[{"id":3669536,"web_url":"http://patchwork.ozlabs.org/comment/3669536/","msgid":"<69c4f09a.df0a0220.10eb49.07d8@mx.google.com>","list_archive_url":null,"date":"2026-03-26T08:38:49","subject":"Re: [LTP] [PATCH v2] userfaultfd: Minor fixes","submitter":{"id":82886,"url":"http://patchwork.ozlabs.org/api/people/82886/","name":"Andrea Cervesato","email":"andrea.cervesato@suse.com"},"content":"Hi ricardo,\n\n> +\tif (page) {\n> +\t\tSAFE_MUNMAP(page, page_size);\n> +\t\tSAFE_MUNMAP(copy_page, page_size);\n> +\t\tpage = NULL;\n> +\t}\n\nThis is gonna TBROK when copy_page is NULL. The same apply to all other\ntests which are affected by the same bug.\n\n--\nAndrea Cervesato\nSUSE QE Automation Engineer Linux\nandrea.cervesato@suse.com","headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","ltp@lists.linux.it"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","ltp@picard.linux.it"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=lists.linux.it header.i=@lists.linux.it\n header.a=rsa-sha256 header.s=picard header.b=NR9ipYwr;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=suse.com header.i=@suse.com header.a=rsa-sha256\n header.s=google header.b=FOwYo7pd;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.linux.it\n (client-ip=2001:1418:10:5::2; helo=picard.linux.it;\n envelope-from=ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it;\n receiver=patchwork.ozlabs.org)"],"Received":["from picard.linux.it (picard.linux.it [IPv6:2001:1418:10:5::2])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fhHHn44jjz1y1x\n\tfor ; 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charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Errors-To":"ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it","Sender":"\"ltp\" "}},{"id":3669658,"web_url":"http://patchwork.ozlabs.org/comment/3669658/","msgid":"<33458536-f2e1-4ab8-a7b7-5882481dfa9b@suse.de>","list_archive_url":null,"date":"2026-03-26T11:37:13","subject":"Re: [LTP] [PATCH v2] userfaultfd: Minor fixes","submitter":{"id":92484,"url":"http://patchwork.ozlabs.org/api/people/92484/","name":"Ricardo Branco","email":"rbranco@suse.de"},"content":"On 3/26/26 9:38 AM, Andrea Cervesato wrote:\n> Hi ricardo,\n>\n>> +\tif (page) {\n>> +\t\tSAFE_MUNMAP(page, page_size);\n>> +\t\tSAFE_MUNMAP(copy_page, page_size);\n>> +\t\tpage = NULL;\n>> +\t}\n> This is gonna TBROK when copy_page is NULL. The same apply to all other\n> tests which are affected by the same bug.\n\nFixed in v3.\n\nBTW, we have a minor difference in tests:\n\n$ diff userfaultfd03.c userfaultfd06.c\n\n<         tst_brk(TBROK | TERRNO, \"Received unexpected UFFD_EVENT %d\", \nmsg.event);\n---\n >         tst_brk(TFAIL, \"Received unexpected UFFD_EVENT %d\", msg.event);\n\nI think we should have TFAIL, WDYT?","headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","ltp@lists.linux.it"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","ltp@picard.linux.it"],"Authentication-Results":["legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.linux.it\n (client-ip=2001:1418:10:5::2; helo=picard.linux.it;\n envelope-from=ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it;\n receiver=patchwork.ozlabs.org)","smtp-out1.suse.de;\n\tnone"],"Received":["from picard.linux.it (picard.linux.it [IPv6:2001:1418:10:5::2])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fhMFZ1TfHz1y1x\n\tfor ; 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Thu, 26 Mar 2026 11:37:13 +0000"],"Message-ID":"<33458536-f2e1-4ab8-a7b7-5882481dfa9b@suse.de>","Date":"Thu, 26 Mar 2026 12:37:13 +0100","MIME-Version":"1.0","User-Agent":"Mozilla Thunderbird","Content-Language":"en-US","To":"Andrea Cervesato ","References":"<69c4f09a.df0a0220.10eb49.07d8@mx.google.com>","From":"Ricardo Branco ","In-Reply-To":"<69c4f09a.df0a0220.10eb49.07d8@mx.google.com>","X-Rspamd-Pre-Result":["action=no action; module=replies;\n Message is reply to one we originated","action=no action; module=replies;\n Message is reply to one we originated"],"X-Rspamd-Server":"rspamd2.dmz-prg2.suse.org","X-Spamd-Result":"default: False [-4.00 / 50.00];\n\tREPLY(-4.00)[]","X-Rspamd-Queue-Id":"3F4334D295","X-Rspamd-Action":"no action","X-Spam-Score":"-4.00","X-Spam-Level":"","X-Spam-Status":"No, score=0.0 required=7.0 tests=SPF_HELO_NONE,SPF_PASS\n shortcircuit=no autolearn=disabled version=4.0.1","X-Spam-Checker-Version":"SpamAssassin 4.0.1 (2024-03-25) on in-4.smtp.seeweb.it","X-Virus-Scanned":"clamav-milter 1.0.9 at in-4.smtp.seeweb.it","X-Virus-Status":"Clean","Subject":"Re: [LTP] [PATCH v2] userfaultfd: Minor fixes","X-BeenThere":"ltp@lists.linux.it","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"Linux Test Project ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Cc":"ltp@lists.linux.it","Content-Transfer-Encoding":"base64","Content-Type":"text/plain; charset=\"utf-8\"; Format=\"flowed\"","Errors-To":"ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it","Sender":"\"ltp\" "}},{"id":3669695,"web_url":"http://patchwork.ozlabs.org/comment/3669695/","msgid":"<20260326123255.GB152048@pevik>","list_archive_url":null,"date":"2026-03-26T12:32:55","subject":"Re: [LTP] [PATCH v2] userfaultfd: Minor fixes","submitter":{"id":70792,"url":"http://patchwork.ozlabs.org/api/people/70792/","name":"Petr Vorel","email":"pvorel@suse.cz"},"content":"> On 3/26/26 9:38 AM, Andrea Cervesato wrote:\n> > Hi ricardo,\n\n> > > +\tif (page) {\n> > > +\t\tSAFE_MUNMAP(page, page_size);\n> > > +\t\tSAFE_MUNMAP(copy_page, page_size);\n> > > +\t\tpage = NULL;\n> > > +\t}\n> > This is gonna TBROK when copy_page is NULL. The same apply to all other\n> > tests which are affected by the same bug.\n\n> Fixed in v3.\n\n> BTW, we have a minor difference in tests:\n\n> $ diff userfaultfd03.c userfaultfd06.c\n\n> <         tst_brk(TBROK | TERRNO, \"Received unexpected UFFD_EVENT %d\",\n> msg.event);\n> ---\n> >         tst_brk(TFAIL, \"Received unexpected UFFD_EVENT %d\", msg.event);\n\n> I think we should have TFAIL, WDYT?\n\nYes, IMHO TFAIL.\n\nRegards other cleanup: I again double checked if some test could be merged with\nothers but haven't found any.\n\nKind regards,\nPetr","headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","ltp@lists.linux.it"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","ltp@picard.linux.it"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n unprotected) header.d=suse.cz header.i=@suse.cz header.a=rsa-sha256\n header.s=susede2_rsa header.b=PFGkOb/Y;\n\tdkim=fail reason=\"signature verification failed\" header.d=suse.cz\n header.i=@suse.cz header.a=ed25519-sha256 header.s=susede2_ed25519\n header.b=SuFqLBuC;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key)\n header.d=suse.cz header.i=@suse.cz header.a=rsa-sha256 header.s=susede2_rsa\n header.b=PFGkOb/Y;\n\tdkim=neutral header.d=suse.cz header.i=@suse.cz header.a=ed25519-sha256\n header.s=susede2_ed25519 header.b=SuFqLBuC;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.linux.it\n (client-ip=213.254.12.146; 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MISSING_XM_UA(0.00)[];\n REPLYTO_EQ_FROM(0.00)[]","X-Rspamd-Action":"no action","X-Spam-Score":"-3.71","X-Spam-Level":"","X-Rspamd-Server":"rspamd1.dmz-prg2.suse.org","X-Rspamd-Queue-Id":"52D5B4D331","X-Spam-Status":"No, score=0.1 required=7.0 tests=DKIM_SIGNED,DKIM_VALID,\n DKIM_VALID_AU,DKIM_VALID_EF,DMARC_MISSING,SPF_HELO_NONE,SPF_PASS\n shortcircuit=no autolearn=disabled version=4.0.1","X-Spam-Checker-Version":"SpamAssassin 4.0.1 (2024-03-25) on in-2.smtp.seeweb.it","X-Virus-Scanned":"clamav-milter 1.0.9 at in-2.smtp.seeweb.it","X-Virus-Status":"Clean","Subject":"Re: [LTP] [PATCH v2] userfaultfd: Minor fixes","X-BeenThere":"ltp@lists.linux.it","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"Linux Test Project ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Reply-To":"Petr Vorel ","Cc":"ltp@lists.linux.it","Content-Type":"text/plain; charset=\"iso-8859-2\"","Content-Transfer-Encoding":"quoted-printable","Errors-To":"ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it","Sender":"\"ltp\" "}},{"id":3669699,"web_url":"http://patchwork.ozlabs.org/comment/3669699/","msgid":"<69c528cc.5d0a0220.15fc5b.6425@mx.google.com>","list_archive_url":null,"date":"2026-03-26T12:38:35","subject":"Re: [LTP] [PATCH v2] userfaultfd: Minor fixes","submitter":{"id":82886,"url":"http://patchwork.ozlabs.org/api/people/82886/","name":"Andrea Cervesato","email":"andrea.cervesato@suse.com"},"content":"Hi Ricardo,\n\n> \n> On 3/26/26 9:38 AM, Andrea Cervesato wrote:\n> > Hi ricardo,\n> >\n> >> +\tif (page) {\n> >> +\t\tSAFE_MUNMAP(page, page_size);\n> >> +\t\tSAFE_MUNMAP(copy_page, page_size);\n> >> +\t\tpage = NULL;\n> >> +\t}\n> > This is gonna TBROK when copy_page is NULL. The same apply to all other\n> > tests which are affected by the same bug.\n> \n> Fixed in v3.\n> \n> BTW, we have a minor difference in tests:\n> \n> $ diff userfaultfd03.c userfaultfd06.c\n> \n> <         tst_brk(TBROK | TERRNO, \"Received unexpected UFFD_EVENT %d\", \n> msg.event);\n> ---\n> >         tst_brk(TFAIL, \"Received unexpected UFFD_EVENT %d\", msg.event);\n> \n> I think we should have TFAIL, WDYT?\n\nIt depends on the subject of our test and both tests are actually testing\nother features than the specific uffd_msg attributes when an event is\nrecevied. For this reason I would keep TBROK in both of them.\n\nI see that also userfaultfd05 has the same issue. I don't remember the full\nconversation before merging the patches, but if none mentioned a reason in\nthere, the tests will need to be adapted.\n\nRegards,\n--\nAndrea Cervesato\nSUSE QE Automation Engineer Linux\nandrea.cervesato@suse.com","headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","ltp@lists.linux.it"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","ltp@picard.linux.it"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=lists.linux.it header.i=@lists.linux.it\n header.a=rsa-sha256 header.s=picard header.b=FrykjDyQ;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=suse.com header.i=@suse.com header.a=rsa-sha256\n header.s=google header.b=X6diNHcS;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.linux.it\n (client-ip=2001:1418:10:5::2; helo=picard.linux.it;\n envelope-from=ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it;\n receiver=patchwork.ozlabs.org)"],"Received":["from picard.linux.it (picard.linux.it [IPv6:2001:1418:10:5::2])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fhNcP5scBz1y1G\n\tfor ; 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charset=\"utf-8\"","Content-Transfer-Encoding":"base64","Errors-To":"ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it","Sender":"\"ltp\" "}},{"id":3669704,"web_url":"http://patchwork.ozlabs.org/comment/3669704/","msgid":"<69c529ef.050a0220.2ab184.8fc8@mx.google.com>","list_archive_url":null,"date":"2026-03-26T12:43:27","subject":"Re: [LTP] [PATCH v2] userfaultfd: Minor fixes","submitter":{"id":82886,"url":"http://patchwork.ozlabs.org/api/people/82886/","name":"Andrea Cervesato","email":"andrea.cervesato@suse.com"},"content":"> Yes, IMHO TFAIL.\n> \n\nI guess we need to agree on the solution here, otherwise Ricard will be\npuzzled :-)\n\nI see TBROK as the right solution, since TFAIL should be used on the subject of\nour tests. Also, if we receive the wrong event there's no purpose to continue\nwith the test because that means we have a kernel bug.\n\nRegards,\n--\nAndrea Cervesato\nSUSE QE Automation Engineer Linux\nandrea.cervesato@suse.com","headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","ltp@lists.linux.it"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","ltp@picard.linux.it"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=lists.linux.it header.i=@lists.linux.it\n header.a=rsa-sha256 header.s=picard header.b=lymX+3b+;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=suse.com header.i=@suse.com header.a=rsa-sha256\n header.s=google header.b=AdkcBTNU;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.linux.it\n (client-ip=2001:1418:10:5::2; helo=picard.linux.it;\n envelope-from=ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it;\n receiver=patchwork.ozlabs.org)"],"Received":["from picard.linux.it (picard.linux.it [IPv6:2001:1418:10:5::2])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fhNk069jTz1yGD\n\tfor ; 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charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Errors-To":"ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it","Sender":"\"ltp\" "}},{"id":3669718,"web_url":"http://patchwork.ozlabs.org/comment/3669718/","msgid":"<20260326131203.GA160250@pevik>","list_archive_url":null,"date":"2026-03-26T13:12:03","subject":"Re: [LTP] [PATCH v2] userfaultfd: Minor fixes","submitter":{"id":70792,"url":"http://patchwork.ozlabs.org/api/people/70792/","name":"Petr Vorel","email":"pvorel@suse.cz"},"content":"> > Yes, IMHO TFAIL.\n\n> I guess we need to agree on the solution here, otherwise Ricard will be\n> puzzled :-)\n\nYeah, I'm sorry for the noise.\n\n> I see TBROK as the right solution, since TFAIL should be used on the subject of\n> our tests. Also, if we receive the wrong event there's no purpose to continue\n> with the test because that means we have a kernel bug.\n\nOK, tst_brk(TBROK | TERRNO is probably better (and we definitely want TERRNO).\n\nI overlooked Ricardo suggests tst_brk(TFAIL) not tst_res(TFAIL).\nThe only concern I have is that we skip testing on userfaultfd01.c due tst_brk()\nbut it's probably quite rare.\n\nAlso, this is the problem when test have a lot of duplicity => tests diverge\nsometimes in subtle details. But, similarly to fanotify tests, userfaultfd tests\nare quite different that it's questionable if factoring out small parts improves\nthings or complicate.\n\nKind regards,\nPetr","headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","ltp@lists.linux.it"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","ltp@picard.linux.it"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n unprotected) header.d=suse.cz header.i=@suse.cz header.a=rsa-sha256\n header.s=susede2_rsa header.b=ZVWN3WWm;\n\tdkim=fail reason=\"signature verification failed\" header.d=suse.cz\n header.i=@suse.cz header.a=ed25519-sha256 header.s=susede2_ed25519\n header.b=3ajxyYNE;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key)\n header.d=suse.cz header.i=@suse.cz header.a=rsa-sha256 header.s=susede2_rsa\n header.b=ZVWN3WWm;\n\tdkim=neutral header.d=suse.cz header.i=@suse.cz header.a=ed25519-sha256\n header.s=susede2_ed25519 header.b=3ajxyYNE;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.linux.it\n (client-ip=213.254.12.146; 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