Date: Tue, 13 Feb 2018 00:42:23 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 225450] 11.1-* panics on AMD Opteron 2k due to EARLY_AP_STARTUP Message-ID: <bug-225450-8-sRuDDWsdsA@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-225450-8@https.bugs.freebsd.org/bugzilla/> References: <bug-225450-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=225450 --- Comment #18 from Pablo Ruiz <pablo.ruiz@gmail.com> --- I've tried the following patch: diff --git a/sys/x86/x86/delay.c b/sys/x86/x86/delay.c index 8cbe6012a96..00dfff48c19 100644 --- a/sys/x86/x86/delay.c +++ b/sys/x86/x86/delay.c @@ -70,7 +70,7 @@ delay_tc(int n) func = get_tsc; mask = ~0u; } else { - if (tc->tc_quality <= 0) + if (tc->tc_quality <= 0 || n == 1) return (0); func = tc->tc_get_timecount; mask = tc->tc_counter_mask; diff --git a/sys/x86/x86/mp_x86.c b/sys/x86/x86/mp_x86.c index 04975dd8a2e..c2a90e9a7d4 100644 --- a/sys/x86/x86/mp_x86.c +++ b/sys/x86/x86/mp_x86.c @@ -952,7 +952,7 @@ init_secondary_tail(void) #endif mtx_unlock_spin(&ap_boot_mtx); -while(1); +//while(1); /* Wait until all the AP's are up. */ while (atomic_load_acq_int(&smp_started) == 0) ..... But I got to 'db' prompt to: cpu0 BSP: ID: 0x00000000 VER: 0x80050010 LDR: 0x00000000 DFR: 0xffffffff lint0: 0x00010700 lint1: 0x00000400 TPR: 0x00000000 SVR: 0x000001ff timer: 0x000100ef therm: 0x00010000 err: 0x000000f0 pmc: 0x00010400 AMD ext features: 0x00010003 AMD elvt0: 0x00010000 SMP: AP CPU #1 Launched! cpu1 AP: FFa tFa FFa FFa Fa kFernel trap 12 with interrupts disabled Fatal trap 12: page fault while in kernel mode cpuid = 2; apic id = 02 fault virtual address = 0x441 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff80ffb704 stack pointer = 0x28:0xfffffe001b97ba90 frame pointer = 0x28:0xfffffe001b97baa0 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = resume, IOPL = 0 current process = 11 (idle: cpu2) [ thread pid 11 tid 100005 ] Stopped at spinlock_exit+0x14: movq 0x440(%rbx),%rax db> show thread Thread 100005 at 0xfffff8000332c000: proc (pid 11): 0xfffff80003328000 name: idle: cpu2 stack: 0xfffffe001b9a6000-0xfffffe001b9a9fff flags: 0x40024 pflags: 0x200000 state: CAN RUN priority: 255 container lock: sched lock 0 (0xffffffff827ee880) db> bt Tracing pid 11 tid 100005 td 0xfffff8000332c000 spinlock_exit() at spinlock_exit+0x14/frame 0xfffffe001b97baa0 _mtx_lock_spin_cookie() at _mtx_lock_spin_cookie+0xa5/frame 0xfffffe001b97bb10 i8254_delay() at i8254_delay+0x143/frame 0xfffffe001b97bb50 _mtx_lock_spin_cookie() at _mtx_lock_spin_cookie+0xa5/frame 0xfffffe001b97bbc0 i8254_delay() at i8254_delay+0x143/frame 0xfffffe001b97bc00 _mtx_lock_spin_cookie() at _mtx_lock_spin_cookie+0xa5/frame 0xfffffe001b97bc70 i8254_delay() at i8254_delay+0x143/frame 0xfffffe001b97bcb0 _mtx_lock_spin_cookie() at _mtx_lock_spin_cookie+0xa5/frame 0xfffffe001b97bd20 i8254_delay() at i8254_delay+0x143/frame 0xfffffe001b97bd60 _mtx_lock_spin_cookie() at _mtx_lock_spin_cookie+0xa5/frame 0xfffffe001b97bdd0 i8254_delay() at i8254_delay+0x143/frame 0xfffffe001b97be10 _mtx_lock_spin_cookie() at _mtx_lock_spin_cookie+0xa5/frame 0xfffffe001b97be80 i8254_delay() at i8254_delay+0x143/frame 0xfffffe001b97bec0 _mtx_lock_spin_cookie() at _mtx_lock_spin_cookie+0xa5/frame 0xfffffe001b97bf30 i8254_delay() at i8254_delay+0x143/frame 0xfffffe001b97bf70 _mtx_lock_spin_cookie() at _mtx_lock_spin_cookie+0xa5/frame 0xfffffe001b97bfe0 i8254_delay() at i8254_delay+0x143/frame 0xfffffe001b97c020 _mtx_lock_spin_cookie() at _mtx_lock_spin_cookie+0xa5/frame 0xfffffe001b97c090 .... -- You are receiving this mail because: You are the assignee for the bug.
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