[Bug gdb/25818] New: gdb.FinishBreakpoint causes invalid opcode: 0000 [#1] PREEMPT SMP NOPTI

[Bug gdb/25818] New: gdb.FinishBreakpoint causes invalid opcode: 0000 [#1] PREEMPT SMP NOPTI

[ashfaq_ansari1989 at hotmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=25818

            Bug ID: 25818
           Summary: gdb.FinishBreakpoint causes invalid opcode: 0000 [#1]
                    PREEMPT SMP NOPTI
           Product: gdb
           Version: 9.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: gdb
          Assignee: unassigned at sourceware dot org
          Reporter: ashfaq_ansari1989 at hotmail dot com
  Target Milestone: ---

[  146.756858] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
[  146.759102] Modules linked in:
[  146.760104] CPU: 0 PID: 4124 Comm: ThreadPoolServi Tainted: G        W      
4.14.150+ #1
[  146.760104] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.11.1-0-g0551a4be2c-prebuilt.qemu-project.org 04/01/2014
[  146.760104] task: 00000000eaaa3fb6 task.stack: 00000000154e6364
[  146.760104] RIP: 0010:ep_unregister_pollwait+0x59/0x7d
[  146.760104] RSP: 0018:ffffc900034abe10 EFLAGS: 00010286
[  146.760104] RAX: 0000000080000000 RBX: ffff88801db2fea0 RCX:
dead000000000200
[  146.760104] RDX: ffff888041d125c8 RSI: 0000000000000286 RDI:
00000000ffffffff
[  146.760104] RBP: ffffc900034abe30 R08: ffff88802cb71380 R09:
0000729cebce1be8
[  146.760104] R10: 00000000000000e9 R11: 0000000000000000 R12:
dead000000000200
[  146.760104] R13: 000000000000003e R14: ffff88802cb713c0 R15:
dead000000000100
[  146.760104] FS:  0000729c98305010(0000) GS:ffff88807fc00000(0000)
knlGS:0000729cea0b5000
[  146.760104] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  146.760104] CR2: 0000000013d7f000 CR3: 000000005d070000 CR4:
00000000000006b0
[  146.760104] Call Trace:
[  146.760104]  ep_remove+0x1d/0xbf
[  146.760104]  SyS_epoll_ctl+0x3ea/0xa04
[  146.760104]  ? syscall_trace_enter+0x166/0x265
[  146.760104]  do_syscall_64+0x68/0x95
[  146.760104]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[  146.760104] RIP: 0033:0x729d7a5f4f1a
[  146.760104] RSP: 002b:0000729c98304ac8 EFLAGS: 00000246 ORIG_RAX:
00000000000000e9
[  146.760104] RAX: ffffffffffffffda RBX: 0000729cebd6dc00 RCX:
0000729d7a5f4f1a
[  146.760104] RDX: 000000000000003e RSI: 0000000000000002 RDI:
000000000000002e
[  146.760104] RBP: 0000729cebc284c0 R08: 0000729cebce1800 R09:
0000729cebce1be8
[  146.760104] R10: 0000729c98304ad8 R11: 0000000000000246 R12:
0000729cebcfdb00
[  146.760104] R13: 0000000000000000 R14: 0000000000000001 R15:
0000000000076776
[  146.760104] Code: 03 48 8b 4b 08 48 89 48 08 48 89 01 4c 89 3b 4c 89 63 08
e8 21 a9 eb ff 48 8b 7b 40 48 85 ff 74 09 48 8d 73 18 e8 b9 dd e9 ff cc <1f> a9
eb ff 48 8b 3d 5c c9 0f 01 48 89 de e8 8f fd f9 ff 49 8b 
[  146.760104] RIP: ep_unregister_pollwait+0x59/0x7d RSP: ffffc900034abe10

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[Bug python/25818] gdb.FinishBreakpoint causes invalid opcode: 0000 [#1] PREEMPT SMP NOPTI

[ashfaq_ansari1989 at hotmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=25818

ashfaq_ansari1989 at hotmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|gdb                         |python

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[Bug python/25818] gdb.FinishBreakpoint causes invalid opcode: 0000 [#1] PREEMPT SMP NOPTI

[ashfaq_ansari1989 at hotmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=25818

--- Comment #1 from ashfaq_ansari1989 at hotmail dot com ---
This crash only occurs when I use gdb.FinishBreakpoint

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[Bug python/25818] gdb.FinishBreakpoint causes invalid opcode: 0000 [#1] PREEMPT SMP NOPTI

[luciham20 at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=25818

Lucille F. Parham <luciham20 at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |luciham20 at gmail dot com

--- Comment #2 from Lucille F. Parham <luciham20 at gmail dot com> ---
This is a really interesting and informative post. Good job ! keep it up, hope
to read your other updates.
https://www.reddit.com/r/AndroidtoPCandMac/comments/f79k3w/how_to_easily_play_subway_surfers_in_pc/

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[Bug python/25818] gdb.FinishBreakpoint causes invalid opcode: 0000 [#1] PREEMPT SMP NOPTI

[luciham20 at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=25818

--- Comment #3 from Lucille F. Parham <luciham20 at gmail dot com> ---
This is a really interesting and informative post. Good job ! keep it up, hope
to read your other updates.
https://www.reddit.com/r/AndroidtoPCandMac/comments/f79k3w/how_to_easily_play_subway_surfers_in_pc/

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[Bug python/25818] gdb.FinishBreakpoint causes invalid opcode: 0000 [#1] PREEMPT SMP NOPTI

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=25818

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tromey at sourceware dot org

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[Bug python/25818] gdb.FinishBreakpoint causes invalid opcode: 0000 [#1] PREEMPT SMP NOPTI

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=25818

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2020-10-31
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |WAITING

--- Comment #4 from Tom Tromey <tromey at sourceware dot org> ---
Thank you for the report.
There isn't really enough information here for us to act on.
More details would help, like say a reproducing program
and python script, and instructions on how to set it up

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