[FATAL src/ReplayTask.cc:130:validate_regs()]
I maintainer di solito rispondono entro 2 giorni
Nessuno ha ancora preso questa issue.
Valutazione
- Difficoltà
- 5/5
- Tempo stimato
- Più di una settimana
- Idoneità per principianti
- 25/100
- Tipo di issue
- Bug
- Chiarezza
- Da chiarire
- Stato di attività
- Ferma
- Stack tecnologico
- cpp, linux
- Ambito
- operating-systems, reverse-engineering, tooling
Direzione di ricerca
Start at src/ReplayTask.cc:130 and validate_regs(), then reproduce with rr replay -a using the Firefox Nightly recording described in the report. Compare the replay/record register mismatch and the trace dump around global time 72658; done means the recording replays without the fatal assertion.
Scritto dal modello di indicizzazione a partire dal testo della issue.
Descrizione
I am hitting this issue when trying to replay (rr replay -a) recordings I've made. The recordings are made by using a Firefox Nightly (139) debug build and visiting tiendaflores.cl waiting ~15 seconds and then closing the browser. No rr issues are observed when recording. When replaying (with -a) is when I have issues. I am using the latest rr commit 18258fa.
[FATAL src/ReplayTask.cc:130:validate_regs()]
(task 33031 (rec:32166) at time 72658)
-> Assertion `!comparison.mismatch_count' failed to hold. Mismatched registers, replay vs rec: r15 0x7a21836911c0 != 0x7a219409f680
Tail of trace dump:
{
real_time:17289.017773 global_time:72638, event:`SYSCALL: sched_yield' (state:EXITING_SYSCALL) tid:32345, ticks:7235663
rax:0x0 rbx:0x7 rcx:0xffffffffffffffff rdx:0x100 rsi:0x80 rdi:0x7a219b163000 rbp:0x7a21901fd9c0 rsp:0x7a21901fd628 r8:0x7a21901f7fd0 r9:0x0 r10:0x1 r11:0x246 r12:0x7a21901fd720 r13:0x7a21901fd910 r14:0x7a219b163000 r15:0x7a21901fd630 rip:0x7a21c41984fb eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x18 fs_base:0x7a2190200640 gs_base:0x0
}
{
real_time:17289.017813 global_time:72639, event:`SYSCALL: sched_yield' (state:ENTERING_SYSCALL) tid:32345, ticks:7235671
rax:0xffffffffffffffda rbx:0x8 rcx:0xffffffffffffffff rdx:0x100 rsi:0x80 rdi:0x7a219b163000 rbp:0x7a21901fd9c0 rsp:0x7a21901fd628 r8:0x7a21901f7fd0 r9:0x0 r10:0x1 r11:0x246 r12:0x7a21901fd720 r13:0x7a21901fd910 r14:0x7a219b163000 r15:0x7a21901fd630 rip:0x7a21c41984fb eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x18 fs_base:0x7a2190200640 gs_base:0x0
}
{
real_time:17289.018012 global_time:72640, event:`SYSCALLBUF_FLUSH' tid:32343, ticks:1599060
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'gettid', ret:0x7e57, size:0x10 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
}
{
real_time:17289.018018 global_time:72641, event:`SYSCALL: sched_yield' (state:ENTERING_SYSCALL) tid:32343, ticks:1599060
rax:0xffffffffffffffda rbx:0x7 rcx:0xffffffffffffffff rdx:0x2 rsi:0x0 rdi:0x0 rbp:0x7a21959ff130 rsp:0x7a21959fd438 r8:0x0 r9:0x1 r10:0x1 r11:0x246 r12:0x7a21959fd510 r13:0x7a21959ff140 r14:0x8 r15:0x7a217f34cd00 rip:0x7a21c41984fb eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x18 fs_base:0x7a2195a00640 gs_base:0x0
}
{
real_time:17289.018021 global_time:72642, event:`SYSCALLBUF_RESET' tid:32343, ticks:1599060
}
{
real_time:17289.018069 global_time:72643, event:`SYSCALL: futex' (state:EXITING_SYSCALL) tid:32197, ticks:65436
rax:0x0 rbx:0x7a21a01fffa0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x189 rdi:0x7a21b0389fa8 rbp:0x7a21b0389f80 rsp:0x7a21a01ffdf0 r8:0x0 r9:0xffffffff r10:0x0 r11:0x246 r12:0x0 r13:0x0 r14:0x14 r15:0x7a21b0389fa8 rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0xca fs_base:0x7a21ad261640 gs_base:0x0
}
{
real_time:17289.018184 global_time:72644, event:`SYSCALLBUF_FLUSH' tid:32197, ticks:90923
{ syscall:'futex', ret:0x0, size:0x14 }
{ syscall:'access', ret:0xfffffffffffffffe, size:0x10 }
{ syscall:'access', ret:0xfffffffffffffffe, size:0x10 }
{ syscall:'access', ret:0xfffffffffffffffe, size:0x10 }
{ syscall:'access', ret:0xfffffffffffffffe, size:0x10 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
}
{
real_time:17289.018189 global_time:72645, event:`SYSCALL: futex' (state:ENTERING_SYSCALL) tid:32197, ticks:90923
rax:0xffffffffffffffda rbx:0x7a21a01fffa0 rcx:0xffffffffffffffff rdx:0x0 rsi:0x189 rdi:0x7a21b0389fac rbp:0x7a21b0389f80 rsp:0x7a21a01ffdf0 r8:0x0 r9:0xffffffff r10:0x0 r11:0x246 r12:0x0 r13:0x0 r14:0x17 r15:0x7a21b0389fac rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0xca fs_base:0x7a21ad261640 gs_base:0x0
}
{
real_time:17289.018193 global_time:72646, event:`SYSCALLBUF_RESET' tid:32197, ticks:90923
}
{
real_time:17289.018279 global_time:72647, event:`EXIT' tid:32346, ticks:758
{ tid:32346, addr:0x7f8677e00910, length:0x4 }
}
{
real_time:17289.018364 global_time:72648, event:`EXIT' tid:32349, ticks:280627
{ tid:32349, addr:0x7f8675a00910, length:0x4 }
}
{
real_time:17289.018409 global_time:72649, event:`EXIT' tid:32347, ticks:210832
{ tid:32347, addr:0x7f8677200910, length:0x4 }
}
{
real_time:17289.018472 global_time:72650, event:`EXIT' tid:32348, ticks:590798
}
{
real_time:17289.024946 global_time:72651, event:`SYSCALLBUF_FLUSH' tid:32162, ticks:4018613934
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'write', ret:0x1, size:0x10, desched:1 }
{ syscall:'futex', ret:0x1, size:0x14 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'poll', ret:0x2, size:0x38 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'recvmsg', ret:0x24, size:0x10c, desched:1 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'futex', ret:0x1, size:0x14 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'sendmsg', ret:0x84, size:0x10, desched:1 }
{ syscall:'read', ret:0x1, size:0x11, desched:1 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'sendmsg', ret:0x14, size:0x10, desched:1 }
{ syscall:'poll', ret:0x0, size:0x38 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'write', ret:0x1, size:0x10, desched:1 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'poll', ret:0x1, size:0x38 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'read', ret:0x1, size:0x11, desched:1 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'poll', ret:0x0, size:0x38 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'write', ret:0x1, size:0x10, desched:1 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'poll', ret:0x1, size:0x38 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'read', ret:0x1, size:0x11, desched:1 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'poll', ret:0x0, size:0x38 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'write', ret:0x1, size:0x10, desched:1 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
{ syscall:'gettimeofday', ret:0x0, size:0x20 }
}
{
real_time:17289.024957 global_time:72652, event:`SCHED' tid:32162, ticks:4018613934
rax:0x90740 rbx:0x7a21c3d00000 rcx:0x7a21c3801001 rdx:0x0 rsi:0x90740 rdi:0x7a217f390740 rbp:0x7ffcd3200a10 rsp:0x7ffcd32009e0 r8:0x7a21c392d820 r9:0x7a646bca r10:0x7a21b4cf64b0 r11:0x131 r12:0x7a217f300000 r13:0x90740 r14:0x7a217f390740 r15:0x0 rip:0x5c16f94d13e7 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0xffffffffffffffff fs_base:0x7a21c4065780 gs_base:0x7a1c00000000
}
{
real_time:17289.024961 global_time:72653, event:`SYSCALLBUF_RESET' tid:32162, ticks:4018613934
}
{
real_time:17289.026434 global_time:72654, event:`SYSCALL: poll' (state:EXITING_SYSCALL) tid:32166, ticks:285502
rax:0x1 rbx:0x7a21af9fffa0 rcx:0xffffffffffffffff rdx:0x7530 rsi:0x3 rdi:0x7a21b01ffcb0 rbp:0x7a21b01ffd10 rsp:0x7a21af9ffdf0 r8:0x0 r9:0xff r10:0x7a217f300018 r11:0x246 r12:0x7a21c3916501 r13:0x7a21b01ffcc0 r14:0x7a21b01ffcb0 r15:0x3 rip:0x70000002 eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x7 fs_base:0x7a21b0200640 gs_base:0x0
{ tid:32166, addr:0x7a21b01ffcb0, length:0x18 }
}
{
real_time:17289.026494 global_time:72655, event:`SYSCALL: ioctl' (state:ENTERING_SYSCALL) tid:32166, ticks:285524
rax:0xffffffffffffffda rbx:0x7a21c3934700 rcx:0xffffffffffffffff rdx:0x7a21b01ffc9c rsi:0x541b rdi:0x10 rbp:0x7a21b01ffcd0 rsp:0x7a21b01ffc10 r8:0x7a21c3934740 r9:0x7a21c3934758 r10:0x7a217f300018 r11:0x246 r12:0x10 r13:0x2 r14:0x7a21c3934740 r15:0x7a21b12f4c50 rip:0x7a21c3b1a94f eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x10 fs_base:0x7a21b0200640 gs_base:0x0
}
{
real_time:17289.026523 global_time:72656, event:`SYSCALL: ioctl' (state:EXITING_SYSCALL) tid:32166, ticks:285524
rax:0x0 rbx:0x7a21c3934700 rcx:0xffffffffffffffff rdx:0x7a21b01ffc9c rsi:0x541b rdi:0x10 rbp:0x7a21b01ffcd0 rsp:0x7a21b01ffc10 r8:0x7a21c3934740 r9:0x7a21c3934758 r10:0x7a217f300018 r11:0x246 r12:0x10 r13:0x2 r14:0x7a21c3934740 r15:0x7a21b12f4c50 rip:0x7a21c3b1a94f eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x10 fs_base:0x7a21b0200640 gs_base:0x0
{ tid:32166, addr:0x7a21b01ffc9c, length:0x4 }
}
{
real_time:17289.026586 global_time:72657, event:`SYSCALLBUF_FLUSH' tid:32166, ticks:286052
{ syscall:'clock_gettime', ret:0x0, size:0x20 }
{ syscall:'recvmsg', ret:0x8, size:0xe0, desched:1 }
{ syscall:'sendmsg', ret:0x8, size:0x10, desched:1 }
}
{
real_time:17289.026591 global_time:72658, event:`SYSCALL: ioctl' (state:ENTERING_SYSCALL) tid:32166, ticks:286052
rax:0xffffffffffffffda rbx:0x2 rcx:0xffffffffffffffff rdx:0x7a21b01ffc9c rsi:0x541b rdi:0x10 rbp:0x7a21b01ffcd0 rsp:0x7a21b01ffc10 r8:0x1000 r9:0xff r10:0x7a217f300018 r11:0x246 r12:0x10 r13:0x0 r14:0x0 r15:0x7a219409f680 rip:0x7a21c3b1a94f eflags:0x246 cs:0x33 ss:0x2b ds:0x0 es:0x0 fs:0x0 gs:0x0 orig_rax:0x10 fs_base:0x7a21b0200640 gs_base:0x0
}
{
real_time:17289.026594 global_time:72659, event:`SYSCALLBUF_RESET' tid:32166, ticks:286052
}
=== Start rr backtrace:
rr(_ZN2rr13dump_rr_stackERNS_8ScopedFdE+0x5b)[0x591ef3d0ec2b]
rr(_ZN2rr15emergency_debugEPNS_4TaskE+0x152)[0x591ef3be0e22]
rr(+0xdf992)[0x591ef3be1992]
rr(+0xdff9f)[0x591ef3be1f9f]
rr(_ZN2rr10ReplayTask13validate_regsEj+0x1ed)[0x591ef3c8fcdd]
rr(_ZN2rr13ReplaySession13enter_syscallEPNS_10ReplayTaskERKNS0_15StepConstraintsE+0x3da)[0x591ef3c7a12a]
rr(_ZN2rr13ReplaySession18try_one_trace_stepEPNS_10ReplayTaskERKNS0_15StepConstraintsE+0xe3)[0x591ef3c819a3]
rr(_ZN2rr13ReplaySession11replay_stepERKNS0_15StepConstraintsE+0x21d)[0x591ef3c838ed]
rr(_ZN2rr13ReplayCommand3runERSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS7_EE+0x167c)[0x591ef3c76d1c]
rr(main+0x1a1)[0x591ef3b573c1]
/lib/x86_64-linux-gnu/libc.so.6(+0x29d90)[0x708a1fe29d90]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x80)[0x708a1fe29e40]
rr(_start+0x25)[0x591ef3b59e55]
=== End rr backtrace
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Difficoltà 2/5 1-3 ore Idoneità per principianti 82/100
LadybugDB/ladybug#1311 · 1 commento ·
I maintainer di solito rispondono entro 1 giorno
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Difficoltà 2/5 1-3 ore Idoneità per principianti 75/100
I maintainer di solito rispondono entro 1 giorno