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Mon, 3 Jul 2023 05:40:43 +0200 (CEST) Received: from [192.168.1.6] (unknown [94.250.191.183]) by domac.alu.hr (Postfix) with ESMTPSA id C3FC960161; Mon, 3 Jul 2023 05:40:29 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=alu.unizg.hr; s=mail; t=1688355643; bh=g9yXXDDfiKFGXYs35wZ62G1hHziQXBpu/IYLkrKqkDg=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=pGyWXq8MBiAkxy88cpu9HnHmlxrDWx9q9bPyFEbzm/8m6xDVbsq/XfhJVF5DA73BH nxih1zM0HFu4D/uCLVzcPjwohOdjmAt5vuLAQxt1Ks1qJjveWeFHi+9+HBIgqzHK3W lHpfezaRI+Fajwp0SzEsu8ruBL1/bDUV5G8WOL1LREe5FT6u3/lBir2sDcpLym6tQF Qep99UPR/BJNQqn2Y1ofO8TLkFGRh/XS+8uCJelcyD4aUlgPKvKwOA8V8HVNoeNThY Yom4DAzrnlvmtaBK3fE3XWIaFZdafHz3HHNFBGuICWXh/qBrYjYpWSMeRgwzq+LwVR 3AwFlPs303oEg== Message-ID: Date: Mon, 3 Jul 2023 05:40:29 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.12.0 Subject: Re: [CRASH][BISECTED] 6.4.1 crash in boot To: Bagas Sanjaya , Linux Kernel Mailing List , Linux LLVM Cc: linux-kbuild@vger.kernel.org, Kees Cook , Linux Regressions , Nathan Chancellor , Nick Desaulniers , Guenter Roeck References: <9a8e34ad-8a8b-3830-4878-3c2c82e69dd9@alu.unizg.hr> Content-Language: en-US From: Mirsad Goran Todorovac In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 7/3/23 03:44, Bagas Sanjaya wrote: > On Sun, Jul 02, 2023 at 06:36:12PM +0200, Mirsad Goran Todorovac wrote: >> Hi, >> >> After new git pull the kernel in Torvalds tree with default debug config >> failed to boot with error that occurs prior to mounting filesystems, so there >> is no log safe for the screenshot(s) here: >> >> [1] https://domac.alu.unizg.hr/~mtodorov/linux/crashes/2023-07-02/ >> >> Bisect shows the first bad commit is 2d47c6956ab3 (v6.4-rc2-1-g2d47c6956ab3): >> >> # good: [98be618ad03010b1173fc3c35f6cbb4447ee2b07] Merge tag 'Smack-for-6.5' of https://github.com/cschaufler/smack-next >> git bisect good 98be618ad03010b1173fc3c35f6cbb4447ee2b07 >> # bad: [f4a0659f823e5a828ea2f45b4849ea8e2dd2984c] drm/i2c: tda998x: Replace all non-returning strlcpy with strscpy >> git bisect bad f4a0659f823e5a828ea2f45b4849ea8e2dd2984c >> . >> . >> . >> # bad: [2d47c6956ab3c8b580a59d7704aab3e2a4882b6c] ubsan: Tighten UBSAN_BOUNDS on GCC >> git bisect bad 2d47c6956ab3c8b580a59d7704aab3e2a4882b6c >> # first bad commit: [2d47c6956ab3c8b580a59d7704aab3e2a4882b6c] ubsan: Tighten UBSAN_BOUNDS on GCC >> >> The architecture is Ubuntu 22.04 with lshw and config give in the attachment. > > Can you show early kernel log (something like dmesg)? No, machine freezes after those screenfulls and I could only take a screenshot. > Anyway, I'm adding it to regzbot: > > #regzbot ^introduced: 2d47c6956ab3c8 > #regzbot title: Linux kernel fails to boot due to UBSAN_BOUNDS tightening > > Thanks. >