Date: Tue, 02 Mar 2021 02:57:57 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 253687] [hwpmc] kernel panic when listing available hardware performance counters Message-ID: <bug-253687-227-QYcLBLMBuN@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-253687-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253687 --- Comment #2 from Zhenlei Huang <zlei.huang@gmail.com> --- (kgdb) bt #0 __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:55 #1 doadump (textdump=<optimized out>) at /usr/src/sys/kern/kern_shutdown.c:399 #2 0xffffffff80c08e56 in kern_reboot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:486 #3 0xffffffff80c092d0 in vpanic (fmt=<optimized out>, ap=<optimized out>) at /usr/src/sys/kern/kern_shutdown.c:919 #4 0xffffffff80c090d3 in panic (fmt=<unavailable>) at /usr/src/sys/kern/kern_shutdown.c:843 #5 0xffffffff810891a7 in trap_fatal (frame=0xfffffe007c8ed8f0, eva=12) at /usr/src/sys/amd64/amd64/trap.c:915 #6 0xffffffff810891ff in trap_pfault (frame=frame@entry=0xfffffe007c8ed8f0, usermode=false, signo=<optimized out>, signo@entry=0x0, ucode=<optimized out>, ucode@entry=0x0) at /usr/src/sys/amd64/amd64/trap.c:732 #7 0xffffffff8108885d in trap (frame=0xfffffe007c8ed8f0) at /usr/src/sys/amd64/amd64/trap.c:398 #8 <signal handler called> #9 pmc_syscall_handler (td=<optimized out>, syscall_args=<optimized out>) at /usr/src/sys/dev/hwpmc/hwpmc_mod.c:3679 #10 0xffffffff8108a0f5 in syscallenter (td=0xfffffe007d395700) at /usr/src/sys/amd64/amd64/../../kern/subr_syscall.c:161 #11 amd64_syscall (td=0xfffffe007d395700, traced=0) at /usr/src/sys/amd64/amd64/trap.c:1156 #12 <signal handler called> #13 0x00000008009bc48a in ?? () Backtrace stopped: Cannot access memory at address 0x7fffffffe9c8 (kgdb) frame 9 #9 pmc_syscall_handler (td=<optimized out>, syscall_args=<optimized out>) at /usr/src/sys/dev/hwpmc/hwpmc_mod.c:3679 3679 if ((error = pcd->pcd_describe(cpu, ari, p, &pm)) != 0) (kgdb) print pcd $5 = (struct pmc_classdep *) 0x0 (kgdb) -- You are receiving this mail because: You are the assignee for the bug.help
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