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List:       netbsd-bugs
Subject:    Re: port-sparc/54789: Sparc boot fails with "Trap 0x21 while interrupts disabled"
From:       Andrew Doran <ad () netbsd ! org>
Date:       2019-12-30 20:50:01
Message-ID: 20191230205001.BD0117A1CC () mollari ! NetBSD ! org
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The following reply was made to PR port-sparc/54789; it has been noted by GNATS.

From: Andrew Doran <ad@netbsd.org>
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: port-sparc/54789: Sparc boot fails with "Trap 0x21 while
 interrupts disabled"
Date: Mon, 30 Dec 2019 20:47:41 +0000

    1956 memfault_sun4m:
    1957 	sethi	%hi(CPUINFO_VA), %l4
    1958 	ld	[%l4 + %lo(CPUINFO_VA+CPUINFO_GETSYNCFLT)], %l5
    1959 	jmpl	%l5, %l7
    1960 	 or	%l4, %lo(CPUINFO_SYNCFLTDUMP), %l4
 
 At this point CPUINFO_GETSYNCFLT points into the kernel heap (the exact spot
 it's detonating).
 
 db> x/x f0002024
 f0002024:       f0524fb0
 
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