaW1tZWRpYXRlbHksCj4+Pj4+Pj4gcmVjZWl2aW5nIEVQT0xMSFVQLgo+Pj4+Pj4+Cj4+ Pj4+Pj4gVGhpcyBpcyBkZXRlY3RlZCBieSB0aGUgZXBvbGwgY29kZSwgcmFpc2luZyBhbiBpbnRl cnJ1cHQgaW50byB0aGUgbGluZQo+Pj4+Pj4+IGxldmVsIGNvZGUsIGFuZCB0aGUgbGluZSBjb2Rl IHRoZW4gY2xvc2VzIHRoZSBzdGRpbyBjb25zb2xlIGNoYW5uZWwKPj4+Pj4+PiBlbnRpcmVseSwg aW5jbHVkaW5nIHN0ZG91dC4KPj4+Pj4+IFRoaXMgc2VlbXMgbGlrZSBpdCBjb3VsZCBiZSBhIGJ1 Zy4gQ291bGRuJ3QgdGhlIGNvbnNvbGUgbm90IGJlIGNsb3NlZCwKPj4+Pj4+IGJ1dCB0aGUgY29u c29sZSBoYW5kbGluZyBjb2RlIGludGVybmFsbHkgbWFyayBzdGRpbiBhcyBjbG9zZWQ/IFBlcmhh cHMKPj4+Pj4+IHRoZXJlIGNvdWxkIGV2ZW4gYmUgbG9naWMgdG8gZGV0ZWN0IGlmIHN0ZGluIGFu ZCBzdGRvdXQgYXJlIGZyb20gdGhlCj4+Pj4+PiBzYW1lIGZkLCB0aGVuIGNsb3NlIHRoZSBjb25z b2xlLCBvdGhlcndpc2UgZG9uJ3QuIEZyb20gYSB1c2VyCj4+Pj4+PiBwZXJzcGVjdGl2ZSwgdGhp bmtpbmcgb2YgVU1MIGFzIGEgbm9ybWFsIHByb2Nlc3MsIGl0IGRvZXNuJ3QgbWFrZSBzZW5zZQo+ Pj4+Pj4gdGhhdCBjbG9zaW5nIHN0ZGluIHdvdWxkIGNsb3NlIHN0ZG91dCBhcyB3ZWxsLgo+Pj4+ PiBUaGVyZSBpcyBhbiBldmVuIG1vcmUgY29udm9sdXRlZCBjYXNlIHdoZXJlIHRoZSBzdGRpbiBp cyBhIHNvY2tldCAod2hpY2gKPj4+Pj4gaXMgcG9zc2libGUgLSB5b3UgcGFzcyBpdCB0byBVTUwg YXMgYSBmZDpOKS4gVGhhdCBjYW4gYmUgaGFsZi1jbG9zZWQuCj4+Pj4+Cj4+Pj4+IExvb2tpbmcg YXQgaXQgYXQgdGhlIG1vbWVudCwgYnV0IHRvIGJlIGhvbmVzdCwgc2VwYXJhdGluZyB0aGUgbG9n aWMgZm9yIGluCj4+Pj4+IGFuZCBvdXQgaWYgdGhlIGZkIGlzIHRoZSBzYW1lIGlzIGdvaW5nIHRv IGJlIHF1aXRlIGRpZmZpY3VsdCAoaWYgYXQgYWxsCj4+Pj4+IHBvc3NpYmxlKS4gSXQgYWxsIGVu ZHMgYXMgRVBPTEwgZXZlbnRzIGF0IHRoZSBib3R0b20uIEV2ZW4gaWYgeW91IGhhbmRsZSBJTgo+ Pj4+PiBhbmQgT1VUIHNlcGFyYXRlbHkgaW4gdGhlIHVwcGVyIGxheWVycywgdGhlIGtlcm5lbCB3 aWxsIGhhbmRsZSB0aGVtIGFzIHRoZQo+Pj4+PiBzYW1lIGZkIGFuZCBhbnkgZXZlbnQgKGYuZS4g Y2xvc3VyZSkgd2lsbCBzaG93IHVwIG9uIGJvdGguCj4+Pj4gRnVydGhlciB0byB0aGlzLCB0aGUg c2FtZSBob2xkcyBldmVuIGlmIHdlIHN0YXJ0IHBsYXlpbmcgZ2FtZXMgd2l0aCBtdWx0aXBsZQo+ Pj4+IEVQT0xMIGRlc2NyaXB0b3JzLCBkdXAtaW5nIGZkcywgZXRjLCB0aGUgZXZlbnQgd2lsbCBz dGlsbCBzaG93IHVwIG9uIGFsbCBvZgo+Pj4+IHRoZW0uCj4+PiBUaGFua3MgZm9yIGxvb2tpbmcg aW50byB0aGlzLiBJZiBJJ20gdW5kZXJzdGFuZGluZyBjb3JyZWN0bHksIHlvdSdyZQo+Pj4gbG9v a2luZyBhdCB0aGUgY2FzZSB3aGVyZSB0aGUgVU1MIHByb2Nlc3MgaGFzIFNURElOIGFuZCBTVERP VVQgdG8gdGhlCj4+PiBzYW1lIGZpbGUgZGVzY3JpcHRvci4gSG93ZXZlciwgdGhlIHNpdHVhdGlv biBpcyB3aGVuIFNURElOIGlzIHRvIGEgcGlwZQo+Pj4gdGhhdCBnZXRzIGNsb3NlZCBhbmQgU1RE T1VUIGlzIHRvIHNvbWV0aGluZyBlbHNlIChwdHksIHR0eSwgZmlsZSwKPj4+IGRpZmZlcmVudCBw aXBlLCBldGMuLikuIERvZXMgeW91ciBsb2dpYyBzdGlsbCBob2xkIHRydWUgaW4gdGhpcyBjYXNl Pwo+PiBOby4gVGhleSBzaG91bGQgYmUgb24gZGlmZmVyZW50IElSUXMuCj4+Cj4+IFF1ZXN0aW9u Ogo+Pgo+PiBIYXZlIHlvdSB0cmllZCB1c2luZyBjb24wPW51bGwsZmQ6MSA/Cj4+Cj4+IEFzc2ln biBudWxsIGV4cGxpY2l0bHkgdG8gdGhlIGlucHV0IGluc3RlYWQgb2YgYSBmZCB3aGljaCBpcyBj bG9zZWQ/Cj4+Cj4+IEEKPiBJIGp1c3QgdHJpZWQgdGhhdCBhbmQgaXQgZG9lcyBub3QgdHJpZ2dl ciB0aGUgYnVnLCB3aGljaCBJJ2QgZXhwZWN0Lgo+IFRoaXMgd291bGQgYmUgYW5vdGhlciB3b3Jr IGFyb3VuZCwgYnV0IEkgdGhpbmsgaXQgd291bGQgYmUgZ29vZCB0byBmaXgKPiB0aGUgYnVnLiBX aGF0IGlmIHlvdSB3YW50IHRvIHBpcGUgc29tZSBkYXRhIHRvIHN0ZGluPyBUaGVuIHdoZW4gcHJv Z3JhbQo+IG9uIHRoZSB3cml0ZSBzaWRlIG9mIHRoZSBwaXBlIGV4aXRzIGJlY2F1c2UgaXRzIGRv bmUgc2VuZGluZyBkYXRhLCB0aGUKPiBVTUwgd2lsbCBzdG9wIHNlbmRpbmcgZGF0YSB0byBzdGRv dXQgYmVjYXVzZSB0aGUgcGlwZSBnZXRzIGNsb3NlZC4gIEhvdwo+IGhhcmQgZG8geW91IHRoaW5r IHRoaXMgd291bGQgYmUgdG8gZml4PwoKSSB3aWxsIHNlZSBpZiB3ZSBjYW4gZG8gc29tZXRoaW5n IGFib3V0IGl0LgoKSSdkIHJhdGhlciBoYXZlIHRoaXMgYXMgYW4gb3B0aW9uIGluc3RlYWQgb2Yg YWx3YXlzIGVuYWJsZWQsIGJlY2F1c2UgCmhhdmluZyBpdCBhbHdheXMgb24gd2lsbCBicmVhayBl cnJvciBoYW5kbGluZyBlbHNld2hlcmUuCgo+Cj4gR2xlbm4KPgo+Pj4gR2xlbm4KPj4+Cj4+Pj4g SSBmcmFua2x5IGRvIG5vdCBoYXZlIGFueSBpZGVhcyBhdCBwcmVzZW50IHRvIHNvbHZlIHRoaXMu IFRoaXMgaXMganVzdAo+Pj4+IHRoZSB3YXkgaXQgaXMgLSBhIGZpbGUgY2xvc2UgZXZlbnQgZm9y IG9uZSBmZCB3aWxsIHNob3cgdXAgb24gYWxsIGluc3RhbmNlcwo+Pj4+IHdoZXJlIGl0IGlzIG1l bnRpb25lZC4KPj4+Pgo+Pj4+IEEuCj4+Pj4KPj4+Pj4gQS4KPj4+Pj4KPj4+Pj4+PiBJZiBhbnl0 aGluZywgdGhlIGJ1ZyBpcyB0aGF0IHdoZW4geW91J3JlIG5vdCBjYXVzaW5nIGVub3VnaCBpbnRl cnJ1cHRzCj4+Pj4+Pj4gYnkgdXNpbmcgdWJkLCBzb21laG93IHRoaXMgc2l0dWF0aW9uIGRvZXNu J3QgZ2V0IGRldGVjdGVkLCBhbmQgdGhlCj4+Pj4+Pj4gY29uc29sZSByZW1haW5zIG9wZW4sIHNv IHlvdSBzdGlsbCBzZWUgdGhlIG91dHB1dC4uLiBJIHRoaW5rIHRoaXMgbWlnaHQKPj4+Pj4+PiBi ZSBpZiBjbG9zaW5nIHRoZSBGRCBkaWRuJ3QgZ2VuZXJhdGUgYSBTSUdJTz8KPj4+Pj4+IFRoaXMg bGVhZHMgdG8gc3RyYW5nZSBiZWhhdmlvci4gQnV0IGZvciB0aGlzIGlzc3VlLCBJIHRoaW5rIHRo ZQo+Pj4+Pj4gc3VnZ2VzdGlvbiBhYm92ZSB3b3VsZCBvYnZpYXRlIHRoZSBuZWVkIHRvIGRvIGFu eXRoaW5nIGFib3V0IHRoaXMuCj4+Pj4+Pgo+Pj4+Pj4+IEluIGZhY3QsIGlmIHlvdSBnZW5lcmF0 ZSBTSUdJTyBpbiAqYW55KiBvdGhlciB3YXksIGluY2x1ZGluZyBwcmVzc2luZwo+Pj4+Pj4+IGVu dGVyIHdoaWxlIHRoZSBzY3JpcHQgaXMgcnVubmluZyBldmVuIGlmIHN0ZGluIGlzIHJlZGlyZWN0 ZWQgZnJvbSB5b3VyCj4+Pj4+Pj4gZGVhZCBjYXQgWzFdLCB5b3Ugc3RpbGwgZ2V0IHRoZSBzYW1l IGJlaGF2aW91ciBvZiB0aGUgY2hhbm5lbCBnZXR0aW5nCj4+Pj4+Pj4gY2xvc2VkLgo+Pj4+Pj4g T2ssIEkndmUgY29uZmlybWVkIHRoYXQuIEkgdGhpbmsgdGhhdCdzIGFub3RoZXIgcmVhc29uIHRv IGZpeCB0aGlzIGluCj4+Pj4+PiBhIG1hbm5lciB0aGF0IGRvZXNuJ3QgdGllIHN0ZGluIHRvIHN0 ZG91dCwganVzdCBoaXR0aW5nIGVudGVyIGNhbiBtYWtlCj4+Pj4+PiBvdXR1dCBkaXNhcHBlYXIg KG5vbi1pbnR1aXRpdmUpLiBJbiBteSBjYXNlLCBzdGRvdXQgd2FzIGdvaW5nIHRvIGEgZmlsZS4K Pj4+Pj4+IFNvIG15IGludHVpdGlvbiB3b3VsZCBzYXkgdGhhdCBzdGRpbiAoZnJvbSBhIHBpcGUp IGFuZCBzdGRvdXQgKHRvIGEKPj4+Pj4+IGZpbGUpIHNob3VsZG4ndCBiZSBjb25uZWN0ZWQgKHll cyBhIHByb2dyYW0gY2FuIGNyZWF0ZSBhbnkga2luZCBvZgo+Pj4+Pj4gY29ubmVjdGlvbiBpdCB3 YW50cywgYnV0IGl0J3Mgbm90IGludHVpdGl2ZSkuIEl0IHdvdWxkIGJlIGxpa2UgcnN5bmMKPj4+ Pj4+IC1hdiBkaXIxIGRpcjIgPCA8KGNhdCAvZGV2L251bGwpIGhhdmluZyBpdHMgb3V0cHV0IGRp c2FwcGVhciBpZiB5b3UKPj4+Pj4+IHByZXNzZWQgZW50ZXIgaW4gdGhlIG1pZGRsZSBvZiB0aGUg cnVuLgo+Pj4+Pj4KPj4+Pj4+PiBqb2hhbm5lcwo+Pj4+Pj4+Cj4+Pj4+Pj4gWzFdIGRpZCBJIHJl YWxseSBqdXN0IHdyaXRlIHRoYXQ/IGhlaC4KPj4+Pj4+IFRoYW5rcywgZ290IGEgY2h1Y2tsZSBv dXQgb2YgdGhhdC4KPj4+Pj4+Cj4+Pj4+PiBfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fXwo+Pj4+Pj4gbGludXgtdW0gbWFpbGluZyBsaXN0Cj4+Pj4+PiBsaW51 eC11bUBsaXN0cy5pbmZyYWRlYWQub3JnCj4+Pj4+PiBodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9y Zy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LXVtCj4+Pj4+Pgo+IF9fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fCj4gbGludXgtdW0gbWFpbGluZyBsaXN0Cj4gbGlu dXgtdW1AbGlzdHMuaW5mcmFkZWFkLm9yZwo+IGh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21h aWxtYW4vbGlzdGluZm8vbGludXgtdW0KCgotLSAKQW50b24gUi4gSXZhbm92Cmh0dHBzOi8vd3d3 LmtvdC1iZWdlbW90LmNvLnVrLwoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fCmxpbnV4LXVtIG1haWxpbmcgbGlzdApsaW51eC11bUBsaXN0cy5pbmZyYWRl YWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgt dW0K