`5.9.0-4.fc43`'s `debug` command hangs on an “rr backtrace” when invoked with `discord-canary-openasar-0.0.838-1`'s `DiscordCanary` binary as its sole argument.

[RokeJulianLockhart]

Reported here, per reddit.com/r/archlinux/comments/sjqi4t/comment/nv2x5yx.

Conducted Preparation

RokeJulianLockhart@Beedell:~$ wget https://github.com/rr-debugger/rr/raw/858a036359520ea9979d4850f4cee567e6d2c8c9/scripts/zen_workaround.py
HTTP response 302  [https://github.com/rr-debugger/rr/raw/858a036359520ea9979d4850f4cee567e6d2c8c9/scripts/zen_workaround.py]
Adding URL: https://raw.githubusercontent.com/rr-debugger/rr/858a036359520ea9979d4850f4cee567e6d2c8c9/scripts/zen_workaround.py
Adding URL: https://raw.githubusercontent.com/rr-debugger/rr/858a036359520ea9979d4850f4cee567e6d2c8c9/scripts/zen_workaround.py
Saving 'zen_workaround.py'
HTTP response 200  [https://raw.githubusercontent.com/rr-debugger/rr/858a036359520ea9979d4850f4cee567e6d2c8c9/scripts/zen_workaround.py]
zen_workaround.py    100% [=========================================================================================================================================================================================================================================================================>]    1.83K    --.-KB/s
                          [Files: 1  Bytes: 1.83K [3.60KB/s] Redirects: 1  Todo: 0  Errors: 0
RokeJulianLockhart@Beedell:~$ chmod +x $HOME/Downloads/zen_workaround.py
RokeJulianLockhart@Beedell:~$ sudo $HOME/Downloads/zen_workaround.py
Zen workaround in place

The Problem

When rr debug, from rr-5.9.0-4.fc43.x86_64.rpm is invoked on /usr/share/discord-canary-openasar/DiscordCanary, from discord-canary-openasar-0.0.838-1.fc43.x86_64.rpm, it hangs, with a crash trace:

RokeJulianLockhart@Beedell:~$ time rr record /usr/share/discord-canary-openasar/DiscordCanary
rr: Saving execution to trace directory `/home/RokeJulianLockhart/.local/share/rr/DiscordCanary-6'.
[FATAL src/record_syscall.cc:6754:rec_process_syscall_arch()] 
 (task 193980 (rec:193980) at time 1948)
 -> Assertion `t->regs().syscall_result_signed() == -syscall_state.expect_errno' failed to hold. Expected EINVAL for 'madvise' but got result 0 (errno SUCCESS); unknown madvise(102)
Tail of trace dump:
{
  real_time:25624.020258 global_time:1928, event:`SYSCALLBUF_RESET' tid:193980, ticks:12176189
}
{
  real_time:25624.020297 global_time:1929, event:`SYSCALLBUF_FLUSH' tid:193980, ticks:12176213
  { syscall:'socketpair', ret:0x0, size:0x18 }
}
{
  real_time:25624.020321 global_time:1930, event:`PATCH_SYSCALL' tid:193980, ticks:12176213
rax:0x30 rbx:0x55e06096b358 rcx:0xffffffffffffffff rdx:0x0 rsi:0x0 rdi:0x5 rbp:0x7ffcb4ab6a20 rsp:0x7ffcb4ab69c8 r8:0x0 r9:0x0 r10:0x7ffcb4ab69f0 r11:0x246 r12:0xffffffff r13:0x55e0607102b0 r14:0x0 r15:0xaaaaaaaaaaaaaaaa rip:0x7feb5b1c3269 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0xffffffffffffffff fs_base:0x7feb5a464380 gs_base:0x0
  { tid:193980, addr:0x7feb5cb37758, length:0x5e }
  { tid:193980, addr:0x7feb5b1c3269, length:0x8 }
}
{
  real_time:25624.020326 global_time:1931, event:`SYSCALLBUF_RESET' tid:193980, ticks:12176213
}
{
  real_time:25624.020351 global_time:1932, event:`SYSCALL: shutdown' (state:ENTERING_SYSCALL) tid:193980, ticks:12176222
rax:0xffffffffffffffda rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x0 rdi:0x5 rbp:0x681ffe40 rsp:0x681ffde0 r8:0x0 r9:0x0 r10:0x7ffcb4ab69f0 r11:0x246 r12:0xffffffff r13:0x55e0607102b0 r14:0x0 r15:0xaaaaaaaaaaaaaaaa rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x30 fs_base:0x7feb5a464380 gs_base:0x0
}
{
  real_time:25624.020370 global_time:1933, event:`SYSCALL: shutdown' (state:EXITING_SYSCALL) tid:193980, ticks:12176222
rax:0x0 rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x0 rdi:0x5 rbp:0x681ffe40 rsp:0x681ffde0 r8:0x0 r9:0x0 r10:0x7ffcb4ab69f0 r11:0x246 r12:0xffffffff r13:0x55e0607102b0 r14:0x0 r15:0xaaaaaaaaaaaaaaaa rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x30 fs_base:0x7feb5a464380 gs_base:0x0
}
{
  real_time:25624.020394 global_time:1934, event:`SYSCALL: shutdown' (state:ENTERING_SYSCALL) tid:193980, ticks:12176236
rax:0xffffffffffffffda rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x1 rdi:0x6 rbp:0x681ffe40 rsp:0x681ffde0 r8:0x0 r9:0x0 r10:0x7ffcb4ab69f0 r11:0x246 r12:0xffffffff r13:0x55e0607102b0 r14:0x6 r15:0xaaaaaaaaaaaaaaaa rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x30 fs_base:0x7feb5a464380 gs_base:0x0
}
{
  real_time:25624.020412 global_time:1935, event:`SYSCALL: shutdown' (state:EXITING_SYSCALL) tid:193980, ticks:12176236
rax:0x0 rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x1 rdi:0x6 rbp:0x681ffe40 rsp:0x681ffde0 r8:0x0 r9:0x0 r10:0x7ffcb4ab69f0 r11:0x246 r12:0xffffffff r13:0x55e0607102b0 r14:0x6 r15:0xaaaaaaaaaaaaaaaa rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x30 fs_base:0x7feb5a464380 gs_base:0x0
}
{
  real_time:25624.020456 global_time:1936, event:`PATCH_SYSCALL' tid:193980, ticks:12176241
rax:0x125 rbx:0x55e06096b358 rcx:0xffffffffffffffff rdx:0x0 rsi:0x0 rdi:0x7ffcb4ab69f8 rbp:0x7ffcb4ab6a20 rsp:0x7ffcb4ab69c8 r8:0x0 r9:0x0 r10:0x7ffcb4ab69f0 r11:0x246 r12:0xffffffff r13:0x55e0607102b0 r14:0x6 r15:0xaaaaaaaaaaaaaaaa rip:0x7feb5b1b411b eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0xffffffffffffffff fs_base:0x7feb5a464380 gs_base:0x0
  { tid:193980, addr:0x7feb5cb377b6, length:0x5e }
  { tid:193980, addr:0x7feb5b1b411b, length:0x8 }
}
{
  real_time:25624.020480 global_time:1937, event:`SYSCALL: pipe2' (state:ENTERING_SYSCALL) tid:193980, ticks:12176251
rax:0xffffffffffffffda rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x0 rdi:0x7ffcb4ab69f8 rbp:0x681ffe40 rsp:0x681ffde0 r8:0x0 r9:0x0 r10:0x7ffcb4ab69f0 r11:0x246 r12:0xffffffff r13:0x55e0607102b0 r14:0x6 r15:0xaaaaaaaaaaaaaaaa rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x125 fs_base:0x7feb5a464380 gs_base:0x0
}
{
  real_time:25624.020505 global_time:1938, event:`SYSCALL: pipe2' (state:EXITING_SYSCALL) tid:193980, ticks:12176251
rax:0x0 rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x0 rdi:0x7ffcb4ab69f8 rbp:0x681ffe40 rsp:0x681ffde0 r8:0x0 r9:0x0 r10:0x7ffcb4ab69f0 r11:0x246 r12:0xffffffff r13:0x55e0607102b0 r14:0x6 r15:0xaaaaaaaaaaaaaaaa rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x125 fs_base:0x7feb5a464380 gs_base:0x0
  { tid:193980, addr:0x7ffcb4ab69f8, length:0x8 }
}
{
  real_time:25624.020531 global_time:1939, event:`SYSCALL: rt_sigaction' (state:ENTERING_SYSCALL) tid:193980, ticks:12176377
rax:0xffffffffffffffda rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x7ffcb4ab6530 rdi:0x21 rbp:0x681ffe40 rsp:0x681ffde0 r8:0x0 r9:0x7e0000b62e0 r10:0x8 r11:0x246 r12:0xfffffffc00000000 r13:0x1 r14:0x7e0000b62e0 r15:0x2 rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0xd fs_base:0x7feb5a464380 gs_base:0x0
}
{
  real_time:25624.020551 global_time:1940, event:`SYSCALL: rt_sigaction' (state:EXITING_SYSCALL) tid:193980, ticks:12176377
rax:0x0 rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x7ffcb4ab6530 rdi:0x21 rbp:0x681ffe40 rsp:0x681ffde0 r8:0x0 r9:0x7e0000b62e0 r10:0x8 r11:0x246 r12:0xfffffffc00000000 r13:0x1 r14:0x7e0000b62e0 r15:0x2 rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0xd fs_base:0x7feb5a464380 gs_base:0x0
}
{
  real_time:25624.020579 global_time:1941, event:`SYSCALL: rt_sigprocmask' (state:ENTERING_SYSCALL) tid:193980, ticks:12176383
rax:0xffffffffffffffda rbx:0x7e000006ca0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x7ffcb4ab66f8 rdi:0x1 rbp:0x7ffcb4ab67c0 rsp:0x7ffcb4ab6680 r8:0x0 r9:0x7e0000b62e0 r10:0x8 r11:0x246 r12:0xfffffffc00000000 r13:0x1 r14:0x7e0000b62e0 r15:0x2 rip:0x7feb5b13ecbf eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0xe fs_base:0x7feb5a464380 gs_base:0x0
}
{
  real_time:25624.020597 global_time:1942, event:`SYSCALL: rt_sigprocmask' (state:EXITING_SYSCALL) tid:193980, ticks:12176383
rax:0x0 rbx:0x7e000006ca0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x7ffcb4ab66f8 rdi:0x1 rbp:0x7ffcb4ab67c0 rsp:0x7ffcb4ab6680 r8:0x0 r9:0x7e0000b62e0 r10:0x8 r11:0x246 r12:0xfffffffc00000000 r13:0x1 r14:0x7e0000b62e0 r15:0x2 rip:0x7feb5b13ecbf eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0xe fs_base:0x7feb5a464380 gs_base:0x0
}
{
  real_time:25624.020610 global_time:1943, event:`PATCH_SYSCALL' tid:193980, ticks:12176383
rax:0x0 rbx:0x7e000006ca0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x7ffcb4ab66f8 rdi:0x1 rbp:0x7ffcb4ab67c0 rsp:0x7ffcb4ab6680 r8:0x0 r9:0x7e0000b62e0 r10:0x8 r11:0x246 r12:0xfffffffc00000000 r13:0x1 r14:0x7e0000b62e0 r15:0x2 rip:0x7feb5b13ecbf eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0xe fs_base:0x7feb5a464380 gs_base:0x0
  { tid:193980, addr:0x7feb5cb37814, length:0x5e }
  { tid:193980, addr:0x7feb5b13ecb8, length:0x7 }
}
{
  real_time:25624.020635 global_time:1944, event:`SYSCALL: mmap' (state:ENTERING_SYSCALL) tid:193980, ticks:12176410
rax:0xffffffffffffffda rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x3 rsi:0x801000 rdi:0x0 rbp:0x681ffe40 rsp:0x681ffde0 r8:0xffffffff r9:0x0 r10:0x20022 r11:0x246 r12:0x20022 r13:0x0 r14:0xffffffffffffffc0 r15:0x7feb5cbc0000 rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x9 fs_base:0x7feb5a464380 gs_base:0x0
}
{
  real_time:25624.020662 global_time:1945, event:`SYSCALL: mmap' (state:EXITING_SYSCALL) tid:193980, ticks:12176410
rax:0x7feb4abff000 rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x3 rsi:0x801000 rdi:0x0 rbp:0x681ffe40 rsp:0x681ffde0 r8:0xffffffff r9:0x0 r10:0x20022 r11:0x246 r12:0x20022 r13:0x0 r14:0xffffffffffffffc0 r15:0x7feb5cbc0000 rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x9 fs_base:0x7feb5a464380 gs_base:0x0
  { map_file:"<ZERO>", addr:0x7feb4abff000, length:0x801000, prot_flags:"rw-p", file_offset:0x0, device:0, inode:0, data_file:"", data_offset:0x0, file_size:0x801000 }
}
{
  real_time:25624.020707 global_time:1946, event:`PATCH_SYSCALL' tid:193980, ticks:12176419
rax:0x1c rbx:0x7feb4b3ff6c0 rcx:0xffffffffffffffff rdx:0x66 rsi:0x1000 rdi:0x7feb4abff000 rbp:0x7ffcb4ab67c0 rsp:0x7ffcb4ab6678 r8:0xffffffff r9:0x0 r10:0x801000 r11:0x246 r12:0x7ffcb4ab6920 r13:0x0 r14:0xffffffffffffffc0 r15:0x7feb5cbc0000 rip:0x7feb5b1bd649 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0xffffffffffffffff fs_base:0x7feb5a464380 gs_base:0x0
  { tid:193980, addr:0x7feb5cb37872, length:0x5e }
  { tid:193980, addr:0x7feb5b1bd649, length:0x8 }
}
{
  real_time:25624.020732 global_time:1947, event:`SYSCALL: madvise' (state:ENTERING_SYSCALL) tid:193980, ticks:12176431
rax:0xffffffffffffffda rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x66 rsi:0x1000 rdi:0x7feb4abff000 rbp:0x681ffe40 rsp:0x681ffde0 r8:0xffffffff r9:0x0 r10:0x801000 r11:0x246 r12:0x7ffcb4ab6920 r13:0x0 r14:0xffffffffffffffc0 r15:0x7feb5cbc0000 rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x1c fs_base:0x7feb5a464380 gs_base:0x0
}
=== Start rr backtrace:
rr(_ZN2rr13dump_rr_stackERNS_8ScopedFdE+0x5b) [0x55b623601d3b]
rr(_ZN2rr15emergency_debugEPNS_4TaskE+0x1b5) [0x55b6234c1325]
rr(+0xc3b25) [0x55b6234c1b25]
rr(+0xc4c27) [0x55b6234c2c27]
rr(+0xc4c64) [0x55b6234c2c64]
rr(+0x12de3f) [0x55b62352be3f]
rr(_ZN2rr19rec_process_syscallEPNS_10RecordTaskE+0x1a5) [0x55b623518495]
rr(_ZN2rr13RecordSession21syscall_state_changedEPNS_10RecordTaskEPNS0_9StepStateE+0x9f8) [0x55b6234fcf98]
rr(_ZN2rr13RecordSession11record_stepEv+0x619) [0x55b623500aa9]
rr(_ZN2rr13RecordCommand3runERSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS7_EE+0x1021) [0x55b6234f2cc1]
rr(main+0x1ba) [0x55b62342708a]
/lib64/libc.so.6(+0x35b5) [0x7fcd1fbe45b5]
/lib64/libc.so.6(__libc_start_main+0x88) [0x7fcd1fbe4668]
rr(_start+0x25) [0x55b623428665]
=== End rr backtrace
Launch debugger with
  'gdb' '-l' '10000' '-ex' 'set sysroot /' '-ex' 'target extended-remote 127.0.0.1:62908' '/usr/share/discord-canary-openasar/DiscordCanary' 
^C


real    252m29.853s
user    0m0.159s
sys     0m0.368s

My Environment

1. #!/usr/bin/env sh
   rpm -qi \
    $(rpm -qf $(command -v rr)) \
    $(rpm -qf /usr/share/discord-canary-openasar/DiscordCanary)

2. • Name        : rr
     Version     : 5.9.0
     Release     : 4.fc43
     Architecture: x86_64
     Install Date: Sat 20 Dec 2025 13:01:56 GMT
     Size        : 4383412
     Signature   :
                   RSA/SHA256, Tue 12 Aug 2025 01:07:38 BST, Key ID 829b606631645531
     Source RPM  : rr-5.9.0-4.fc43.src.rpm
     Build Date  : Tue 12 Aug 2025 01:00:24 BST
     Build Host  : buildvm-x86-16.rdu3.fedoraproject.org
     Packager    : Fedora Project
     Vendor      : Fedora Project
     URL         : http://rr-project.org
     Bug URL     : https://bugz.fedoraproject.org/rr

   • Name        : discord-canary-openasar
     Version     : 0.0.838
     Release     : 1.fc43
     Architecture: x86_64
     Install Date: Sat 20 Dec 2025 12:27:48 GMT
     Size        : 269104501
     Signature   :
                   EdDSA/SHA256, Sat 20 Dec 2025 01:50:31 GMT, Key ID e43dbfe05c4f92a3
                   EdDSA/SHA256, Sat 20 Dec 2025 01:50:31 GMT, Key ID e43dbfe05c4f92a3
     Source RPM  : discord-canary-openasar-0.0.838-1.fc43.src.rpm
     Build Date  : Sat 20 Dec 2025 01:48:20 GMT
     Build Host  : 2a229bc7c1f5
     Vendor      : Terra
     URL         : https://github.com/GooseMod/OpenAsar

Context

I was attempting to debug GooseMod/OpenAsar/issues/224.

Footnotes

1. wiki/Zen/dc95d082f67751c4c8221c1d9517905ca8913c1e#wiki-body ↩

[khuey]

Looks like you need 34ff3a7 - Kyle

…

On Sat, Dec 20, 2025, 4:21 PM Mr. Beedell, Roke Julian Lockhart (RJLB) < ***@***.***> wrote: *RokeJulianLockhart* created an issue (rr-debugger/rr#4036) <#4036> Reported here, per reddit.com/r/archlinux/comments/sjqi4t/comment/nv2x5yx <https://www.reddit.com/r/archlinux/comments/sjqi4t/comment/nv2x5yx/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button> . Conducted Preparation ***@***.***:~$ wget https://github.com/rr-debugger/rr/raw/858a036359520ea9979d4850f4cee567e6d2c8c9/scripts/zen_workaround.py HTTP response 302 [https://github.com/rr-debugger/rr/raw/858a036359520ea9979d4850f4cee567e6d2c8c9/scripts/zen_workaround.py] Adding URL: https://raw.githubusercontent.com/rr-debugger/rr/858a036359520ea9979d4850f4cee567e6d2c8c9/scripts/zen_workaround.py Adding URL: https://raw.githubusercontent.com/rr-debugger/rr/858a036359520ea9979d4850f4cee567e6d2c8c9/scripts/zen_workaround.py Saving 'zen_workaround.py' HTTP response 200 [https://raw.githubusercontent.com/rr-debugger/rr/858a036359520ea9979d4850f4cee567e6d2c8c9/scripts/zen_workaround.py] zen_workaround.py 100% [=========================================================================================================================================================================================================================================================================>] 1.83K --.-KB/s [Files: 1 Bytes: 1.83K [3.60KB/s] Redirects: 1 Todo: 0 Errors: 0 ***@***.***:~$ chmod +x $HOME/Downloads/zen_workaround.py ***@***.***:~$ sudo $HOME/Downloads/zen_workaround.py Zen workaround in place The Problem When rr debug, from rr-5.9.0-4.fc43.x86_64.rpm is invoked on /usr/share/discord-canary-openasar/DiscordCanary, from discord-canary-openasar-0.0.838-1.fc43.x86_64.rpm, it hangs, with a crash trace: ***@***.***:~$ time rr record /usr/share/discord-canary-openasar/DiscordCanaryrr: Saving execution to trace directory `/home/RokeJulianLockhart/.local/share/rr/DiscordCanary-6'.[FATAL src/record_syscall.cc:6754:rec_process_syscall_arch()] (task 193980 (rec:193980) at time 1948) -> Assertion `t->regs().syscall_result_signed() == -syscall_state.expect_errno' failed to hold. Expected EINVAL for 'madvise' but got result 0 (errno SUCCESS); unknown madvise(102)Tail of trace dump:{ real_time:25624.020258 global_time:1928, event:`SYSCALLBUF_RESET' tid:193980, ticks:12176189}{ real_time:25624.020297 global_time:1929, event:`SYSCALLBUF_FLUSH' tid:193980, ticks:12176213 { syscall:'socketpair', ret:0x0, size:0x18 }}{ real_time:25624.020321 global_time:1930, event:`PATCH_SYSCALL' tid:193980, ticks:12176213rax:0x30 rbx:0x55e06096b358 rcx:0xffffffffffffffff rdx:0x0 rsi:0x0 rdi:0x5 rbp:0x7ffcb4ab6a20 rsp:0x7ffcb4ab69c8 r8:0x0 r9:0x0 r10:0x7ffcb4ab69f0 r11:0x246 r12:0xffffffff r13:0x55e0607102b0 r14:0x0 r15:0xaaaaaaaaaaaaaaaa rip:0x7feb5b1c3269 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0xffffffffffffffff fs_base:0x7feb5a464380 gs_base:0x0 { tid:193980, addr:0x7feb5cb37758, length:0x5e } { tid:193980, addr:0x7feb5b1c3269, length:0x8 }}{ real_time:25624.020326 global_time:1931, event:`SYSCALLBUF_RESET' tid:193980, ticks:12176213}{ real_time:25624.020351 global_time:1932, event:`SYSCALL: shutdown' (state:ENTERING_SYSCALL) tid:193980, ticks:12176222rax:0xffffffffffffffda rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x0 rdi:0x5 rbp:0x681ffe40 rsp:0x681ffde0 r8:0x0 r9:0x0 r10:0x7ffcb4ab69f0 r11:0x246 r12:0xffffffff r13:0x55e0607102b0 r14:0x0 r15:0xaaaaaaaaaaaaaaaa rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x30 fs_base:0x7feb5a464380 gs_base:0x0}{ real_time:25624.020370 global_time:1933, event:`SYSCALL: shutdown' (state:EXITING_SYSCALL) tid:193980, ticks:12176222rax:0x0 rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x0 rdi:0x5 rbp:0x681ffe40 rsp:0x681ffde0 r8:0x0 r9:0x0 r10:0x7ffcb4ab69f0 r11:0x246 r12:0xffffffff r13:0x55e0607102b0 r14:0x0 r15:0xaaaaaaaaaaaaaaaa rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x30 fs_base:0x7feb5a464380 gs_base:0x0}{ real_time:25624.020394 global_time:1934, event:`SYSCALL: shutdown' (state:ENTERING_SYSCALL) tid:193980, ticks:12176236rax:0xffffffffffffffda rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x1 rdi:0x6 rbp:0x681ffe40 rsp:0x681ffde0 r8:0x0 r9:0x0 r10:0x7ffcb4ab69f0 r11:0x246 r12:0xffffffff r13:0x55e0607102b0 r14:0x6 r15:0xaaaaaaaaaaaaaaaa rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x30 fs_base:0x7feb5a464380 gs_base:0x0}{ real_time:25624.020412 global_time:1935, event:`SYSCALL: shutdown' (state:EXITING_SYSCALL) tid:193980, ticks:12176236rax:0x0 rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x1 rdi:0x6 rbp:0x681ffe40 rsp:0x681ffde0 r8:0x0 r9:0x0 r10:0x7ffcb4ab69f0 r11:0x246 r12:0xffffffff r13:0x55e0607102b0 r14:0x6 r15:0xaaaaaaaaaaaaaaaa rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x30 fs_base:0x7feb5a464380 gs_base:0x0}{ real_time:25624.020456 global_time:1936, event:`PATCH_SYSCALL' tid:193980, ticks:12176241rax:0x125 rbx:0x55e06096b358 rcx:0xffffffffffffffff rdx:0x0 rsi:0x0 rdi:0x7ffcb4ab69f8 rbp:0x7ffcb4ab6a20 rsp:0x7ffcb4ab69c8 r8:0x0 r9:0x0 r10:0x7ffcb4ab69f0 r11:0x246 r12:0xffffffff r13:0x55e0607102b0 r14:0x6 r15:0xaaaaaaaaaaaaaaaa rip:0x7feb5b1b411b eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0xffffffffffffffff fs_base:0x7feb5a464380 gs_base:0x0 { tid:193980, addr:0x7feb5cb377b6, length:0x5e } { tid:193980, addr:0x7feb5b1b411b, length:0x8 }}{ real_time:25624.020480 global_time:1937, event:`SYSCALL: pipe2' (state:ENTERING_SYSCALL) tid:193980, ticks:12176251rax:0xffffffffffffffda rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x0 rdi:0x7ffcb4ab69f8 rbp:0x681ffe40 rsp:0x681ffde0 r8:0x0 r9:0x0 r10:0x7ffcb4ab69f0 r11:0x246 r12:0xffffffff r13:0x55e0607102b0 r14:0x6 r15:0xaaaaaaaaaaaaaaaa rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x125 fs_base:0x7feb5a464380 gs_base:0x0}{ real_time:25624.020505 global_time:1938, event:`SYSCALL: pipe2' (state:EXITING_SYSCALL) tid:193980, ticks:12176251rax:0x0 rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x0 rdi:0x7ffcb4ab69f8 rbp:0x681ffe40 rsp:0x681ffde0 r8:0x0 r9:0x0 r10:0x7ffcb4ab69f0 r11:0x246 r12:0xffffffff r13:0x55e0607102b0 r14:0x6 r15:0xaaaaaaaaaaaaaaaa rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x125 fs_base:0x7feb5a464380 gs_base:0x0 { tid:193980, addr:0x7ffcb4ab69f8, length:0x8 }}{ real_time:25624.020531 global_time:1939, event:`SYSCALL: rt_sigaction' (state:ENTERING_SYSCALL) tid:193980, ticks:12176377rax:0xffffffffffffffda rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x7ffcb4ab6530 rdi:0x21 rbp:0x681ffe40 rsp:0x681ffde0 r8:0x0 r9:0x7e0000b62e0 r10:0x8 r11:0x246 r12:0xfffffffc00000000 r13:0x1 r14:0x7e0000b62e0 r15:0x2 rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0xd fs_base:0x7feb5a464380 gs_base:0x0}{ real_time:25624.020551 global_time:1940, event:`SYSCALL: rt_sigaction' (state:EXITING_SYSCALL) tid:193980, ticks:12176377rax:0x0 rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x7ffcb4ab6530 rdi:0x21 rbp:0x681ffe40 rsp:0x681ffde0 r8:0x0 r9:0x7e0000b62e0 r10:0x8 r11:0x246 r12:0xfffffffc00000000 r13:0x1 r14:0x7e0000b62e0 r15:0x2 rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0xd fs_base:0x7feb5a464380 gs_base:0x0}{ real_time:25624.020579 global_time:1941, event:`SYSCALL: rt_sigprocmask' (state:ENTERING_SYSCALL) tid:193980, ticks:12176383rax:0xffffffffffffffda rbx:0x7e000006ca0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x7ffcb4ab66f8 rdi:0x1 rbp:0x7ffcb4ab67c0 rsp:0x7ffcb4ab6680 r8:0x0 r9:0x7e0000b62e0 r10:0x8 r11:0x246 r12:0xfffffffc00000000 r13:0x1 r14:0x7e0000b62e0 r15:0x2 rip:0x7feb5b13ecbf eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0xe fs_base:0x7feb5a464380 gs_base:0x0}{ real_time:25624.020597 global_time:1942, event:`SYSCALL: rt_sigprocmask' (state:EXITING_SYSCALL) tid:193980, ticks:12176383rax:0x0 rbx:0x7e000006ca0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x7ffcb4ab66f8 rdi:0x1 rbp:0x7ffcb4ab67c0 rsp:0x7ffcb4ab6680 r8:0x0 r9:0x7e0000b62e0 r10:0x8 r11:0x246 r12:0xfffffffc00000000 r13:0x1 r14:0x7e0000b62e0 r15:0x2 rip:0x7feb5b13ecbf eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0xe fs_base:0x7feb5a464380 gs_base:0x0}{ real_time:25624.020610 global_time:1943, event:`PATCH_SYSCALL' tid:193980, ticks:12176383rax:0x0 rbx:0x7e000006ca0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x7ffcb4ab66f8 rdi:0x1 rbp:0x7ffcb4ab67c0 rsp:0x7ffcb4ab6680 r8:0x0 r9:0x7e0000b62e0 r10:0x8 r11:0x246 r12:0xfffffffc00000000 r13:0x1 r14:0x7e0000b62e0 r15:0x2 rip:0x7feb5b13ecbf eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0xe fs_base:0x7feb5a464380 gs_base:0x0 { tid:193980, addr:0x7feb5cb37814, length:0x5e } { tid:193980, addr:0x7feb5b13ecb8, length:0x7 }}{ real_time:25624.020635 global_time:1944, event:`SYSCALL: mmap' (state:ENTERING_SYSCALL) tid:193980, ticks:12176410rax:0xffffffffffffffda rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x3 rsi:0x801000 rdi:0x0 rbp:0x681ffe40 rsp:0x681ffde0 r8:0xffffffff r9:0x0 r10:0x20022 r11:0x246 r12:0x20022 r13:0x0 r14:0xffffffffffffffc0 r15:0x7feb5cbc0000 rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x9 fs_base:0x7feb5a464380 gs_base:0x0}{ real_time:25624.020662 global_time:1945, event:`SYSCALL: mmap' (state:EXITING_SYSCALL) tid:193980, ticks:12176410rax:0x7feb4abff000 rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x3 rsi:0x801000 rdi:0x0 rbp:0x681ffe40 rsp:0x681ffde0 r8:0xffffffff r9:0x0 r10:0x20022 r11:0x246 r12:0x20022 r13:0x0 r14:0xffffffffffffffc0 r15:0x7feb5cbc0000 rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x9 fs_base:0x7feb5a464380 gs_base:0x0 { map_file:"<ZERO>", addr:0x7feb4abff000, length:0x801000, prot_flags:"rw-p", file_offset:0x0, device:0, inode:0, data_file:"", data_offset:0x0, file_size:0x801000 }}{ real_time:25624.020707 global_time:1946, event:`PATCH_SYSCALL' tid:193980, ticks:12176419rax:0x1c rbx:0x7feb4b3ff6c0 rcx:0xffffffffffffffff rdx:0x66 rsi:0x1000 rdi:0x7feb4abff000 rbp:0x7ffcb4ab67c0 rsp:0x7ffcb4ab6678 r8:0xffffffff r9:0x0 r10:0x801000 r11:0x246 r12:0x7ffcb4ab6920 r13:0x0 r14:0xffffffffffffffc0 r15:0x7feb5cbc0000 rip:0x7feb5b1bd649 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0xffffffffffffffff fs_base:0x7feb5a464380 gs_base:0x0 { tid:193980, addr:0x7feb5cb37872, length:0x5e } { tid:193980, addr:0x7feb5b1bd649, length:0x8 }}{ real_time:25624.020732 global_time:1947, event:`SYSCALL: madvise' (state:ENTERING_SYSCALL) tid:193980, ticks:12176431rax:0xffffffffffffffda rbx:0x681fffa0 rcx:0xffffffffffffffff rdx:0x66 rsi:0x1000 rdi:0x7feb4abff000 rbp:0x681ffe40 rsp:0x681ffde0 r8:0xffffffff r9:0x0 r10:0x801000 r11:0x246 r12:0x7ffcb4ab6920 r13:0x0 r14:0xffffffffffffffc0 r15:0x7feb5cbc0000 rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x1c fs_base:0x7feb5a464380 gs_base:0x0}=== Start rr backtrace:rr(_ZN2rr13dump_rr_stackERNS_8ScopedFdE+0x5b) [0x55b623601d3b]rr(_ZN2rr15emergency_debugEPNS_4TaskE+0x1b5) [0x55b6234c1325]rr(+0xc3b25) [0x55b6234c1b25]rr(+0xc4c27) [0x55b6234c2c27]rr(+0xc4c64) [0x55b6234c2c64]rr(+0x12de3f) [0x55b62352be3f]rr(_ZN2rr19rec_process_syscallEPNS_10RecordTaskE+0x1a5) [0x55b623518495]rr(_ZN2rr13RecordSession21syscall_state_changedEPNS_10RecordTaskEPNS0_9StepStateE+0x9f8) [0x55b6234fcf98]rr(_ZN2rr13RecordSession11record_stepEv+0x619) [0x55b623500aa9]rr(_ZN2rr13RecordCommand3runERSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS7_EE+0x1021) [0x55b6234f2cc1]rr(main+0x1ba) [0x55b62342708a]/lib64/libc.so.6(+0x35b5) [0x7fcd1fbe45b5]/lib64/libc.so.6(__libc_start_main+0x88) [0x7fcd1fbe4668]rr(_start+0x25) [0x55b623428665]=== End rr backtraceLaunch debugger with 'gdb' '-l' '10000' '-ex' 'set sysroot /' '-ex' 'target extended-remote 127.0.0.1:62908' '/usr/share/discord-canary-openasar/DiscordCanary' ^C real 252m29.853suser 0m0.159ssys 0m0.368s My Environment 1. #!/usr/bin/env sh rpm -qi \ $(rpm -qf $(command -v rr)) \ $(rpm -qf /usr/share/discord-canary-openasar/DiscordCanary) 2. - Name : rrVersion : 5.9.0Release : 4.fc43Architecture: x86_64Install Date: Sat 20 Dec 2025 13:01:56 GMTSize : 4383412Signature : RSA/SHA256, Tue 12 Aug 2025 01:07:38 BST, Key ID 829b606631645531Source RPM : rr-5.9.0-4.fc43.src.rpmBuild Date : Tue 12 Aug 2025 01:00:24 BSTBuild Host : buildvm-x86-16.rdu3.fedoraproject.orgPackager : Fedora ProjectVendor : Fedora ProjectURL : http://rr-project.orgBug URL : https://bugz.fedoraproject.org/rr - Name : discord-canary-openasarVersion : 0.0.838Release : 1.fc43Architecture: x86_64Install Date: Sat 20 Dec 2025 12:27:48 GMTSize : 269104501Signature : EdDSA/SHA256, Sat 20 Dec 2025 01:50:31 GMT, Key ID e43dbfe05c4f92a3 EdDSA/SHA256, Sat 20 Dec 2025 01:50:31 GMT, Key ID e43dbfe05c4f92a3Source RPM : discord-canary-openasar-0.0.838-1.fc43.src.rpmBuild Date : Sat 20 Dec 2025 01:48:20 GMTBuild Host : 2a229bc7c1f5Vendor : TerraURL : https://github.com/GooseMod/OpenAsar — Reply to this email directly, view it on GitHub <#4036>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AACPSBGI7BXHKJV6HVHUEIL4CXRZZAVCNFSM6AAAAACPUV577SVHI2DSMVQWIX3LMV43ASLTON2WKOZTG42TANJVGA4TAOI> . 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[RokeJulianLockhart]

@khuey, thanks! I'd rather not compile from source, so do you happen to know what version that shall be released in? I can wait for it to be released to Fedora's repositories, to confirm.