From: Peter Zijlstra <peterz@infradead.org>
To: Sandipan Das <sandipan.das@amd.com>
Cc: "Erhard F." <erhard_f@mailbox.org>, linux-kernel@vger.kernel.org
Subject: Re: [bisected] clang 15 built kernel fails to boot, stuck at "Loading Linux 6.1.1 ...", gcc 12 built kernel with same config boots fine
Date: Fri, 20 Jan 2023 11:27:00 +0100 [thread overview]
Message-ID: <Y8psdH5KRQC3bcTI@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <178000f1-1464-03cb-2335-a01b77e70692@amd.com>
On Fri, Jan 20, 2023 at 11:20:53AM +0530, Sandipan Das wrote:
> With the combination of defconfig+kvm_guest.config+localyesconfig, the only
> thing that made a difference was the compiler optimization choice. The kernel
> boots up with CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y but not with
> CONFIG_CC_OPTIMIZE_FOR_SIZE=y. Both Clang 15 and 16 kernel builds are affected.
-Os(tupid) strikes again :-)
Lemme go try that.
next prev parent reply other threads:[~2023-01-20 10:27 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-19 1:23 [bisected] clang 15 built kernel fails to boot, stuck at "Loading Linux 6.1.1 ...", gcc 12 built kernel with same config boots fine Erhard F.
2023-01-19 13:56 ` Peter Zijlstra
2023-01-19 15:18 ` Peter Zijlstra
2023-01-20 5:50 ` Sandipan Das
2023-01-20 10:27 ` Peter Zijlstra [this message]
2023-01-20 11:16 ` Peter Zijlstra
2023-01-20 11:49 ` Erhard F.
2023-01-20 14:57 ` Peter Zijlstra
2023-01-20 15:20 ` Erhard F.
2023-01-20 16:13 ` Peter Zijlstra
2023-01-20 15:32 ` Peter Zijlstra
2023-01-22 8:46 ` Masami Hiramatsu
2023-01-19 14:44 ` Linux kernel regression tracking (#adding)
2023-01-26 11:47 ` Linux kernel regression tracking (#update)
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