From nobody Wed Nov 19 00:29:08 2025 X-Original-To: freebsd-current@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4dB2Rb4GG5z6GsLk for ; Wed, 19 Nov 2025 00:29:31 +0000 (UTC) (envelope-from marklmi@yahoo.com) Received: from sonic304-25.consmr.mail.gq1.yahoo.com (sonic304-25.consmr.mail.gq1.yahoo.com [98.137.68.206]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4dB2RY4ygzz46RW for ; Wed, 19 Nov 2025 00:29:29 +0000 (UTC) (envelope-from marklmi@yahoo.com) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=yahoo.com header.s=s2048 header.b=t+HM4VnW; dmarc=pass (policy=reject) header.from=yahoo.com; spf=pass (mx1.freebsd.org: domain of marklmi@yahoo.com designates 98.137.68.206 as permitted sender) smtp.mailfrom=marklmi@yahoo.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1763512166; bh=GznQXr6ekAQk3ry/LhyAPGJkHcX2J0pZ+q0XAwaxJVE=; h=From:Subject:Date:References:To:In-Reply-To:From:Subject:Reply-To; b=t+HM4VnWoBgqa8gTEWTi32g3SN3P1C2x/xaoOY2/aYKqK3SnI2PpN3/rgj9mYEy/UDZUquT1kPJSCwD/nvLvl4LJeT7TI/BIiqo8n06+fqAWt0y37mSfWoVkXJTZHQ1DCL22FrSRhQW6vD5+mOVQIhoT1WS/8kZZ+DCh7GcGs2UYU5/yX87LWL9BdE3Hkk0yx2baWQtY0X7i4guAvFJPjZU06YZMdzZlplKJwneDOyTjzdT+15chodcfEiDVWDTkyGpzXndWKebpvYos7IMyjogNJwErBTAZQZqJKgkYih4fxsb8LENgxXvKhgsOfbppgxTyzgbeH9OqdkDEzo0Y4Q== X-SONIC-DKIM-SIGN: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1763512166; bh=VS5HNmQR5S0OH0mwEHPYihGdSz/QxKVBf3ach7qzATs=; h=X-Sonic-MF:From:Subject:Date:To:From:Subject; b=kMwHZF4MljaDzBpmTzOrSR+NRXFFbj/bTODarWmXH4eZqw/y1xeq0suIeowtbXv/+IU7BnAfZPwVOlW46zd3SZa52oAS8jz07cCBiWDgbLP/ZxvhLIYeTqXkQTKDSKtpuL+oX74UkIyHzjX8phkqsRwU2cj39DtcaQAx5+aWceTQHc/xFdCpMw8kpCjAo0e9Rm+aUlhiIkxleLsedtICYsQ4ol0Y3cXt7zYqqgrluYrcB1D2J+2+C0Qx2eEni/k/kOnya3UXoW+OmvejFTz3KFRfYUO/oruyDmFpckLBjQbCvzxhXyiOqbeu+51y/leBsY/bIMhaH8OVnByPXWUwGA== X-YMail-OSG: fIHO6cUVM1mVYuNOWvkIFg5min.Mspfwxo3CVXdWKeCfMfGrsXJwwttGN9MgA7x 5EFRvr.6ucIrbzt.sJ4TZOovUJowhXf2TjTpJZEHG3gkxQoiUsswosKsSLgZDJWaYJVhRRbnUMP4 Pw2Ggu2d9sO92sTlXN8whYx2yn3LsK7nebrOjjLv88Qlyq1RdP3jda2LmJ5YBobn6D2dR4f0SjQI 042dBlXVI29mOo_zFUB95oFutrMhpm84duT8A9oFqaSAUFhhdSo4bLsdXaeDouDsTDhbCwtwoRbC YMVGDXKJBWcdOg.IhCnsccKQSqBisurNm7Kj8Uu6DSRCYDKUatsYGXVEIMzzQiCfs4fLBPaDps0k y4GItsydej2apwr9jgGPM1TFKYiwKuMSUBUodN7LXYkoDYICGrlkmDyXvYDbYHjomoh6xbEYDokx NHsyCmQ0OOkOvHocTwCa.PvGenQeT2SuRy2EX94nh5tV9e9lcK5PLpgM_2JtPLcIgbZ095OBHU7U eSuwNndakkFbPOXILWdKIfWPSzhf8boeJSWN5E7yHeSM6EjNPnHql.2yOt.qUyYEWDp9EqEEx6CP LAb1w2LAD2HHHNRaS9nnj526OfFbWAvQfmnlzfH4b4CAQIEoZhx4.aUcboXzTly3qVwhjluck_w7 w_trCBQoLvOZJXxm2T2Efe1iICf95CBY.n2vchmyfabNqJXNN0GT9riwZX88gvjqaXSdVF6AGAyo Rl1c15hhbvt5PBodhSZrk1q_6M_b4O8ynLwtrYwkeSrQqUJ_fNSeVIGhYkAeWvesZ1TtGvJr4SEk 0odDQBSxfdixeT5_7xb2v.xCRkBPoPb1BQT7rNMdvYcDTSYe7.D1pwqPCYLaSgS5.bqHWECiAQYq ZduTMcQE4bdpEqvKWepsI0igTwxYlbOWDYfxxHYbr_aYqHi.nxZOeLkkCt3hJi7kwOBMyug.bUcK MKSt.xS1jCLzyOS06Icvy6yIswTRMvkraL35TGIUWrsmq4mRp9A9x72FHKUCyHIGfsAivl6gxLa1 lqBb6If3n45Kx6lWTaZT77bxJQ9IwQq6N7LezEYdKxXD518XB3oDMjCwCTR1kK2_hwjd9sAz0NSv 0qjeu8P391vphkfhCJJlP_2ppFrKI.tXzP1awB0GDo293whLOTxGLzm_BBmIOJNljTjTv72bRqTV 8Lj.SUvl20ECG0BXHN5Zpdt9SbhbR.QiqEJDKkB0A76BZXmMqjzQW42MDFJpvDc326Fb8huAuzcA rZIbT7X8NFCRTnR9j.TeA5_qFg4OQo1r84lslspuiJM_rNEGW8AmD20P9seJogbSsC3wxr20p6nz kvs6N5wlqHw.S_ycml9TXWr8xWMkuXgCmLeQNd4EcnpnBp9Hv.WBbQUyN_K0XDHmUxbPJcouhQsm TpyKPqZM5XxxR90.vzZX95hA2zbm45DG.my3.RUBGGhxKKilF3MH0bO144k1OTHBv0c2cM81Sphw 24sEGNMgzTJDMYKmVNWB2ujDdNp4ZYRouZuOjAAkJIEPzXDVHKZzWkjLZ1edtw4.TLzVVyoc48uL IZepia4BWEriJhg8Ghxupsrx0o_7H5NSxT76YeDcwQSC.VK6G1AGK9XuReJL0M2L4GfSmJkyqQAy tzwc.70LbgDclQFkRvZ9_EA4BnM86dllaOwonhHZ7WH_O1JdRvn1Qf4.h6Y7Pin59XhJ.CcxK1jp eK6tcbnYa_gyvxFLNrjyj970PKz6uJ6NC2ZCubgshpYA_oiuSrw9MNmbHSIcldAjLWq9KfwPeJ5y usqfZH.eZHPGzdZkYdzmEk3sAtUVPGHgepDGv8t1.i5C2KfujkWTXbGoZsIUvj6qmzHvvRDmB_67 l1VU1I2YNg_MsqWv0E6HGCV7VYOj1a.D27Y5OVLWsyaS3XNKSweKMBwrOpUf8E_4qytVsKgr325b NxnnvQ8lVBk9CLwdKWqqgm89aj5unGppGxG7KiwOAPcwjPOMsgz6hyVn1K6yjQzMQEYr23hAgCAB aXHfTiVDTyS1qnVObrBuFTjXT_icq7uHdwNqw0zZq9a1tbeJBYLjbdeY8d0ZBn6fRqHKr__P22gR FFvcTr.hAhTDIIvkMs4GH_7JR3KqTa7YIN8XADzfAeLoBw5JcimnlBqJhFeIJ1qC1c9WUu5iUzLD wP1AAc46vx5Ovh2VDgt5WW30wr_xBc.vCmGPtdCiwCnYCuc8mguf4ynliUGl2xBavNlxWMBiTZBS UOLXYlfaGEK1ZJZeU13In7_NKb_qeT28yZ9cBwC05wEyEKZ7GdjrqO_v.c7cgvv3hWqc_DG_bV1N nnqlwH5frVg-- X-Sonic-MF: X-Sonic-ID: 47ee7648-86a6-41c0-aa0b-47c80ff043f8 Received: from sonic.gate.mail.ne1.yahoo.com by sonic304.consmr.mail.gq1.yahoo.com with HTTP; Wed, 19 Nov 2025 00:29:26 +0000 Received: by hermes--production-gq1-67d9c848cc-c9zv9 (Yahoo Inc. Hermes SMTP Server) with ESMTPA ID 7bc963dadc66a5aa550c80f452865f11; Wed, 19 Nov 2025 00:29:19 +0000 (UTC) From: Mark Millard Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@FreeBSD.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3826.700.81\)) Subject: Re: Still seeing Failed assertion: "p[i] == 0" on armv7 buildworld [Notes from another example core dump: #1] Date: Tue, 18 Nov 2025 16:29:08 -0800 References: <4957be52-e57f-4f5f-9626-d0f706480fe1@FreeBSD.org> <87ldkai9lu.fsf@panix.com> <877bvthymv.fsf@panix.com> <13E753F4-84F8-4ADB-96B6-908897D6971C@yahoo.com> <3174F751-9853-4697-B0C0-98B54518A69F@yahoo.com> To: freebsd-arm@freebsd.org, freebsd-current@freebsd.org In-Reply-To: Message-Id: X-Mailer: Apple Mail (2.3826.700.81) X-Spamd-Bar: --- X-Spamd-Result: default: False [-3.48 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; DMARC_POLICY_ALLOW(-0.50)[yahoo.com,reject]; NEURAL_HAM_SHORT(-0.48)[-0.479]; R_SPF_ALLOW(-0.20)[+ptr:yahoo.com]; R_DKIM_ALLOW(-0.20)[yahoo.com:s=s2048]; MIME_GOOD(-0.10)[text/plain]; RCVD_TLS_LAST(0.00)[]; RCPT_COUNT_TWO(0.00)[2]; ARC_NA(0.00)[]; DWL_DNSWL_NONE(0.00)[yahoo.com:dkim]; DKIM_TRACE(0.00)[yahoo.com:+]; FREEMAIL_FROM(0.00)[yahoo.com]; MIME_TRACE(0.00)[0:+]; FROM_HAS_DN(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FREEMAIL_ENVFROM(0.00)[yahoo.com]; TO_DN_NONE(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; FROM_EQ_ENVFROM(0.00)[]; ASN(0.00)[asn:36647, ipnet:98.137.64.0/20, country:US]; TO_MATCH_ENVRCPT_SOME(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; MLMMJ_DEST(0.00)[freebsd-current@freebsd.org]; RWL_MAILSPIKE_POSSIBLE(0.00)[98.137.68.206:from]; APPLE_MAILER_COMMON(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[98.137.68.206:from] X-Rspamd-Queue-Id: 4dB2RY4ygzz46RW I'm only sending notes from testing of how similar other failures appear to the 2 lists. Folks can ask that I do otherwise for them if they want. This one is for size 4096 (1 page). It looks like #0..#15 are similar to the original report but #16 is not. #15 is for: arena_malloc (gdb) bt #0 thr_kill () at thr_kill.S:4 #1 0x2a08ef24 in __raise (s=3D6) at /usr/src/lib/libc/gen/raise.c:48 #2 0x2a145f38 in abort () at /usr/src/lib/libc/stdlib/abort.c:61 #3 0x2a196128 in ehooks_debug_zero_check (addr=3Daddr@entry=3D0x2a80d000,= size=3Dsize@entry=3D4096) at = /usr/src/contrib/jemalloc/include/jemalloc/internal/ehooks.h:170 #4 0x2a191f60 in ehooks_alloc (tsdn=3D0x2a2e4060, ehooks=3D0x2a600080, = new_addr=3D0x0, size=3D, alignment=3D4096, = zero=3D0xffff7b87, commit=3D) at /usr/src/contrib/jemalloc/include/jemalloc/internal/ehooks.h:208 #5 __je_extent_alloc_wrapper (tsdn=3Dtsdn@entry=3D0x2a2e4060, = pac=3D0x2a601810, ehooks=3D, new_addr=3D, = size=3D4096, alignment=3D4096, zero=3Dtrue, commit=3D0xffff7be7,=20 growing_retained=3D) at jemalloc_extent.c:1003 #6 0x2a1916e0 in __je_ecache_alloc_grow (tsdn=3D, = tsdn@entry=3D0x2a2e4060, pac=3Dpac@entry=3D0x2a601810, = ehooks=3Dehooks@entry=3D0x2a600080, ecache=3D, = ecache@entry=3D0x2a603dd0,=20 expand_edata=3D0x0, size=3D4096, alignment=3D4096, zero=3D, guarded=3D) at jemalloc_extent.c:126 #7 0x2a1c9680 in pac_alloc_real (tsdn=3D0x2a2e4060, pac=3D0x2a601810, = ehooks=3D0x2a600080, size=3D4096, alignment=3D4096, zero=3D, guarded=3Dfalse) at jemalloc_pac.c:124 #8 pac_alloc_impl (tsdn=3Dtsdn@entry=3D0x2a2e4060, self=3D0x2a601810, = size=3Dsize@entry=3D4096, alignment=3D4096, zero=3D, = guarded=3Dfalse, frequent_reuse=3D,=20 deferred_work_generated=3D) at jemalloc_pac.c:178 #9 0x2a1c7ae8 in pai_alloc (tsdn=3D0x2a2e4060, self=3D0x0, size=3D4096, = alignment=3D2147483615, zero=3D, guarded=3Dfalse, = frequent_reuse=3Dtrue, deferred_work_generated=3D) at /usr/src/contrib/jemalloc/include/jemalloc/internal/pai.h:43 #10 __je_pa_alloc (tsdn=3Dtsdn@entry=3D0x2a2e4060, = shard=3Dshard@entry=3D0x2a601800, size=3D4096, alignment=3D, slab=3Dtrue, szind=3D1, zero=3D, guarded=3Dfalse,=20= deferred_work_generated=3D0xffff7caf) at jemalloc_pa.c:139 #11 0x2a16b9f8 in arena_slab_alloc (tsdn=3Dtsdn@entry=3D0x2a2e4060, = arena=3D0x2a600540, binind=3D1, binshard=3D0, bin_info=3D0x2a21fa8c = <__je_bin_infos+48>) at jemalloc_arena.c:839 #12 0x2a16ac98 in __je_arena_cache_bin_fill_small (tsdn=3D0x2a2e4060, = arena=3D0x2a600540, cache_bin=3Dcache_bin@entry=3D0x2a2e42e8, = cache_bin_info=3D0x2a6004c2, binind=3D1, nfill=3D100) at = jemalloc_arena.c:1034 #13 0x2a1b5694 in __je_tcache_alloc_small_hard (tsdn=3D0x0, = tsdn@entry=3D0x2a2e4060, arena=3D0x0, arena@entry=3D0x2a600540, = tcache=3Dtcache@entry=3D0x2a2e42c8, = cache_bin=3Dcache_bin@entry=3D0x2a2e42e8, binind=3D1,=20 tcache_success=3D0xffff7d5f) at jemalloc_tcache.c:238 #14 0x2a15e538 in tcache_alloc_small (tsd=3D0x2a2e4060, = arena=3D0x2a600540, tcache=3D0x2a2e42c8, size=3D16, binind=3D1, = zero=3Dfalse, slow_path=3D) at = /usr/src/contrib/jemalloc/include/jemalloc/internal/tcache_inlines.h:68 #15 arena_malloc (tsdn=3D, arena=3D, = size=3D, ind=3D, zero=3D, = tcache=3D, slow_path=3D) at = /usr/src/contrib/jemalloc/include/jemalloc/internal/arena_inlines_b.h:151 #16 iallocztm (tsdn=3Dtsdn@entry=3D0x2a2e4060, size=3D, = size@entry=3D16, ind=3Dind@entry=3D1, zero=3Dfalse, tcache=3D0x2a2e42c8, = is_internal=3Dfalse, arena=3D0x0, slow_path=3D) at = /usr/src/contrib/jemalloc/include/jemalloc/internal/jemalloc_internal_inli= nes_c.h:55 #17 0x2a164df4 in imalloc_no_sample (sopts=3D0xffff7dfc, = dopts=3D0xffff7ddc, tsd=3D0x2a2e4060, size=3D16, usize=3D16, = ind=3D) at jemalloc_jemalloc.c:2402 #18 imalloc_body (sopts=3D0xffff7dfc, dopts=3D0xffff7ddc, = tsd=3D0x2a2e4060) at jemalloc_jemalloc.c:2577 #19 0x2a156188 in imalloc (sopts=3Dsopts@entry=3D0xffff7dfc, = dopts=3D, dopts@entry=3D0xffff7ddc) at = jemalloc_jemalloc.c:2693 #20 0x2a156000 in __je_malloc_default (size=3D16) at = jemalloc_jemalloc.c:2726 #21 0x29e61990 in operator_new_impl (size=3D16) at = /usr/src/contrib/llvm-project/libcxx/src/new.cpp:34 #22 operator new (size=3D) at = /usr/src/contrib/llvm-project/libcxx/src/new.cpp:47 #23 0x27e101d0 in __libcpp_operator_new () at = /usr/obj/usr/src/arm.armv7/tmp/usr/include/c++/v1/new:265 #24 __libcpp_allocate () at = /usr/obj/usr/src/arm.armv7/tmp/usr/include/c++/v1/new:289 #25 allocate () at = /usr/obj/usr/src/arm.armv7/tmp/usr/include/c++/v1/__memory/allocator.h:118= #26 __allocate_at_least > () at = /usr/obj/usr/src/arm.armv7/tmp/usr/include/c++/v1/__memory/allocate_at_lea= st.h:41 #27 __init () at = /usr/obj/usr/src/arm.armv7/tmp/usr/include/c++/v1/string:2336 #28 basic_string () at = /usr/obj/usr/src/arm.armv7/tmp/usr/include/c++/v1/string:1078 #29 str () at = /usr/src/contrib/llvm-project/llvm/include/llvm/ADT/StringRef.h:217 #30 str () at = /usr/src/contrib/llvm-project/llvm/lib/Support/Twine.cpp:29 #31 0x294076d0 in SetNamePrefix () at = /usr/src/contrib/llvm-project/llvm/lib/Transforms/Scalar/SROA.cpp:502 #32 visit () at = /usr/src/contrib/llvm-project/llvm/lib/Transforms/Scalar/SROA.cpp:2734 #33 0x293f4938 in rewritePartition () at = /usr/src/contrib/llvm-project/llvm/lib/Transforms/Scalar/SROA.cpp:4893 #34 splitAlloca () at = /usr/src/contrib/llvm-project/llvm/lib/Transforms/Scalar/SROA.cpp:5284 #35 0x293f04ec in runOnAlloca () at = /usr/src/contrib/llvm-project/llvm/lib/Transforms/Scalar/SROA.cpp:5485 #36 0x293ebfc0 in runSROA () at = /usr/src/contrib/llvm-project/llvm/lib/Transforms/Scalar/SROA.cpp:5596 #37 0x293eba80 in run () at = /usr/src/contrib/llvm-project/llvm/lib/Transforms/Scalar/SROA.cpp:5637 #38 0x27b9b32c in llvm::detail::PassModel>::run(llvm::Function&, = llvm::AnalysisManager&) () at = /usr/src/contrib/llvm-project/llvm/include/llvm/IR/PassManagerInternal.h:9= 0 #39 0x276eef80 in run () at = /usr/src/contrib/llvm-project/llvm/include/llvm/IR/PassManagerImpl.h:81 #40 0x2217fd38 in llvm::detail::PassModel>, = llvm::AnalysisManager>::run(llvm::Function&, = llvm::AnalysisManager&) () at = /usr/src/contrib/llvm-project/llvm/include/llvm/IR/PassManagerInternal.h:9= 0 #41 0x276f30e4 in run () at = /usr/src/contrib/llvm-project/llvm/lib/IR/PassManager.cpp:124 #42 0x22178b88 in llvm::detail::PassModel>::run(llvm::Module&, = llvm::AnalysisManager&) () at = /usr/src/contrib/llvm-project/llvm/include/llvm/IR/PassManagerInternal.h:9= 0 #43 0x276ee244 in run () at = /usr/src/contrib/llvm-project/llvm/include/llvm/IR/PassManagerImpl.h:81 #44 0x22174ffc in RunOptimizationPipeline () at = /usr/src/contrib/llvm-project/clang/lib/CodeGen/BackendUtil.cpp:1114 #45 0x2216cfb8 in EmitAssembly () at = /usr/src/contrib/llvm-project/clang/lib/CodeGen/BackendUtil.cpp:1179 --Type for more, q to quit, c to continue without paging-- #46 EmitBackendOutput () at = /usr/src/contrib/llvm-project/clang/lib/CodeGen/BackendUtil.cpp:1341 #47 0x225cbca0 in HandleTranslationUnit () at = /usr/src/contrib/llvm-project/clang/lib/CodeGen/CodeGenAction.cpp:354 #48 0x22cff8e4 in ParseAST () at = /usr/src/contrib/llvm-project/clang/lib/Parse/ParseAST.cpp:184 #49 0x22b5a7b8 in Execute () at = /usr/src/contrib/llvm-project/clang/lib/Frontend/FrontendAction.cpp:1078 #50 0x22adb800 in ExecuteAction () at = /usr/src/contrib/llvm-project/clang/lib/Frontend/CompilerInstance.cpp:1061= #51 0x22bf6a90 in ExecuteCompilerInvocation () at = /usr/src/contrib/llvm-project/clang/lib/FrontendTool/ExecuteCompilerInvoca= tion.cpp:280 #52 0x0002afc8 in cc1_main () at = /usr/src/contrib/llvm-project/clang/tools/driver/cc1_main.cpp:284 #53 0x00038548 in ExecuteCC1Tool () at = /usr/src/contrib/llvm-project/clang/tools/driver/driver.cpp:215 #54 0x227877ec in operator() () at = /usr/src/contrib/llvm-project/llvm/include/llvm/ADT/STLFunctionalExtras.h:= 68 #55 operator() () at = /usr/src/contrib/llvm-project/clang/lib/Driver/Job.cpp:440 #56 callback_fn<(lambda at = /usr/src/contrib/llvm-project/clang/lib/Driver/Job.cpp:440:22)>(void) () = at = /usr/src/contrib/llvm-project/llvm/include/llvm/ADT/STLFunctionalExtras.h:= 45 #57 0x27d88624 in operator() () at = /usr/src/contrib/llvm-project/llvm/include/llvm/ADT/STLFunctionalExtras.h:= 68 #58 RunSafely () at = /usr/src/contrib/llvm-project/llvm/lib/Support/CrashRecoveryContext.cpp:42= 6 #59 0x22786e90 in Execute () at = /usr/src/contrib/llvm-project/clang/lib/Driver/Job.cpp:440 #60 0x22748074 in ExecuteCommand () at = /usr/src/contrib/llvm-project/clang/lib/Driver/Compilation.cpp:199 #61 0x227483d0 in ExecuteJobs () at = /usr/src/contrib/llvm-project/clang/lib/Driver/Compilation.cpp:253 #62 0x22765bb8 in ExecuteCompilation () at = /usr/src/contrib/llvm-project/clang/lib/Driver/Driver.cpp:1943 #63 0x00037ba4 in clang_main () at = /usr/src/contrib/llvm-project/clang/tools/driver/driver.cpp:391 #64 0x000363a8 in main () at = /usr/src/usr.bin/clang/clang/clang-driver.cpp:17 0x2a80cfd0: 0x000013f2 0x00000079 0xffffffff = 0xa5a5a5a5 0x2a80cfe0: 0xffffffff 0xa5a5a5a5 0xffffffff = 0xa5a5a5a5 0x2a80cff0: 0x000014a6 0x00000079 0xffffffff = 0xa5a5a5a5 (gdb) x /1024x (size_t*)addr 0x2a80d000: 0x5a5a5a5a 0x5a5a5a5a 0x5a5a5a5a = 0x5a5a5a5a 0x2a80d010: 0x5a5a5a5a 0x5a5a5a5a 0x5a5a5a5a = 0x5a5a5a5a 0x2a80d020: 0x5a5a5a5a 0x5a5a5a5a 0x5a5a5a5a = 0x5a5a5a5a . . . 0x2a80dfd0: 0x5a5a5a5a 0x5a5a5a5a 0x5a5a5a5a = 0x5a5a5a5a 0x2a80dfe0: 0x5a5a5a5a 0x5a5a5a5a 0x5a5a5a5a = 0x5a5a5a5a 0x2a80dff0: 0x5a5a5a5a 0x5a5a5a5a 0x5a5a5a5a = 0x5a5a5a5a (gdb) x /1024x ((size_t*)addr)+1024 0x2a80e000: 0x00000051 0x00000002 0x29e862b8 = 0xa5a5a5a5 0x2a80e010: 0x7273752f 0x6372732f 0x766e692d = 0x69747365 0x2a80e020: 0x69746167 0x6c2f6e6f 0x632f6269 = 0x676e616c 0x2a80e030: 0x636e692f 0x6564756c 0x745f5f2f = 0x5f657079 So: All of the page was 0x5a5a5a5a repeated. Before and after had some other values and were accessible. =3D=3D=3D Mark Millard marklmi at yahoo.com