From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9B890C47DDF for ; Wed, 24 Jan 2024 12:42:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To: Subject:MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=0WTqYPe3HlI68Ff21dl/0gVUixVEafI+71xJkkd5rxQ=; b=HMcL89VSt2bC8k 93TaZ3XKTfpNMbNkpNcjyEDjgYZmyMx2W6RsdZfOgX00VaVmoyoF1PDybiFopRqfMMi2SaiE7M7Ru 1Ur6wYLa46uIw6TgUtrVb0LY1rf7cFxXG2kQd4wgMWw43dcSCqtkp8q0A336NOnbN2LDRnxtNdsoQ UD9zunAU7/4aeb1HKyqVyO77kXWWPLP+qIIoQSelEdsoSQPmd87vKf39lu4bQGDnpj28mwyncM80/ dQ9KSplKhOVrZffM+bpK4/UwIZC/IJN4gAZUkH4+Vvs11ZjHB6m8plvSGouE6J7ihARZ9QSRchWx5 fZ0QmuwaPIz59sLsSp2g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rSca7-003HKI-0W; Wed, 24 Jan 2024 12:42:15 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rSca3-003HIO-2F for linux-arm-kernel@lists.infradead.org; Wed, 24 Jan 2024 12:42:13 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id AD1361FB; Wed, 24 Jan 2024 04:42:54 -0800 (PST) Received: from [10.57.77.165] (unknown [10.57.77.165]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 3654A3F5A1; Wed, 24 Jan 2024 04:42:06 -0800 (PST) Message-ID: Date: Wed, 24 Jan 2024 12:42:04 +0000 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v9 02/10] mm: Non-pmd-mappable, large folios for folio_add_new_anon_rmap() Content-Language: en-GB To: Sven Schnelle Cc: Jiri Olsa , David Hildenbrand , Andrew Morton , Matthew Wilcox , Yin Fengwei , Yu Zhao , Catalin Marinas , Anshuman Khandual , Yang Shi , "Huang, Ying" , Zi Yan , Luis Chamberlain , Itaru Kitayama , "Kirill A. Shutemov" , John Hubbard , David Rientjes , Vlastimil Babka , Hugh Dickins , Kefeng Wang , Barry Song <21cnbao@gmail.com>, Alistair Popple , linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Barry Song , linux-s390@vger.kernel.org References: <20231207161211.2374093-1-ryan.roberts@arm.com> <20231207161211.2374093-3-ryan.roberts@arm.com> <41dc7dff-1ea8-4894-a487-88d46ec2b2d8@redhat.com> <1188e67e-5c04-4bb5-b242-78d92c3fc85c@arm.com> <6caaced7-a9d7-4fe4-823a-11b96be83e46@arm.com> From: Ryan Roberts In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240124_044211_830700_854FB214 X-CRM114-Status: GOOD ( 15.41 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 24/01/2024 12:28, Sven Schnelle wrote: > Hi Ryan, > > Ryan Roberts writes: > >>>>>>>>>> I'm hitting this bug (console output below) with adding uprobe >>>>>>>>>> on simple program like: >>>>>>>>>> >>>>>>>>>> $ cat up.c >>>>>>>>>> int main(void) >>>>>>>>>> { >>>>>>>>>> return 0; >>>>>>>>>> } >>>>>>>>>> >>>>>>>>>> # bpftrace -e 'uprobe:/home/jolsa/up:_start {}' >>>>>>>>>> >>>>>>>>>> $ ./up >>>>>>>>>> >>>>>>>>>> it's on top of current linus tree master: >>>>>>>>>> 052d534373b7 Merge tag 'exfat-for-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat >>>>>>>>>> >>>>>>>>>> before this patch it seems to work, I can send my .config if needed >>>>>>> >>>>>>> Thanks for the bug report! >>>>>> >>>>>> I just hit the same bug in our CI, but can't find the fix in -next. Is >>>>>> this in the queue somewhere? >>>>> >>>>> we hit it as well, but I can see the fix in linux-next/master >>>>> >>>>> 4c137bc28064 uprobes: use pagesize-aligned virtual address when replacing pages >>>> >>>> Yes that's the one. Just to confirm: you are still hitting the VM_BUG_ON despite >>>> having this change in your kernel? Could you please send over the full bug log? >>> >>> ah sorry.. I meant the change fixes the problem for us, it just did not >>> yet propagate through the merge cycle into bpf trees.. but I can see it >>> in linux-next tree, so it's probably just matter of time >> >> OK great! How about you, Sven? Do you have this change in your kernel? Hopefully >> it should fix your problem. > > Same here - the fix makes uprobes work again, i just didn't see it in > torvalds-master and neither in todays linux-next. But Jiri is right, > it's in linux-next/master. I just missed to find it there. So everything > should be ok. 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