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[198.145.29.99]) by mx.google.com with ESMTPS id h61si19991728plb.256.2019.06.03.02.08.00 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 03 Jun 2019 02:08:00 -0700 (PDT) Received-SPF: pass (google.com: domain of krzk@kernel.org designates 198.145.29.99 as permitted sender) client-ip=198.145.29.99; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=OFyk4NY4; spf=pass (google.com: domain of krzk@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=krzk@kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from mail-lj1-f179.google.com (mail-lj1-f179.google.com [209.85.208.179]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D78F7271D3 for ; Mon, 3 Jun 2019 09:07:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559552880; bh=Rzr6gfXjAXNtZ72i1f03ZP5xQADxqoyjKQjlDsDgnOU=; h=From:Date:Subject:To:From; b=OFyk4NY4DclC0oTHFd+eXw4x0tlpPhoixH2tmw3kBXKOXH5TYz61qqu8iPuV6Oxov pUaAnT2yl/SpS/pTBkp8RfXYzmGPLR5VVU8Rq3Bsvowc2B50/wekJgJPg8z8tp5OC0 3dySqY9w+R7b6avLDJk8xQJPQ038nr55Pc74dKLs= Received: by mail-lj1-f179.google.com with SMTP id j24so15450924ljg.1 for ; Mon, 03 Jun 2019 02:07:59 -0700 (PDT) X-Received: by 2002:a2e:980e:: with SMTP id a14mr2097047ljj.60.1559552878019; Mon, 03 Jun 2019 02:07:58 -0700 (PDT) MIME-Version: 1.0 From: Krzysztof Kozlowski Date: Mon, 3 Jun 2019 11:07:46 +0200 X-Gmail-Original-Message-ID: Message-ID: Subject: [BUG BISECT] bug mm/vmalloc.c:470 (mm/vmalloc.c: get rid of one single unlink_va() when merge) To: Andrew Morton , "Uladzislau Rezki (Sony)" , Michal Hocko , linux-mm@kvack.org, Marek Szyprowski , "linux-samsung-soc@vger.kernel.org" , linux-kernel@vger.kernel.org, Stephen Rothwell , Hillf Danton , Thomas Gleixner , Tejun Heo Content-Type: text/plain; charset="UTF-8" X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hi, On recent next I see bugs during boot (after bringing up user-space or during reboot): kernel BUG at ../mm/vmalloc.c:470! On all my boards. On QEMU I see something similar, although the message is "Internal error: Oops - undefined instruction: 0 [#1] ARM", The calltrace is: [ 34.565126] [] (__free_vmap_area) from [] (__purge_vmap_area_lazy+0xd0/0x170) [ 34.573963] [] (__purge_vmap_area_lazy) from [] (_vm_unmap_aliases+0x1fc/0x244) [ 34.582974] [] (_vm_unmap_aliases) from [] (__vunmap+0x170/0x200) [ 34.590770] [] (__vunmap) from [] (do_free_init+0x40/0x5c) [ 34.597955] [] (do_free_init) from [] (process_one_work+0x228/0x810) [ 34.606018] [] (process_one_work) from [] (worker_thread+0x30/0x570) [ 34.614077] [] (worker_thread) from [] (kthread+0x134/0x164) [ 34.621438] [] (kthread) from [] (ret_from_fork+0x14/0x20) Full log here: https://krzk.eu/#/builders/1/builds/3356/steps/14/logs/serial0 https://krzk.eu/#/builders/22/builds/1118/steps/35/logs/serial0 Bisect pointed to: 728e0fbf263e3ed359c10cb13623390564102881 is the first bad commit commit 728e0fbf263e3ed359c10cb13623390564102881 Author: Uladzislau Rezki (Sony) Date: Sat Jun 1 12:20:19 2019 +1000 mm/vmalloc.c: get rid of one single unlink_va() when merge Boards: 1. Arch ARM Linux 2. exynos_defconfig 3. Exynos boards (Odroid XU3, etc), ARMv7, octa-core (Cortex-A7+A15), Exynos5422 SoC 4. Systemd: v239, static IP set in kernel command line Best regards, Krzysztof