Date: Mon, 04 Feb 2019 16:02:17 +0000 From: bugzilla-noreply@freebsd.org To: ppc@FreeBSD.org Subject: [Bug 224872] powerpc64: ddb breakpoints throwing a fast kernel trap Message-ID: <bug-224872-21-IsgX45jmBB@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-224872-21@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=224872 --- Comment #5 from commit-hook@freebsd.org --- A commit references this bug: Author: luporl Date: Mon Feb 4 16:02:04 UTC 2019 New revision: 343744 URL: https://svnweb.freebsd.org/changeset/base/343744 Log: powerpc64: Add a trap stack area Currently, the trap code switches to the the temporary stack in the dbtrap section. It works in most cases, but in the beginning of the execution, the temp stack is being used, as starting in the powerpc_init() code. In this current scenario, the stack is being overwritten, which causes the return of breakpoint() to take abnormal execution. This current patchset create a small stack to use by the dbtrap: codepath avoiding the corruption of the temporary stack. PR: 224872 Submitted by: breno.leitao_gmail.com Reviewed by: jhibbits Differential Revision: https://reviews.freebsd.org/D14484 Changes: head/sys/powerpc/aim/locore32.S head/sys/powerpc/aim/locore64.S head/sys/powerpc/aim/trap_subr32.S head/sys/powerpc/aim/trap_subr64.S -- You are receiving this mail because: You are the assignee for the bug.help
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