arm32 builds continue to fail for me after 8253540 and 8253901
David Holmes
david.holmes at oracle.com
Wed Oct 14 21:55:44 UTC 2020
On 15/10/2020 3:56 am, Marc Hoffmann wrote:
> Hi Boris,
>
> I’m not familiar with the hotspot codebase at all. But the assertions in InterpreterMacroAssembler::unlock_object (https://github.com/openjdk/jdk/blob/master/src/hotspot/cpu/arm/interp_masm_arm.cpp#L989) look contradictory to me:
>
> assert(Rlock == R0, "the first argument");
>
> but then we assert that Rlock and R0 is different:
>
> assert_different_registers(Robj, Rmark, Rlock, R0, Rtemp);
>
> That code was not changed in 8253540. Maybe it was not called at all before the change?
This change:
https://github.com/openjdk/jdk/commit/fd0cb98ed03c6214c02ccd3503c1e6d77065a428
for 8253901, modified the assert to use R0 instead of R1 and so
introduced the problem AFAICS.
The comments were not updated either:
// Argument: R1: Points to BasicObjectLock structure for lock
// Throw an IllegalMonitorException if object is not locked by current
thread
// Blows volatile registers R0-R3, Rtemp, LR. Calls VM.
void InterpreterMacroAssembler::unlock_object(Register Rlock) {
assert(Rlock == R1, "the second argument");
David
-----
> Regards,
> -marc
>
>
>
>> On 13. Oct 2020, at 08:48, Boris Ulasevich <boris.ulasevich at bell-sw.com> wrote:
>>
>> Hi Marc,
>>
>> I created JDK-8254661 for the issue. I would love to fix it, but still
>> can't reproduce the crash (even on Raspberry Pi).
>> What configuration do you have? The following sequence works Ok for me:
>> pi at raspberrypi $ git clone https://github.com/openjdk/jdk
>> pi at raspberrypi $ cd jdk
>> pi at raspberrypi $ bash configure --with-boot-jdk=/home/pi/jdk-15
>> pi at raspberrypi $ make
>>
>> Your debug build shows that I did not fix the
>> assert_different_registers in
>> InterpreterMacroAssembler::unlock_object()
>> body (and the function comment by the way!), though with eyeballing I
>> do not see what is wrong for Rlock=R0:
>> https://github.com/openjdk/jdk/blob/master/src/hotspot/cpu/arm/interp_masm_arm.cpp#L1000
>>
>> regards,
>> Boris
>>
>> On Mon, Oct 12, 2020 at 11:34 PM Marc Hoffmann
>> <hoffmann at mountainminds.com> wrote:
>>>
>>> Hi Aleksey, hi Boris,
>>>
>>> for me the crash is always reproducible: Every single build after
>>>
>>> 77a0f3999afa322b64643afd4a161164440af975 8253540: InterpreterRuntime::monitorexit should be a JRT_LEAF function
>>>
>>> fails on arm32 (build on ubuntu in docker on a raspberry pi 4). Before this commit I haven’t encountered any failures.
>>>
>>> Here is the hs_err file with —enable-debug (reproduced with current master c7f00640627eab38b77d23d07876cf0247fa18f3).
>>>
>>> Cheers,
>>> -marc
>>>
>>>
>>> #
>>> # A fatal error has been detected by the Java Runtime Environment:
>>> #
>>> # Internal Error (/workspace/src/hotspot/share/asm/register.hpp:160), pid=14700, tid=14705
>>> # assert(a != b && a != c && a != d && a != e && b != c && b != d && b != e && c != d && c != e && d != e) failed: registers must be different: a=0x00000002, b=0x00000003, c=0x00000000, d=0x00000000, e=0x0000000c
>>> #
>>> # JRE version: (16.0) (fastdebug build )
>>> # Java VM: OpenJDK Server VM (fastdebug 16-internal+0-adhoc..workspace, mixed mode, g1 gc, linux-arm)
>>> # Problematic frame:
>>> # V [libjvm.so+0x7571fc] InterpreterMacroAssembler::unlock_object(RegisterImpl*) [clone .part.34]+0x63
>>> #
>>> # Core dump will be written. Default location: /workspace/make/core
>>> #
>>> #
>>>
>>> --------------- S U M M A R Y ------------
>>>
>>> Command Line: -Xms64M -Xmx768M --add-exports=java.base/jdk.internal.module=ALL-UNNAMED build.tools.jigsaw.AddPackagesAttribute /workspace/build/linux-arm-server-fastdebug/jdk
>>>
>>> Host: 20431585315d, rev 3 (v7l), 4 cores, 3G, Ubuntu 18.04.3 LTS
>>> Time: Mon Oct 12 20:22:15 2020 UTC elapsed time: 0.144243 seconds (0d 0h 0m 0s)
>>>
>>> --------------- T H R E A D ---------------
>>>
>>> Current thread (0xb5b16460): JavaThread "Unknown thread" [_thread_in_vm, id=14705, stack(0xb5c6e000,0xb5cbe000)]
>>>
>>> Stack: [0xb5c6e000,0xb5cbe000], sp=0xb5cbc2d0, free space=312k
>>> Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code)
>>> V [libjvm.so+0x7571fc] InterpreterMacroAssembler::unlock_object(RegisterImpl*) [clone .part.34]+0x63
>>>
>>> Registers:
>>> r0 = 0x00000003
>>> r1 = 0x000000a0
>>> r2 = 0x00000002
>>> r3 = 0x00000000
>>> r4 = 0xb5b168b0
>>> r5 = 0x0000000c
>>> r6 = 0x00000000
>>> r7 = 0xb5cbc2e8
>>> r8 = 0xb6db1fa8
>>> r9 = 0xb5cbc760
>>> r10 = 0xe3520000
>>> fp = 0xb6db1fa8
>>> r12 = 0xb6ff8000
>>> sp = 0xb5cbc2d0
>>> lr = 0x00000058
>>> pc = 0xb64961fc
>>> cpsr = 0x200f0030
>>>
>>> Top of Stack: (sp=0xb5cbc2d0)
>>> 0xb5cbc2d0: 00000002 00000003 00000000 00000000
>>> 0xb5cbc2e0: 0000000c 00000048 0000006e 00000000
>>> 0xb5cbc2f0: 00000000 00000000 00000000 0000007c
>>> 0xb5cbc300: 00000000 00000077 b5cbc378 00000000
>>> 0xb5cbc310: b5cbc380 0000000f b6db1fa8 b5cbc340
>>> 0xb5cbc320: b5b168b0 b6db1fa8 b5cbc4c4 b6008a2b
>>> 0xb5cbc330: b5cbc454 b5cbc348 0000000f b61971cf
>>> 0xb5cbc340: b5cbc380 b5cbc3b0 b5b168b0 b5cbc388
>>>
>>> Instructions: (pc=0xb64961fc)
>>> 0xb64960fc: 440be9c7 a034f8c7 f5e06139 68ebf7ed
>>> 0xb649610c: f040689a 46184164 1180f441 68996011
>>> 0xb649611c: f5e03104 4b12f781 46284622 1003f858
>>> 0xb649612c: f998f2e4 f64f68eb f2ce7210 6899122f
>>> 0xb649613c: 600a4618 31046899 f76ef5e0 46284631
>>> 0xb649614c: f4e6f69f f5e04630 f507f79b 46bd7786
>>> 0xb649615c: 8ff0e8bd 0091bfd0 00006ee4 000059d0
>>> 0xb649616c: 00007d1c 4a084b07 b480447b 589baf00
>>> 0xb649617c: b91b781b f85d46bd 47707b04 f85d46bd
>>> 0xb649618c: e7197b04 0091be30 00006a24 bf182900
>>> 0xb649619c: f1a1290c e92d0202 b0f34ff0 2301bf08
>>> 0xb64961ac: bf18af06 f8df2300 2a018268 461abf8c
>>> 0xb64961bc: 0201f043 f04f460e 44f833ff 30d0f8c7
>>> 0xb64961cc: f8c74604 23003140 333de9c7 30fcf887
>>> 0xb64961dc: 3359e9c7 316cf887 4a8eb1da 0e58f04f
>>> 0xb64961ec: 250c2003 1002f858 f8d12202 21a0c000
>>> 0xb64961fc: e000f88c 2000e9cd 6302e9cd 4b874a86
>>> 0xb649620c: 447a4887 9504447b f58f4478 f00cfaa3
>>> 0xb649621c: 68e2f2d5 4340f44f 33a0f2ce 0a04f04f
>>> 0xb649622c: 7980f04f 0b00f04f 46106891 600b2501
>>> 0xb649623c: 44516891 f6f0f5e0 4a7b497a 3001f858
>>> 0xb649624c: 0140f107 a048f8c7 4608643e f8c7681b
>>> 0xb649625c: 60fb904c f858647b f8c72002 f8c7b054
>>> 0xb649626c: 60bab058 e9c73208 653abb19 66fd607a
>>> 0xb649627c: f732f5e0 689a68e3 4164f040 f4414618
>>> 0xb649628c: 60111181 44516899 f6c6f5e0 0110f107
>>> 0xb649629c: 68fb687a f8c74608 623aa018 6304e9c7
>>> 0xb64962ac: 901cf8c7 bb09e9c7 bb0de9c7 f5e063fd
>>> 0xb64962bc: 68e3f713 f0406899 46184264 4240f442
>>> 0xb64962cc: 6899600a f1074451 f5e00ad0 4b57f6a5
>>> 0xb64962dc: 3003f858 2b00781b 8093f040 f04f68bb
>>> 0xb64962ec: 68f97c80 33082500 c0acf8c7 0b01f04f
>>>
>>>
>>>
>>> --------------- P R O C E S S ---------------
>>>
>>> uid : 0 euid : 0 gid : 0 egid : 0
>>>
>>> umask: 0022 (----w--w-)
>>>
>>> Threads class SMR info:
>>> _java_thread_list=0xb6e56078, length=0, elements={
>>> }
>>> _java_thread_list_alloc_cnt=1, _java_thread_list_free_cnt=0, _java_thread_list_max=0, _nested_thread_list_max=0
>>> _delete_lock_wait_cnt=0, _delete_lock_wait_max=0
>>> _to_delete_list_cnt=0, _to_delete_list_max=0
>>>
>>> Java Threads: ( => current thread )
>>>
>>> Other Threads:
>>> 0xb5b73188 GCTaskThread "GC Thread#0" [stack: 0x81d00000,0x81d80000] [id=14706]
>>> 0xb5b77dc0 ConcurrentGCThread "G1 Main Marker" [stack: 0x81c7e000,0x81cfe000] [id=14707]
>>> 0xb5b790c0 ConcurrentGCThread "G1 Conc#0" [stack: 0x81a80000,0x81b00000] [id=14708]
>>> 0xb5bde230 ConcurrentGCThread "G1 Refine#0" [stack: 0x81780000,0x81800000] [id=14709]
>>> 0xb5bdf488 ConcurrentGCThread "G1 Service" [stack: 0x81580000,0x81600000] [id=14710]
>>>
>>> =>0xb5b16460 (exited) JavaThread "Unknown thread" [_thread_in_vm, id=14705, stack(0xb5c6e000,0xb5cbe000)]
>>>
>>> Threads with active compile tasks:
>>>
>>> VM state: not at safepoint (not fully initialized)
>>>
>>> VM Mutex/Monitor currently owned by a thread: None
>>>
>>> GC Precious Log:
>>> CPUs: 4 total, 4 available
>>> Memory: 3827M
>>> Large Page Support: Disabled
>>> NUMA Support: Disabled
>>> Compressed Oops: Disabled
>>> Heap Region Size: 1M
>>> Heap Min Capacity: 64M
>>> Heap Initial Capacity: 64M
>>> Heap Max Capacity: 768M
>>> Pre-touch: Disabled
>>> Parallel Workers: 4
>>> Concurrent Workers: 1
>>> Concurrent Refinement Workers: 4
>>> Periodic GC: Disabled
>>>
>>> Heap:
>>> garbage-first heap total 65536K, used 0K [0x83a00000, 0xb3a00000)
>>> region size 1024K, 1 young (1024K), 0 survivors (0K)
>>> Metaspace used 944K, capacity 2200K, committed 2200K, reserved 4400K
>>>
>>> Heap Regions: E=young(eden), S=young(survivor), O=old, HS=humongous(starts), HC=humongous(continues), CS=collection set, F=free, OA=open archive, CA=closed archive, TAMS=top-at-mark-start (previous, next)
>>> | 0|0x83a00000, 0x83a00000, 0x83b00000| 0%| F| |TAMS 0x83a00000, 0x83a00000| Untracked
>>> | 1|0x83b00000, 0x83b00000, 0x83c00000| 0%| F| |TAMS 0x83b00000, 0x83b00000| Untracked
>>> | 2|0x83c00000, 0x83c00000, 0x83d00000| 0%| F| |TAMS 0x83c00000, 0x83c00000| Untracked
>>> | 3|0x83d00000, 0x83d00000, 0x83e00000| 0%| F| |TAMS 0x83d00000, 0x83d00000| Untracked
>>> | 4|0x83e00000, 0x83e00000, 0x83f00000| 0%| F| |TAMS 0x83e00000, 0x83e00000| Untracked
>>> | 5|0x83f00000, 0x83f00000, 0x84000000| 0%| F| |TAMS 0x83f00000, 0x83f00000| Untracked
>>> | 6|0x84000000, 0x84000000, 0x84100000| 0%| F| |TAMS 0x84000000, 0x84000000| Untracked
>>> | 7|0x84100000, 0x84100000, 0x84200000| 0%| F| |TAMS 0x84100000, 0x84100000| Untracked
>>> | 8|0x84200000, 0x84200000, 0x84300000| 0%| F| |TAMS 0x84200000, 0x84200000| Untracked
>>> | 9|0x84300000, 0x84300000, 0x84400000| 0%| F| |TAMS 0x84300000, 0x84300000| Untracked
>>> | 10|0x84400000, 0x84400000, 0x84500000| 0%| F| |TAMS 0x84400000, 0x84400000| Untracked
>>> | 11|0x84500000, 0x84500000, 0x84600000| 0%| F| |TAMS 0x84500000, 0x84500000| Untracked
>>> | 12|0x84600000, 0x84600000, 0x84700000| 0%| F| |TAMS 0x84600000, 0x84600000| Untracked
>>> | 13|0x84700000, 0x84700000, 0x84800000| 0%| F| |TAMS 0x84700000, 0x84700000| Untracked
>>> | 14|0x84800000, 0x84800000, 0x84900000| 0%| F| |TAMS 0x84800000, 0x84800000| Untracked
>>> | 15|0x84900000, 0x84900000, 0x84a00000| 0%| F| |TAMS 0x84900000, 0x84900000| Untracked
>>> | 16|0x84a00000, 0x84a00000, 0x84b00000| 0%| F| |TAMS 0x84a00000, 0x84a00000| Untracked
>>> | 17|0x84b00000, 0x84b00000, 0x84c00000| 0%| F| |TAMS 0x84b00000, 0x84b00000| Untracked
>>> | 18|0x84c00000, 0x84c00000, 0x84d00000| 0%| F| |TAMS 0x84c00000, 0x84c00000| Untracked
>>> | 19|0x84d00000, 0x84d00000, 0x84e00000| 0%| F| |TAMS 0x84d00000, 0x84d00000| Untracked
>>> | 20|0x84e00000, 0x84e00000, 0x84f00000| 0%| F| |TAMS 0x84e00000, 0x84e00000| Untracked
>>> | 21|0x84f00000, 0x84f00000, 0x85000000| 0%| F| |TAMS 0x84f00000, 0x84f00000| Untracked
>>> | 22|0x85000000, 0x85000000, 0x85100000| 0%| F| |TAMS 0x85000000, 0x85000000| Untracked
>>> | 23|0x85100000, 0x85100000, 0x85200000| 0%| F| |TAMS 0x85100000, 0x85100000| Untracked
>>> | 24|0x85200000, 0x85200000, 0x85300000| 0%| F| |TAMS 0x85200000, 0x85200000| Untracked
>>> | 25|0x85300000, 0x85300000, 0x85400000| 0%| F| |TAMS 0x85300000, 0x85300000| Untracked
>>> | 26|0x85400000, 0x85400000, 0x85500000| 0%| F| |TAMS 0x85400000, 0x85400000| Untracked
>>> | 27|0x85500000, 0x85500000, 0x85600000| 0%| F| |TAMS 0x85500000, 0x85500000| Untracked
>>> | 28|0x85600000, 0x85600000, 0x85700000| 0%| F| |TAMS 0x85600000, 0x85600000| Untracked
>>> | 29|0x85700000, 0x85700000, 0x85800000| 0%| F| |TAMS 0x85700000, 0x85700000| Untracked
>>> | 30|0x85800000, 0x85800000, 0x85900000| 0%| F| |TAMS 0x85800000, 0x85800000| Untracked
>>> | 31|0x85900000, 0x85900000, 0x85a00000| 0%| F| |TAMS 0x85900000, 0x85900000| Untracked
>>> | 32|0x85a00000, 0x85a00000, 0x85b00000| 0%| F| |TAMS 0x85a00000, 0x85a00000| Untracked
>>> | 33|0x85b00000, 0x85b00000, 0x85c00000| 0%| F| |TAMS 0x85b00000, 0x85b00000| Untracked
>>> | 34|0x85c00000, 0x85c00000, 0x85d00000| 0%| F| |TAMS 0x85c00000, 0x85c00000| Untracked
>>> | 35|0x85d00000, 0x85d00000, 0x85e00000| 0%| F| |TAMS 0x85d00000, 0x85d00000| Untracked
>>> | 36|0x85e00000, 0x85e00000, 0x85f00000| 0%| F| |TAMS 0x85e00000, 0x85e00000| Untracked
>>> | 37|0x85f00000, 0x85f00000, 0x86000000| 0%| F| |TAMS 0x85f00000, 0x85f00000| Untracked
>>> | 38|0x86000000, 0x86000000, 0x86100000| 0%| F| |TAMS 0x86000000, 0x86000000| Untracked
>>> | 39|0x86100000, 0x86100000, 0x86200000| 0%| F| |TAMS 0x86100000, 0x86100000| Untracked
>>> | 40|0x86200000, 0x86200000, 0x86300000| 0%| F| |TAMS 0x86200000, 0x86200000| Untracked
>>> | 41|0x86300000, 0x86300000, 0x86400000| 0%| F| |TAMS 0x86300000, 0x86300000| Untracked
>>> | 42|0x86400000, 0x86400000, 0x86500000| 0%| F| |TAMS 0x86400000, 0x86400000| Untracked
>>> | 43|0x86500000, 0x86500000, 0x86600000| 0%| F| |TAMS 0x86500000, 0x86500000| Untracked
>>> | 44|0x86600000, 0x86600000, 0x86700000| 0%| F| |TAMS 0x86600000, 0x86600000| Untracked
>>> | 45|0x86700000, 0x86700000, 0x86800000| 0%| F| |TAMS 0x86700000, 0x86700000| Untracked
>>> | 46|0x86800000, 0x86800000, 0x86900000| 0%| F| |TAMS 0x86800000, 0x86800000| Untracked
>>> | 47|0x86900000, 0x86900000, 0x86a00000| 0%| F| |TAMS 0x86900000, 0x86900000| Untracked
>>> | 48|0x86a00000, 0x86a00000, 0x86b00000| 0%| F| |TAMS 0x86a00000, 0x86a00000| Untracked
>>> | 49|0x86b00000, 0x86b00000, 0x86c00000| 0%| F| |TAMS 0x86b00000, 0x86b00000| Untracked
>>> | 50|0x86c00000, 0x86c00000, 0x86d00000| 0%| F| |TAMS 0x86c00000, 0x86c00000| Untracked
>>> | 51|0x86d00000, 0x86d00000, 0x86e00000| 0%| F| |TAMS 0x86d00000, 0x86d00000| Untracked
>>> | 52|0x86e00000, 0x86e00000, 0x86f00000| 0%| F| |TAMS 0x86e00000, 0x86e00000| Untracked
>>> | 53|0x86f00000, 0x86f00000, 0x87000000| 0%| F| |TAMS 0x86f00000, 0x86f00000| Untracked
>>> | 54|0x87000000, 0x87000000, 0x87100000| 0%| F| |TAMS 0x87000000, 0x87000000| Untracked
>>> | 55|0x87100000, 0x87100000, 0x87200000| 0%| F| |TAMS 0x87100000, 0x87100000| Untracked
>>> | 56|0x87200000, 0x87200000, 0x87300000| 0%| F| |TAMS 0x87200000, 0x87200000| Untracked
>>> | 57|0x87300000, 0x87300000, 0x87400000| 0%| F| |TAMS 0x87300000, 0x87300000| Untracked
>>> | 58|0x87400000, 0x87400000, 0x87500000| 0%| F| |TAMS 0x87400000, 0x87400000| Untracked
>>> | 59|0x87500000, 0x87500000, 0x87600000| 0%| F| |TAMS 0x87500000, 0x87500000| Untracked
>>> | 60|0x87600000, 0x87600000, 0x87700000| 0%| F| |TAMS 0x87600000, 0x87600000| Untracked
>>> | 61|0x87700000, 0x87700000, 0x87800000| 0%| F| |TAMS 0x87700000, 0x87700000| Untracked
>>> | 62|0x87800000, 0x87800000, 0x87900000| 0%| F| |TAMS 0x87800000, 0x87800000| Untracked
>>> | 63|0x87900000, 0x87942908, 0x87a00000| 26%| E| |TAMS 0x87900000, 0x87900000| Complete
>>>
>>> Card table byte_map: [0x83700000,0x83880000] _byte_map_base: 0x832e3000
>>>
>>> Marking Bits (Prev, Next): (CMBitMap*) 0xb5b74324, (CMBitMap*) 0xb5b74344
>>> Prev Bits: [0x82980000, 0x83580000)
>>> Next Bits: [0x81d80000, 0x82980000)
>>>
>>> GC Heap History (0 events):
>>> No events
>>>
>>> Deoptimization events (0 events):
>>> No events
>>>
>>> Classes unloaded (0 events):
>>> No events
>>>
>>> Classes redefined (0 events):
>>> No events
>>>
>>> Internal exceptions (0 events):
>>> No events
>>>
>>> Events (20 events):
>>> Event: 0.113 loading class java/lang/Character
>>> Event: 0.114 loading class java/lang/Character done
>>> Event: 0.114 loading class java/lang/Float
>>> Event: 0.115 loading class java/lang/Number
>>> Event: 0.115 loading class java/lang/Number done
>>> Event: 0.115 loading class java/lang/Float done
>>> Event: 0.115 loading class java/lang/Double
>>> Event: 0.116 loading class java/lang/Double done
>>> Event: 0.116 loading class java/lang/Byte
>>> Event: 0.116 loading class java/lang/Byte done
>>> Event: 0.116 loading class java/lang/Short
>>> Event: 0.117 loading class java/lang/Short done
>>> Event: 0.117 loading class java/lang/Integer
>>> Event: 0.118 loading class java/lang/Integer done
>>> Event: 0.118 loading class java/lang/Long
>>> Event: 0.119 loading class java/lang/Long done
>>> Event: 0.119 loading class java/util/Iterator
>>> Event: 0.119 loading class java/util/Iterator done
>>> Event: 0.119 loading class java/lang/reflect/RecordComponent
>>> Event: 0.119 loading class java/lang/reflect/RecordComponent done
>>>
>>>
>>> Dynamic libraries:
>>> 00410000-00411000 r-xp 00000000 b3:02 677726 /workspace/build/linux-arm-server-fastdebug/jdk/bin/java
>>> 00420000-00421000 r--p 00000000 b3:02 677726 /workspace/build/linux-arm-server-fastdebug/jdk/bin/java
>>> 00421000-00422000 rw-p 00001000 b3:02 677726 /workspace/build/linux-arm-server-fastdebug/jdk/bin/java
>>> 019b6000-019d7000 rw-p 00000000 00:00 0 [heap]
>>> 809c9000-80e00000 rw-p 00000000 00:00 0
>>> 80e00000-80e8e000 rw-p 00000000 00:00 0
>>> 80e8e000-80f00000 ---p 00000000 00:00 0
>>> 80fb4000-811da000 rw-p 00000000 00:00 0
>>> 811da000-81400000 ---p 00000000 00:00 0
>>> 81400000-81421000 rw-p 00000000 00:00 0
>>> 81421000-81500000 ---p 00000000 00:00 0
>>> 8157e000-8157f000 ---p 00000000 00:00 0
>>> 8157f000-81600000 rw-p 00000000 00:00 0
>>> 81600000-81621000 rw-p 00000000 00:00 0
>>> 81621000-81700000 ---p 00000000 00:00 0
>>> 8177e000-8177f000 ---p 00000000 00:00 0
>>> 8177f000-81800000 rw-p 00000000 00:00 0
>>> 81800000-81821000 rw-p 00000000 00:00 0
>>> 81821000-81900000 ---p 00000000 00:00 0
>>> 81900000-81921000 rw-p 00000000 00:00 0
>>> 81921000-81a00000 ---p 00000000 00:00 0
>>> 81a7e000-81a7f000 ---p 00000000 00:00 0
>>> 81a7f000-81b00000 rw-p 00000000 00:00 0
>>> 81b00000-81b21000 rw-p 00000000 00:00 0
>>> 81b21000-81c00000 ---p 00000000 00:00 0
>>> 81c21000-81c7c000 rw-p 00000000 00:00 0
>>> 81c7c000-81c7d000 ---p 00000000 00:00 0
>>> 81c7d000-81cfe000 rw-p 00000000 00:00 0
>>> 81cfe000-81cff000 ---p 00000000 00:00 0
>>> 81cff000-81e80000 rw-p 00000000 00:00 0
>>> 81e80000-82980000 ---p 00000000 00:00 0
>>> 82980000-82a80000 rw-p 00000000 00:00 0
>>> 82a80000-83580000 ---p 00000000 00:00 0
>>> 83580000-835a0000 rw-p 00000000 00:00 0
>>> 835a0000-83700000 ---p 00000000 00:00 0
>>> 83700000-83720000 rw-p 00000000 00:00 0
>>> 83720000-83880000 ---p 00000000 00:00 0
>>> 83880000-838a0000 rw-p 00000000 00:00 0
>>> 838a0000-83a00000 ---p 00000000 00:00 0
>>> 83a00000-87a00000 rw-p 00000000 00:00 0
>>> 87a00000-b3a00000 ---p 00000000 00:00 0
>>> b3a25000-b3a76000 rw-p 00000000 00:00 0
>>> b3a76000-b3ab3000 ---p 00000000 00:00 0
>>> b3ab3000-b3c33000 rwxp 00000000 00:00 0
>>> b3c33000-b5ab3000 ---p 00000000 00:00 0
>>> b5ab3000-b5ac8000 r-xp 00000000 b3:02 144091 /workspace/build/linux-arm-server-fastdebug/jdk/lib/libjava.so
>>> b5ac8000-b5ad8000 ---p 00015000 b3:02 144091 /workspace/build/linux-arm-server-fastdebug/jdk/lib/libjava.so
>>> b5ad8000-b5ad9000 r--p 00015000 b3:02 144091 /workspace/build/linux-arm-server-fastdebug/jdk/lib/libjava.so
>>> b5ad9000-b5ada000 rw-p 00016000 b3:02 144091 /workspace/build/linux-arm-server-fastdebug/jdk/lib/libjava.so
>>> b5ada000-b5ae2000 rw-s 00000000 b3:02 2576900 /tmp/hsperfdata_root/14700
>>> b5ae2000-b5ae9000 r-xp 00000000 b3:02 2708515 /lib/arm-linux-gnueabihf/libnss_files-2.27.so
>>> b5ae9000-b5af8000 ---p 00007000 b3:02 2708515 /lib/arm-linux-gnueabihf/libnss_files-2.27.so
>>> b5af8000-b5af9000 r--p 00006000 b3:02 2708515 /lib/arm-linux-gnueabihf/libnss_files-2.27.so
>>> b5af9000-b5afa000 rw-p 00007000 b3:02 2708515 /lib/arm-linux-gnueabihf/libnss_files-2.27.so
>>> b5afa000-b5b00000 rw-p 00000000 00:00 0
>>> b5b00000-b5c00000 rw-p 00000000 00:00 0
>>> b5c00000-b5c0d000 r-xp 00000000 b3:02 2708509 /lib/arm-linux-gnueabihf/libnsl-2.27.so
>>> b5c0d000-b5c1c000 ---p 0000d000 b3:02 2708509 /lib/arm-linux-gnueabihf/libnsl-2.27.so
>>> b5c1c000-b5c1d000 r--p 0000c000 b3:02 2708509 /lib/arm-linux-gnueabihf/libnsl-2.27.so
>>> b5c1d000-b5c1e000 rw-p 0000d000 b3:02 2708509 /lib/arm-linux-gnueabihf/libnsl-2.27.so
>>> b5c1e000-b5c20000 rw-p 00000000 00:00 0
>>> b5c20000-b5c27000 r-xp 00000000 b3:02 2708519 /lib/arm-linux-gnueabihf/libnss_nis-2.27.so
>>> b5c27000-b5c36000 ---p 00007000 b3:02 2708519 /lib/arm-linux-gnueabihf/libnss_nis-2.27.so
>>> b5c36000-b5c37000 r--p 00006000 b3:02 2708519 /lib/arm-linux-gnueabihf/libnss_nis-2.27.so
>>> b5c37000-b5c38000 rw-p 00007000 b3:02 2708519 /lib/arm-linux-gnueabihf/libnss_nis-2.27.so
>>> b5c38000-b5c3d000 r-xp 00000000 b3:02 2708511 /lib/arm-linux-gnueabihf/libnss_compat-2.27.so
>>> b5c3d000-b5c4c000 ---p 00005000 b3:02 2708511 /lib/arm-linux-gnueabihf/libnss_compat-2.27.so
>>> b5c4c000-b5c4d000 r--p 00004000 b3:02 2708511 /lib/arm-linux-gnueabihf/libnss_compat-2.27.so
>>> b5c4d000-b5c4e000 rw-p 00005000 b3:02 2708511 /lib/arm-linux-gnueabihf/libnss_compat-2.27.so
>>> b5c4e000-b5c5d000 r-xp 00000000 b3:02 144093 /workspace/build/linux-arm-server-fastdebug/jdk/lib/libjimage.so
>>> b5c5d000-b5c6c000 ---p 0000f000 b3:02 144093 /workspace/build/linux-arm-server-fastdebug/jdk/lib/libjimage.so
>>> b5c6c000-b5c6d000 r--p 0000e000 b3:02 144093 /workspace/build/linux-arm-server-fastdebug/jdk/lib/libjimage.so
>>> b5c6d000-b5c6e000 rw-p 0000f000 b3:02 144093 /workspace/build/linux-arm-server-fastdebug/jdk/lib/libjimage.so
>>> b5c6e000-b5c71000 ---p 00000000 00:00 0
>>> b5c71000-b5cbe000 rw-p 00000000 00:00 0
>>> b5cbe000-b5d2d000 r-xp 00000000 b3:02 2708506 /lib/arm-linux-gnueabihf/libm-2.27.so
>>> b5d2d000-b5d3d000 ---p 0006f000 b3:02 2708506 /lib/arm-linux-gnueabihf/libm-2.27.so
>>> b5d3d000-b5d3e000 r--p 0006f000 b3:02 2708506 /lib/arm-linux-gnueabihf/libm-2.27.so
>>> b5d3e000-b5d3f000 rw-p 00070000 b3:02 2708506 /lib/arm-linux-gnueabihf/libm-2.27.so
>>> b5d3f000-b6d56000 r-xp 00000000 b3:02 144078 /workspace/build/linux-arm-server-fastdebug/jdk/lib/server/libjvm.so
>>> b6d56000-b6d65000 ---p 01017000 b3:02 144078 /workspace/build/linux-arm-server-fastdebug/jdk/lib/server/libjvm.so
>>> b6d65000-b6dba000 r--p 01016000 b3:02 144078 /workspace/build/linux-arm-server-fastdebug/jdk/lib/server/libjvm.so
>>> b6dba000-b6dd2000 rw-p 0106b000 b3:02 144078 /workspace/build/linux-arm-server-fastdebug/jdk/lib/server/libjvm.so
>>> b6dd2000-b6e5e000 rw-p 00000000 00:00 0
>>> b6e5e000-b6e6f000 r-xp 00000000 b3:02 2708524 /lib/arm-linux-gnueabihf/libpthread-2.27.so
>>> b6e6f000-b6e7f000 ---p 00011000 b3:02 2708524 /lib/arm-linux-gnueabihf/libpthread-2.27.so
>>> b6e7f000-b6e80000 r--p 00011000 b3:02 2708524 /lib/arm-linux-gnueabihf/libpthread-2.27.so
>>> b6e80000-b6e81000 rw-p 00012000 b3:02 2708524 /lib/arm-linux-gnueabihf/libpthread-2.27.so
>>> b6e81000-b6e83000 rw-p 00000000 00:00 0
>>> b6e83000-b6e85000 r-xp 00000000 b3:02 2708497 /lib/arm-linux-gnueabihf/libdl-2.27.so
>>> b6e85000-b6e94000 ---p 00002000 b3:02 2708497 /lib/arm-linux-gnueabihf/libdl-2.27.so
>>> b6e94000-b6e95000 r--p 00001000 b3:02 2708497 /lib/arm-linux-gnueabihf/libdl-2.27.so
>>> b6e95000-b6e96000 rw-p 00002000 b3:02 2708497 /lib/arm-linux-gnueabihf/libdl-2.27.so
>>> b6e96000-b6eaf000 r-xp 00000000 b3:02 1308274 /lib/arm-linux-gnueabihf/libz.so.1.2.11
>>> b6eaf000-b6ebe000 ---p 00019000 b3:02 1308274 /lib/arm-linux-gnueabihf/libz.so.1.2.11
>>> b6ebe000-b6ebf000 r--p 00018000 b3:02 1308274 /lib/arm-linux-gnueabihf/libz.so.1.2.11
>>> b6ebf000-b6ec0000 rw-p 00019000 b3:02 1308274 /lib/arm-linux-gnueabihf/libz.so.1.2.11
>>> b6ec0000-b6fa2000 r-xp 00000000 b3:02 2708489 /lib/arm-linux-gnueabihf/libc-2.27.so
>>> b6fa2000-b6fb2000 ---p 000e2000 b3:02 2708489 /lib/arm-linux-gnueabihf/libc-2.27.so
>>> b6fb2000-b6fb4000 r--p 000e2000 b3:02 2708489 /lib/arm-linux-gnueabihf/libc-2.27.so
>>> b6fb4000-b6fb5000 rw-p 000e4000 b3:02 2708489 /lib/arm-linux-gnueabihf/libc-2.27.so
>>> b6fb5000-b6fb8000 rw-p 00000000 00:00 0
>>> b6fb8000-b6fc2000 r-xp 00000000 b3:02 144083 /workspace/build/linux-arm-server-fastdebug/jdk/lib/libjli.so
>>> b6fc2000-b6fd1000 ---p 0000a000 b3:02 144083 /workspace/build/linux-arm-server-fastdebug/jdk/lib/libjli.so
>>> b6fd1000-b6fd2000 r--p 00009000 b3:02 144083 /workspace/build/linux-arm-server-fastdebug/jdk/lib/libjli.so
>>> b6fd2000-b6fd3000 rw-p 0000a000 b3:02 144083 /workspace/build/linux-arm-server-fastdebug/jdk/lib/libjli.so
>>> b6fd3000-b6feb000 r-xp 00000000 b3:02 2708477 /lib/arm-linux-gnueabihf/ld-2.27.so
>>> b6ff2000-b6ff4000 rw-p 00000000 00:00 0
>>> b6ff6000-b6ff7000 ---p 00000000 00:00 0
>>> b6ff7000-b6ff8000 r--p 00000000 00:00 0
>>> b6ff8000-b6ff9000 rwxp 00000000 00:00 0
>>> b6ff9000-b6ffb000 rw-p 00000000 00:00 0
>>> b6ffb000-b6ffc000 r--p 00018000 b3:02 2708477 /lib/arm-linux-gnueabihf/ld-2.27.so
>>> b6ffc000-b6ffd000 rw-p 00019000 b3:02 2708477 /lib/arm-linux-gnueabihf/ld-2.27.so
>>> bed97000-bedb8000 rw-p 00000000 00:00 0 [stack]
>>> beeb0000-beeb1000 r-xp 00000000 00:00 0 [sigpage]
>>> beeb1000-beeb2000 r--p 00000000 00:00 0 [vvar]
>>> beeb2000-beeb3000 r-xp 00000000 00:00 0 [vdso]
>>> ffff0000-ffff1000 r-xp 00000000 00:00 0 [vectors]
>>>
>>>
>>> VM Arguments:
>>> jvm_args: -Xms64M -Xmx768M --add-exports=java.base/jdk.internal.module=ALL-UNNAMED
>>> java_command: build.tools.jigsaw.AddPackagesAttribute /workspace/build/linux-arm-server-fastdebug/jdk
>>> java_class_path (initial): /workspace/build/linux-arm-server-fastdebug/buildtools/tools_jigsaw_classes
>>> Launcher Type: SUN_STANDARD
>>>
>>> [Global flags]
>>> uint ConcGCThreads = 1 {product} {ergonomic} Number of threads concurrent gc will use
>>> uint G1ConcRefinementThreads = 4 {product} {ergonomic} The number of parallel rem set update threads. Will be set ergonomically by default.
>>> size_t G1HeapRegionSize = 1048576 {product} {ergonomic} Size of the G1 regions.
>>> uintx GCDrainStackTargetSize = 64 {product} {ergonomic} Number of entries we will try to leave on the stack during parallel gc
>>> size_t InitialHeapSize = 67108864 {product} {command line} Initial heap size (in bytes); zero means use ergonomics
>>> size_t MarkStackSize = 32768 {product} {ergonomic} Size of marking stack
>>> size_t MaxHeapSize = 805306368 {product} {command line} Maximum heap size (in bytes)
>>> size_t MaxNewSize = 482344960 {product} {ergonomic} Maximum new generation size (in bytes), max_uintx means set ergonomically
>>> size_t MinHeapDeltaBytes = 1048576 {product} {ergonomic} The minimum change in heap space due to GC (in bytes)
>>> size_t MinHeapSize = 67108864 {product} {command line} Minimum heap size (in bytes); zero means use ergonomics
>>> uintx NonProfiledCodeHeapSize = 0 {pd product} {ergonomic} Size of code heap with non-profiled methods (in bytes)
>>> uintx ProfiledCodeHeapSize = 0 {pd product} {ergonomic} Size of code heap with profiled methods (in bytes)
>>> size_t SoftMaxHeapSize = 805306368 {manageable} {ergonomic} Soft limit for maximum heap size (in bytes)
>>> bool UseG1GC = true {product} {ergonomic} Use the Garbage-First garbage collector
>>>
>>> Logging:
>>> Log output configuration:
>>> #0: stdout all=warning uptime,level,tags
>>> #1: stderr all=off uptime,level,tags
>>>
>>> Environment Variables:
>>> JAVA_HOME=/opt/java/openjdk
>>> PATH=/opt/java/openjdk/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
>>> LC_ALL=C
>>>
>>> Signal Handlers:
>>> SIGSEGV: [libjvm.so+0xe19e65], sa_mask[0]=11111111011111111101111111111110, sa_flags=SA_RESTART|SA_SIGINFO
>>> SIGBUS: [libjvm.so+0xe19e65], sa_mask[0]=11111111011111111101111111111110, sa_flags=SA_RESTART|SA_SIGINFO
>>> SIGFPE: [libjvm.so+0xe19e65], sa_mask[0]=11111111011111111101111111111110, sa_flags=SA_RESTART|SA_SIGINFO
>>> SIGPIPE: [libjvm.so+0xc9aa9d], sa_mask[0]=11111111011111111101111111111110, sa_flags=SA_RESTART|SA_SIGINFO
>>> SIGXFSZ: [libjvm.so+0xc9aa9d], sa_mask[0]=11111111011111111101111111111110, sa_flags=SA_RESTART|SA_SIGINFO
>>> SIGILL: [libjvm.so+0xe19e65], sa_mask[0]=11111111011111111101111111111110, sa_flags=SA_RESTART|SA_SIGINFO
>>> SIGUSR2: [libjvm.so+0xc9ad95], sa_mask[0]=00000000000000000000000000000000, sa_flags=SA_RESTART|SA_SIGINFO
>>> SIGHUP: SIG_DFL, sa_mask[0]=00000000000000000000000000000000, sa_flags=none
>>> SIGINT: SIG_DFL, sa_mask[0]=00000000000000000000000000000000, sa_flags=none
>>> SIGTERM: SIG_DFL, sa_mask[0]=00000000000000000000000000000000, sa_flags=none
>>> SIGQUIT: SIG_DFL, sa_mask[0]=00000000000000000000000000000000, sa_flags=none
>>>
>>>
>>> --------------- S Y S T E M ---------------
>>>
>>> OS:
>>> DISTRIB_ID=Ubuntu
>>> DISTRIB_RELEASE=18.04
>>> DISTRIB_CODENAME=bionic
>>> DISTRIB_DESCRIPTION="Ubuntu 18.04.3 LTS"
>>> uname: Linux 20431585315d 5.4.51-v7l+ #1333 SMP Mon Aug 10 16:51:40 BST 2020 armv7l
>>> OS uptime: 14 days 7:59 hours
>>> libc: glibc 2.27 NPTL 2.27
>>> rlimit (soft/hard): STACK 8192k/infinity , CORE infinity/infinity , NPROC infinity/infinity , NOFILE 1048576/1048576 , AS infinity/infinity , CPU infinity/infinity , DATA infinity/infinity , FSIZE infinity/infinity , MEMLOCK 64k/64k
>>> load average: 3.37 3.26 3.09
>>>
>>> /proc/meminfo:
>>> MemTotal: 3919812 kB
>>> MemFree: 1255688 kB
>>> MemAvailable: 3518740 kB
>>> Buffers: 134316 kB
>>> Cached: 2117828 kB
>>> SwapCached: 0 kB
>>> Active: 1266624 kB
>>> Inactive: 1167412 kB
>>> Active(anon): 110360 kB
>>> Inactive(anon): 80744 kB
>>> Active(file): 1156264 kB
>>> Inactive(file): 1086668 kB
>>> Unevictable: 16 kB
>>> Mlocked: 16 kB
>>> HighTotal: 3264512 kB
>>> HighFree: 1038848 kB
>>> LowTotal: 655300 kB
>>> LowFree: 216840 kB
>>> SwapTotal: 102396 kB
>>> SwapFree: 102396 kB
>>> Dirty: 24916 kB
>>> Writeback: 0 kB
>>> AnonPages: 181884 kB
>>> Mapped: 125864 kB
>>> Shmem: 16892 kB
>>> KReclaimable: 181816 kB
>>> Slab: 205164 kB
>>> SReclaimable: 181816 kB
>>> SUnreclaim: 23348 kB
>>> KernelStack: 2240 kB
>>> PageTables: 2684 kB
>>> NFS_Unstable: 0 kB
>>> Bounce: 0 kB
>>> WritebackTmp: 0 kB
>>> CommitLimit: 2062300 kB
>>> Committed_AS: 1125176 kB
>>> VmallocTotal: 245760 kB
>>> VmallocUsed: 5520 kB
>>> VmallocChunk: 0 kB
>>> Percpu: 512 kB
>>> CmaTotal: 262144 kB
>>> CmaFree: 171244 kB
>>>
>>> /sys/kernel/mm/transparent_hugepage/enabled: <Not Available>
>>> /sys/kernel/mm/transparent_hugepage/defrag (defrag/compaction efforts parameter): <Not Available>
>>>
>>> Process Memory:
>>> Virtual Size: 888828K (peak: 888828K)
>>> Resident Set Size: 25020K (peak: 25020K) (anon: 11372K, file: 13648K, shmem: 0K)
>>> Swapped out: 0K
>>> C-Heap outstanding allocations: 1636K
>>>
>>> /proc/sys/kernel/threads-max (system-wide limit on the number of threads): 57119
>>> /proc/sys/vm/max_map_count (maximum number of memory map areas a process may have): 65530
>>> /proc/sys/kernel/pid_max (system-wide limit on number of process identifiers): 32768
>>>
>>> Steal ticks since vm start: 0
>>> Steal ticks percentage since vm start: 0.000
>>>
>>> CPU: total 4 (initial active 4) (ARMv7), vfp, vfp3-32, simd, mp_ext
>>> /proc/cpuinfo:
>>> processor : 0
>>> model name : ARMv7 Processor rev 3 (v7l)
>>> BogoMIPS : 270.00
>>> Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
>>> CPU implementer : 0x41
>>> CPU architecture: 7
>>> CPU variant : 0x0
>>> CPU part : 0xd08
>>> CPU revision : 3
>>>
>>> processor : 1
>>> model name : ARMv7 Processor rev 3 (v7l)
>>> BogoMIPS : 270.00
>>> Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
>>> CPU implementer : 0x41
>>> CPU architecture: 7
>>> CPU variant : 0x0
>>> CPU part : 0xd08
>>> CPU revision : 3
>>>
>>> processor : 2
>>> model name : ARMv7 Processor rev 3 (v7l)
>>> BogoMIPS : 270.00
>>> Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
>>> CPU implementer : 0x41
>>> CPU architecture: 7
>>> CPU variant : 0x0
>>> CPU part : 0xd08
>>> CPU revision : 3
>>>
>>> processor : 3
>>> model name : ARMv7 Processor rev 3 (v7l)
>>> BogoMIPS : 270.00
>>> Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
>>> CPU implementer : 0x41
>>> CPU architecture: 7
>>> CPU variant : 0x0
>>> CPU part : 0xd08
>>> CPU revision : 3
>>>
>>> Hardware : BCM2711
>>> Revision : c03111
>>> Serial : 100000001c47254f
>>> Model : Raspberry Pi 4 Model B Rev 1.1
>>>
>>> Online cpus: 0-3
>>> Offline cpus:
>>>
>>> Memory: 4k page, physical 3919812k(1255688k free), swap 102396k(102396k free)
>>>
>>> vm_info: OpenJDK Server VM (fastdebug 16-internal+0-adhoc..workspace) for linux-arm JRE (16-internal+0-adhoc..workspace), built on Oct 12 2020 19:49:51 by "" with gcc 7.5.0
>>>
>>> END.
>>>
>>>
>>>
>>>
>>>> On 12. Oct 2020, at 20:24, Aleksey Shipilev <shade at redhat.com> wrote:
>>>>
>>>> Hi,
>>>>
>>>> On 10/12/20 8:12 PM, Marc Hoffmann wrote:
>>>>> Please find the build log and the hs_err file for commit fd0cb98ed03c6214c02ccd3503c1e6d77065a428 attached.
>>>>
>>>> Please try to build with fastdebug (./configure --enable-debug), so that JVM asserts meaninfully somewhere?
>>>>
>>>>> Is there any additional information I can provide to help getting these builds fixed again?
>>>>
>>>> I am seeing plenty of weird x86_32 crashes since last week. Pretty sure some of them would manifest on ARM32 as well. This is why building with fastdebug is the next step: it maps out the bug symptoms.
>>>>
>>>> --
>>>> Thanks,
>>>> -Aleksey
>>>>
>>>
>
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