Date: Mon, 19 Feb 2018 12:27:18 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-ppc@FreeBSD.org Subject: [Bug 225321] dtrace/powerpc64: System crash Message-ID: <bug-225321-21-8WvW1thedj@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-225321-21@https.bugs.freebsd.org/bugzilla/> References: <bug-225321-21@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D225321 --- Comment #2 from Breno Leitao <breno.leitao@gmail.com> --- Hi Justin, We are debugging this one in background, and the problem seems to be a wrong stack pointer (r1). Mainly after restoring it at sys/powerpc/aim/trap_subr64.S: ASENTRY_NOPROF(breakpoint) .... dbtrap: /* Write the trap vector to SPRG3 by computing LR & 0xff00 */ mflr %r1 andi. %r1,%r1,0xff00 mtsprg3 %r1 ld %r1,TRAP_TOCBASE(0) /* get new SP */ ld %r1,TOC_REF(tmpstk)(%r1) addi %r1,%r1,(TMPSTKSZ-48) We have a working patch already, and I would suggest the authors to share i= t. --=20 You are receiving this mail because: You are the assignee for the bug.=
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