Date: Thu, 21 Jul 2022 23:18:56 +0000 From: bugzilla-noreply@freebsd.org To: java@FreeBSD.org Subject: [Bug 265284] java/openjdk11: wont run or build running on VMWare on M1 Mac Mini (aarch64) Message-ID: <bug-265284-8522-fBA12tdQfX@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-265284-8522@https.bugs.freebsd.org/bugzilla/> References: <bug-265284-8522@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D265284 --- Comment #8 from Miguel Arroz <arroz@me.com> --- So we confirmed this crashes on code generated by the JIT compiler: The output of the following command when running java: > dtrace -n 'inline string process =3D "java"; ::mmap:entry /execname =3D= =3D process && (arg2 & 0x7) =3D=3D 0x7/ { this->follow=3D1; printf("addr=3D= %p size=3D%p prot=3D%p", arg0, arg1, arg2) } ::mmap:return /this->follow/ {= this->follow =3D 0; printf("addr=3D%p", arg0) }' is: CPU ID FUNCTION:NAME 1 54289 mmap:entry addr=3D7607c2687000 size=3D2700= 00 prot=3D7 1 54290 mmap:return addr=3Dffffffffc2687000 1 54289 mmap:entry addr=3D7607c2c16000 size=3D2700= 00 prot=3D7 1 54290 mmap:return addr=3Dffffffffc2c16000 1 54289 mmap:entry addr=3D7607ca14e000 size=3D2700= 00 prot=3D7 1 54290 mmap:return addr=3Dffffffffca14e000 I was running java in lldb, and the address where it crashed is inside the first block: -> 0x7607c26ce190: mov x0, #0x43c We also confirmed the dtrace is similar in the seldom occasions where "java" runs successfully. Not exactly sure what this proves aside from the fact the crash happens in generated code. I'm trying to find more info regarding how does W^X protect= ion in M1s work under hypervisors but it's not easy to find anything about that. --=20 You are receiving this mail because: You are the assignee for the bug.=
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