Re: bin/60150: named(8) crashes at startup on NetBSD/i386 11.0_RC2

["Izumi Tsutsui via gnats" <gnats-admin%NetBSD.org@localhost>]

The following reply was made to PR bin/60150; it has been noted by GNATS.

From: Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: netbsd-bugs%netbsd.org@localhost, tsutsui%ceres.dti.ne.jp@localhost
Subject: Re: bin/60150: named(8) crashes at startup on NetBSD/i386 11.0_RC2
Date: Sat, 4 Apr 2026 13:48:21 +0900

 >  It might actually be the max_align_t value on i386 at the core of this issue
 >  as I found out some years back.
 
 It looks the problem is not "sizeof(max_align_t) on i386 is 12 bytes"
 but "upstream lib/isc/jemalloc_shim.h (local implementation of
 non-standard mallocx() and variants) assumes sizeof(max_align_t)
 is power of 2 (or multiple of 8)".
 
 Using in-tree jemalloc(3) by enabling HAVE_JEMALLOC explicitly in
 src/external/mpl/bind/include/config.h also fixes the problem
 (I'm not sure why it has been disabled by default):
 
 ---
 
 Index: Makefile.inc
 ===================================================================
 RCS file: /cvsroot/src/external/mpl/bind/Makefile.inc,v
 retrieving revision 1.17.2.1
 diff -u -p -d -r1.17.2.1 Makefile.inc
 --- Makefile.inc	25 Aug 2025 16:17:25 -0000	1.17.2.1
 +++ Makefile.inc	4 Apr 2026 04:38:31 -0000
 @@ -17,11 +17,14 @@ CWARNFLAGS.clang+=	-Wno-unused-value -Wn
  LIBUVDIR=	${NETBSDSRCDIR}/external/mit/libuv
  LIBUVOBJDIR!=   cd ${LIBUVDIR}/lib && ${PRINTOBJDIR}
  LIBURCUDIR=	${NETBSDSRCDIR}/external/lgpl2/userspace-rcu
 +LIBJEMALLOCDIR=	${NETBSDSRCDIR}/external/bsd/jemalloc
  LIBURCUMBOBJDIR!=   cd ${LIBURCUDIR}/lib/liburcu-mb && ${PRINTOBJDIR}
  LIBURCUCDSOBJDIR!=   cd ${LIBURCUDIR}/lib/liburcu-cds && ${PRINTOBJDIR}
  LIBURCUCOMMONOBJDIR!=   cd ${LIBURCUDIR}/lib/liburcu-common && ${PRINTOBJDIR}
 +LIBJEMALLOCOBJDIR!=   cd ${LIBJEMALLOC}/lib && ${PRINTOBJDIR}
  CPPFLAGS+=	-I${LIBUVDIR}/dist/include
  CPPFLAGS+=	-I${LIBURCUDIR}/dist/include -I${LIBURCUDIR}/include
 +CPPFLAGS+=	-I${LIBJEMALLOCDIR}/include
  CFLAGS+=	-std=gnu18
  LINTFLAGS+=	-Ac11
  
 @@ -61,6 +64,7 @@ LDADD+=		-L${LIBURCUMBOBJDIR} -lurcu-mb_
  LDADD+=		-L${LIBURCUCDSOBJDIR} -lurcu-cds_g
  LDADD+=		-L${LIBURCUCOMMONOBJDIR} -lurcu-common_g
  LDADD+=		-L${LIBUVOBJDIR} -luv_g
 +LDADD+=		-L${LIBJEMALLOCOBJDIR} -ljemalloc_g
  LDADD+=		-lexecinfo_g -lelf_g -lkvm_g -lz_g -lm_g
  .else
  LDADD+=		-lisccfg -ldns -lns
 @@ -70,6 +74,7 @@ LDADD+=		-L${LIBURCUMBOBJDIR} -lurcu-mb
  LDADD+=		-L${LIBURCUCDSOBJDIR} -lurcu-cds
  LDADD+=		-L${LIBURCUCOMMONOBJDIR} -lurcu-common
  LDADD+=		-L${LIBUVOBJDIR} -luv
 +LDADD+=		-L${LIBJEMALLOCOBJDIR} -ljemalloc
  LDADD+=		-lexecinfo -lelf -lkvm -lz -lm
  DPADD+=		${LIBISCCC} ${LIBISC}
  DPADD+=		${LIBUVOBJDIR}/libuv.a
 Index: include/config.h
 ===================================================================
 RCS file: /cvsroot/src/external/mpl/bind/include/config.h,v
 retrieving revision 1.23.2.1
 diff -u -p -d -r1.23.2.1 config.h
 --- include/config.h	25 Aug 2025 16:17:26 -0000	1.23.2.1
 +++ include/config.h	4 Apr 2026 04:38:33 -0000
 @@ -225,10 +225,10 @@
  #define HAVE_INTTYPES_H 1
  
  /* Define to 1 if jemalloc is available */
 -/* #undef HAVE_JEMALLOC */
 +#define HAVE_JEMALLOC 1
  
  /* Define to 1 if you have the <jemalloc/jemalloc.h> header file. */
 -/* #undef HAVE_JEMALLOC_JEMALLOC_H */
 +#define HAVE_JEMALLOC_JEMALLOC_H 1
  
  /* Use json-c library */
  /* #undef HAVE_JSON_C */
 
 ---
 Izumi Tsutsui