check_ticks_consistency() intermittently failing on my new AMD PC

[hsingh-moz]

I am trying to record a rr trace on my new AMD workstation (Zen3 threadripper pro) and it records without any isssues but when I am trying to record it; it intermittently fails in check_ticks_consistency() check (see below). This PC is running linux mint version Linux Mint 21.1 Cinnamon

Error message: _[FATAL src/ReplaySession.cc:1184:check_ticks_consistency()] (task 277857 (rec:268583) at time 648470) -> Assertion ticks_now == trace_ticks' failed to hold. ticks mismatch for 'SYSCALL: futex'; expected 304402, got 304339 Tail of trace dump: { real_time:33382.950088 global_time:648450, event:SYSCALLBUF_ABORT_COMMIT' tid:268580, ticks:26306386 } { real_time:33382.950123 global_time:648451, event:SYSCALL: rrcall_notify_syscall_hook_exit' (state:ENTERING_SYSCALL) tid:268580, ticks:26306401 rax:0xffffffffffffffda rbx:0x7fed172fffa0 rcx:0xffffffffffffffff rdx:0x40000000 rsi:0x7fed17a45820 rdi:0x17 rbp:0x7fed17a458a0 rsp:0x7fed172ffe10 r8:0x0 r9:0x1 r10:0x7fed17a458d8 r11:0x246 r12:0x4 r13:0x19 r14:0x7fed17a4b568 r15:0x17 rip:0x70000005 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x3ea fs_base:0x7fed17a4b640 gs_base:0x0 } { real_time:33382.950126 global_time:648452, event:SYSCALLBUF_RESET' tid:268580, ticks:26306401 } _

CPU information:

Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 48 bits physical, 48 bits virtual Byte Order: Little Endian CPU(s): 64 On-line CPU(s) list: 0-63 Vendor ID: AuthenticAMD Model name: AMD Ryzen Threadripper PRO 5975WX 32-Cores CPU family: 25 Model: 8 Thread(s) per core: 2 Core(s) per socket: 32 Socket(s): 1 Stepping: 2 Frequency boost: enabled CPU max MHz: 7006.6401 CPU min MHz: 1800.0000

[khuey]

Any ideas here @glandium?

[glandium]

Any ideas here @glandium?

Nope

[khuey]

Ok. @hsingh-moz does the rr test suite (i.e. make check) pass on this system?