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[Bug 1912790] [NEW] qemu-aarch64-static segfaults python3
|
From: |
Santiago Piccinini |
|
Subject: |
[Bug 1912790] [NEW] qemu-aarch64-static segfaults python3 |
|
Date: |
Fri, 22 Jan 2021 14:13:22 -0000 |
Public bug reported:
qemu-aarch64-static is segfaulting in a debian build process using
debootstrap.
```
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/bin/qemu-aarch64-static...
Reading symbols from
/usr/lib/debug/.build-id/30/efd3930fb9519b21470b113679376f2ffbb41a.debug...
[New LWP 21817]
[New LWP 21819]
warning: Corrupted shared library list: 0xd5f140 != 0x0
Warning: couldn't activate thread debugging using libthread_db: Cannot find new
threads: debugger service failed
Core was generated by `/usr/bin/qemu-aarch64-static /usr/bin/python3.9 -c
import imp; print(imp.get_ta'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 have_mmap_lock () at ../../linux-user/mmap.c:43
43 return mmap_lock_count > 0 ? true : false;
[Current thread is 1 (LWP 21817)]
(gdb) bt
#0 have_mmap_lock () at ../../linux-user/mmap.c:43
#1 0x000000000058eb2c in page_set_flags (start=start@entry=4194304,
end=end@entry=26451968, flags=flags@entry=8) at
../../accel/tcg/translate-all.c:2568
#2 0x00000000005638cd in target_mmap (start=start@entry=4194304,
len=<optimized out>, len@entry=22257160, target_prot=target_prot@entry=0,
flags=16434,
fd=fd@entry=-1, offset=offset@entry=0) at ../../linux-user/mmap.c:602
#3 0x000000000057042d in load_elf_image (image_name=0x7ffff7b7e8d8
"/usr/bin/python3.9", image_fd=3, info=info@entry=0x7ffff7b7ce70,
pinterp_name=pinterp_name@entry=0x7ffff7b7cbd0,
bprm_buf=bprm_buf@entry=0x7ffff7b7d080 "\177ELF\002\001\001") at
../../linux-user/elfload.c:2700
#4 0x0000000000570b9c in load_elf_binary (bprm=bprm@entry=0x7ffff7b7d080,
info=info@entry=0x7ffff7b7ce70) at ../../linux-user/elfload.c:3104
#5 0x00000000005c2fdb in loader_exec (fdexec=fdexec@entry=3,
filename=<optimized out>, argv=argv@entry=0x2622910, envp=envp@entry=0x2686340,
regs=regs@entry=0x7ffff7b7cf70, infop=infop@entry=0x7ffff7b7ce70,
bprm=<optimized out>) at ../../linux-user/linuxload.c:147
#6 0x00000000004027f7 in main (argc=<optimized out>, argv=0x7ffff7b7d638,
envp=<optimized out>) at ../../linux-user/main.c:810
(gdb) i r
rax 0x0 0
rbx 0x400000 4194304
rcx 0x7a95d2 8033746
rdx 0x8 8
rsi 0x193a000 26451968
rdi 0x400000 4194304
rbp 0x400000 0x400000
rsp 0x7ffff7b7c978 0x7ffff7b7c978
r8 0xffffffff 4294967295
r9 0x0 0
r10 0x4032 16434
r11 0x206 518
r12 0x193a000 26451968
r13 0x8 8
r14 0x8 8
r15 0x193a000 26451968
rip 0x562f20 0x562f20 <have_mmap_lock>
eflags 0x10206 [ PF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
```
Python3.9 is run as part of the installation of python3-minimal and the
segfaults happens reliably here. Debian versionn bullseye (testing)
Version: qemu-aarch64 version 5.2.0 (Debian 1:5.2+dfsg-3)
Host is a qemu-system-x86_64: Linux runner 4.19.0-13-amd64 #1 SMP Debian
4.19.160-2 (2020-11-28) x86_64 GNU/Linux.
** Affects: qemu
Importance: Undecided
Status: New
** Attachment added: "Core dump"
https://bugs.launchpad.net/bugs/1912790/+attachment/5455654/+files/qemu-aarch64-dump.xz
** Summary changed:
- qemu-aarch64-static segfaults ldconfig
+ qemu-aarch64-static segfaults python3
--
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https://bugs.launchpad.net/bugs/1912790
Title:
qemu-aarch64-static segfaults python3
Status in QEMU:
New
Bug description:
qemu-aarch64-static is segfaulting in a debian build process using
debootstrap.
```
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/bin/qemu-aarch64-static...
Reading symbols from
/usr/lib/debug/.build-id/30/efd3930fb9519b21470b113679376f2ffbb41a.debug...
[New LWP 21817]
[New LWP 21819]
warning: Corrupted shared library list: 0xd5f140 != 0x0
Warning: couldn't activate thread debugging using libthread_db: Cannot find
new threads: debugger service failed
Core was generated by `/usr/bin/qemu-aarch64-static /usr/bin/python3.9 -c
import imp; print(imp.get_ta'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 have_mmap_lock () at ../../linux-user/mmap.c:43
43 return mmap_lock_count > 0 ? true : false;
[Current thread is 1 (LWP 21817)]
(gdb) bt
#0 have_mmap_lock () at ../../linux-user/mmap.c:43
#1 0x000000000058eb2c in page_set_flags (start=start@entry=4194304,
end=end@entry=26451968, flags=flags@entry=8) at
../../accel/tcg/translate-all.c:2568
#2 0x00000000005638cd in target_mmap (start=start@entry=4194304,
len=<optimized out>, len@entry=22257160, target_prot=target_prot@entry=0,
flags=16434,
fd=fd@entry=-1, offset=offset@entry=0) at ../../linux-user/mmap.c:602
#3 0x000000000057042d in load_elf_image (image_name=0x7ffff7b7e8d8
"/usr/bin/python3.9", image_fd=3, info=info@entry=0x7ffff7b7ce70,
pinterp_name=pinterp_name@entry=0x7ffff7b7cbd0,
bprm_buf=bprm_buf@entry=0x7ffff7b7d080 "\177ELF\002\001\001") at
../../linux-user/elfload.c:2700
#4 0x0000000000570b9c in load_elf_binary (bprm=bprm@entry=0x7ffff7b7d080,
info=info@entry=0x7ffff7b7ce70) at ../../linux-user/elfload.c:3104
#5 0x00000000005c2fdb in loader_exec (fdexec=fdexec@entry=3,
filename=<optimized out>, argv=argv@entry=0x2622910, envp=envp@entry=0x2686340,
regs=regs@entry=0x7ffff7b7cf70, infop=infop@entry=0x7ffff7b7ce70,
bprm=<optimized out>) at ../../linux-user/linuxload.c:147
#6 0x00000000004027f7 in main (argc=<optimized out>, argv=0x7ffff7b7d638,
envp=<optimized out>) at ../../linux-user/main.c:810
(gdb) i r
rax 0x0 0
rbx 0x400000 4194304
rcx 0x7a95d2 8033746
rdx 0x8 8
rsi 0x193a000 26451968
rdi 0x400000 4194304
rbp 0x400000 0x400000
rsp 0x7ffff7b7c978 0x7ffff7b7c978
r8 0xffffffff 4294967295
r9 0x0 0
r10 0x4032 16434
r11 0x206 518
r12 0x193a000 26451968
r13 0x8 8
r14 0x8 8
r15 0x193a000 26451968
rip 0x562f20 0x562f20 <have_mmap_lock>
eflags 0x10206 [ PF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
```
Python3.9 is run as part of the installation of python3-minimal and
the segfaults happens reliably here. Debian versionn bullseye
(testing)
Version: qemu-aarch64 version 5.2.0 (Debian 1:5.2+dfsg-3)
Host is a qemu-system-x86_64: Linux runner 4.19.0-13-amd64 #1 SMP
Debian 4.19.160-2 (2020-11-28) x86_64 GNU/Linux.
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- [Bug 1912790] [NEW] qemu-aarch64-static segfaults python3,
Santiago Piccinini <=