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From: Pawel Worach <pawel.worach@gmail.com>
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Date: Fri, 5 Aug 2011 02:17:50 +0200
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To: Test Rat <ttsestt@gmail.com>
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Subject: Re: [clang] (gpt)zfsboot is broken: zfs_alloc()/zfs_free() mismatch
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On Aug 1, 2011, at 14:24, Test Rat wrote:

> Anyone else? I can still reproduce with trunk r136607.
> boot and gptboot seem to be unaffected.
>=20
> IIRC, with previous clang import it just stuck during boot
> without any error messages.

A workaround for the hang on boot and "error 1 lba X" failures is the =
following patch, it would be interesting if it also makes the =
zfs_alloc/free error go away too.

Index: sys/boot/i386/zfsboot/Makefile
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
--- sys/boot/i386/zfsboot/Makefile	(revision 224653)
+++ sys/boot/i386/zfsboot/Makefile	(working copy)
@@ -20,7 +20,6 @@
 	-fomit-frame-pointer \
 	-fno-unit-at-a-time \
 	-mno-align-long-strings \
-	-mrtd \
 	-DBOOT2 \
 	-DSIOPRT=3D${BOOT_COMCONSOLE_PORT} \
 	-DSIOFMT=3D${B2SIOFMT} \
Index: sys/boot/i386/gptzfsboot/Makefile
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
--- sys/boot/i386/gptzfsboot/Makefile	(revision 224653)
+++ sys/boot/i386/gptzfsboot/Makefile	(working copy)
@@ -22,7 +22,6 @@
 	-fomit-frame-pointer \
 	-fno-unit-at-a-time \
 	-mno-align-long-strings \
-	-mrtd \
 	-DGPT -DBOOT2 \
 	-DSIOPRT=3D${BOOT_COMCONSOLE_PORT} \
 	-DSIOFMT=3D${B2SIOFMT} \

dim@ has filed an upstream bug, =
http://llvm.org/bugs/show_bug.cgi?id=3D10591

Regards
--=20
Pawel