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Wed, 09 Apr 2025 07:31:32 -0700 (PDT) MIME-Version: 1.0 References: <2025040216-directive-unmapped-5301@gregkh> In-Reply-To: <2025040216-directive-unmapped-5301@gregkh> From: Naresh Kamboju Date: Wed, 9 Apr 2025 20:01:20 +0530 X-Gm-Features: ATxdqUGsFIk4VNkjjSv0a16kAsaDqgjo9GWyB8SFwTjeyfnGkilfWAombhlDVSY Message-ID: Subject: Re: qemu-i386 boot failed on mainline master - no console output To: Greg Kroah-Hartman Cc: open list , X86 ML , linux-mm , lkft-triage@lists.linaro.org, Linux Regressions , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Vinod Koul , Andrew Morton , Arnd Bergmann , Dan Carpenter , Anders Roxell , Linus Torvalds Content-Type: text/plain; charset="UTF-8" X-Rspam-User: X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 3A33E40013 X-Stat-Signature: wiqjtec9b54afjj7kagp6zxdjs9cqejg X-HE-Tag: 1744209093-89135 X-HE-Meta: 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 JJWeJTEI lPueP0TY5+Fa5mbP4y9u0fjcpqo2oEr0MG8xroHddLisqq7sHEkwjUiENQspU3794rNbpLzFBdUw1kERsnfZJSAJiOYrOcPIJpmv8ixghvj4BI/z6LQLDb6P5aU0PsSxszvCMkM3M1o0LXyo9t15+B14p0yRWbfM4s6ekoPOEH6hlV38Urc5eb0rm5oCewpid+08avLpJT9XH6tAQx5ez4FQiIc3qnQSR5mrxt0ZKGWTwDHpcyHwH4nkINy//kAbpVh2gPf2tbIMEAX29wenv8/5s05pn0sMJ0oeulUddQjpjCzGFXNAOh78Gr+V34JACYBACOau8D5IX7FDo7/Y9dsC1SXLm8mqq+5zL+MlKQfRZuaNcF2YfcwHx+DtilAnXMOPSPPJ7EQpQ28I= 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: List-Subscribe: List-Unsubscribe: On Wed, 2 Apr 2025 at 16:57, Greg Kroah-Hartman wrote: > > On Wed, Apr 02, 2025 at 02:24:53PM +0530, Naresh Kamboju wrote: > > + Linus > > + Greg KH > > > > On Wed, 2 Apr 2025 at 14:14, Naresh Kamboju wrote: > > > > > > Regressions on qemu-i386 devices boot tests failed with defconfig on > > > the mainline master no console output. > > > > > > > The qemu-i386 boot failed with no console output and is still happening on > > the latest mainline master branch. > > > > > First seen on the char-misc-6.15-rc1 merge 25601e85441d ("Merge tag > > > 'char-misc-6.15-rc1' of...) > > > Good: [08733088b566b58283f0f12fb73f5db6a9a9de30] Merge tag > > > 'rust-fixes-6.15-merge' > > > Bad: [91e5bfe317d8f8471fbaa3e70cf66cae1314a516] Merge tag 'dmaengine-6.15-rc1' > > > > > > * qemu-i386 > > > - boot > > > > > > Regression Analysis: > > > - New regression? Yes > > > - Reproducibility? Yes > > > > > > Test regression: qemu-i386 boot failed on mainline master > > > Reported-by: Linux Kernel Functional Testing > > > > > > Anders bisected this to, > > > # first bad commit: > > > [eb0ece16027f8223d5dc9aaf90124f70577bd22a] > > > Merge tag 'mm-stable-2025-03-30-16-52' of > > > git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm > > But this is bisected to the mm merge, not the char-misc merge, right? > > And is this just on i386? Nothing arch-specific in the char-misc merge > that I can see, so I would place bets on mm doing something accidentally > on 32bit systems. The qemu-i386 boot pass with the latest mainline kernel with clang-nightly and gcc-13. Linux version 6.15.0-rc1 (tuxmake@tuxmake) (Debian clang version 21.0.0 (++20250402105505+c57b9c233a87-1~exp1~20250402225526.1363), Debian LLD 21.0.0) #1 SMP PREEMPT_DYNAMIC @1743981563 Links: - https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/naresh/tests/2vUkJBr5vV419fzcTFDkOmiIkax - https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/naresh/tests/2vUk3KcyEleDxVppDpZ1jeSIx0j - Naresh > > thanks, > > greg k-h