Date: Thu, 11 Jun 2020 19:55:55 +0000 From: bugzilla-noreply@freebsd.org To: wireless@FreeBSD.org Subject: [Bug 230785] Page fault when if_ath module is unloaded Message-ID: <bug-230785-21060-OKMVVnBVFt@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-230785-21060@https.bugs.freebsd.org/bugzilla/> References: <bug-230785-21060@https.bugs.freebsd.org/bugzilla/>
next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D230785 --- Comment #1 from Ali Abdallah <ali.abdallah@suse.com> --- I had a closer look into the issue I'm having. The detaching order of the various if_ath* and ath* modules is broken. #0 __curthread () at /usr/src/sys/amd64/include/pcpu.h:234 #1 doadump (textdump=3D0) at /usr/src/sys/kern/kern_shutdown.c:371 #2 0xffffffff802f5a4b in db_dump (dummy=3D<optimized out>, dummy2=3D<optim= ized out>, dummy3=3D<unavailable>, dummy4=3D<unavailable>) at /usr/src/sys/ddb/db_command.c:574 #3 0xffffffff802f5819 in db_command (last_cmdp=3D<optimized out>, cmd_table=3D<optimized out>, dopager=3D1) at /usr/src/sys/ddb/db_command.c:= 481 #4 0xffffffff802f5594 in db_command_loop () at /usr/src/sys/ddb/db_command.c:534 #5 0xffffffff802f87ef in db_trap (type=3D<optimized out>, code=3D<optimize= d out>) at /usr/src/sys/ddb/db_main.c:252 #6 0xffffffff80431e2a in kdb_trap (type=3D3, code=3D0, tf=3D0xfffffe003d98= 5100) at /usr/src/sys/kern/subr_kdb.c:693 #7 0xffffffff806d59dc in trap (frame=3D0xfffffe003d985100) at /usr/src/sys/amd64/amd64/trap.c:621 #8 <signal handler called> #9 kdb_enter (why=3D0xffffffff8079127e "panic", msg=3D<optimized out>) at /usr/src/sys/kern/subr_kdb.c:479 #10 0xffffffff803e586a in vpanic (fmt=3D<optimized out>, ap=3D<optimized ou= t>) at /usr/src/sys/kern/kern_shutdown.c:866 #11 0xffffffff803e56a3 in panic (fmt=3D0xffffffff80865248 <vt_conswindow+16> "m\201y\200\377\377\377\377") at /usr/src/sys/kern/kern_shutdown.c:804 #12 0xffffffff8067fae7 in vm_fault_hold (map=3D0xfffff80002001000, vaddr=3D<optimized out>, fault_type=3D4 '\004', fault_flags=3D<optimized ou= t>, m_hold=3D0x0) at /usr/src/sys/vm/vm_fault.c:614 #13 0xffffffff8067d4b0 in vm_fault (map=3D0xfffff80002001000, vaddr=3D<opti= mized out>, fault_type=3D4 '\004', fault_flags=3D0) at /usr/src/sys/vm/vm_fault.c= :562 #14 0xffffffff806d5ff4 in trap_pfault (frame=3D0xfffffe003d985590, usermode= =3D0) at /usr/src/sys/amd64/amd64/trap.c:846 #15 0xffffffff806d54cf in trap (frame=3D0xfffffe003d985590) at /usr/src/sys/amd64/amd64/trap.c:443 #16 <signal handler called> #17 0xffffffff811bf0c0 in ?? () #18 0xffffffff810b157a in ath_intr (arg=3D0xfffffe00003e4000) at /usr/src/sys/dev/ath/if_ath.c:2106 #19 0xffffffff803af284 in intr_event_execute_handlers (p=3D<optimized out>, ie=3D<optimized out>) at /usr/src/sys/kern/kern_intr.c:1129 #20 ithread_execute_handlers (p=3D<optimized out>, ie=3D<optimized out>) at /usr/src/sys/kern/kern_intr.c:1142 #21 ithread_loop (arg=3D<optimized out>) at /usr/src/sys/kern/kern_intr.c:1= 222 #22 0xffffffff803abdc3 in fork_exit (callout=3D0xffffffff803af0b0 <ithread_= loop>, arg=3D0xfffff800027e94c0, frame=3D0xfffffe003d985ac0) at /usr/src/sys/kern/kern_fork.c:1065 #23 <signal handler called> (kgdb) frame 18 #18 0xffffffff810b157a in ath_intr (arg=3D0xfffffe00003e4000) at /usr/src/sys/dev/ath/if_ath.c:2106 l 2106 if (!ath_hal_intrpend(ah)) { /* shared irq, not = for us */ (kgdb) print ah->ah_isInterruptPending $1 =3D (HAL_BOOL (*)(struct ath_hal *)) 0xffffffff811bf0c0 # kldstat=20 Id Refs Address Size Name 1 79 0xffffffff80200000 e81700 kernel 4 11 0xffffffff81089000 1c890 ath_hal.ko 5 3 0xffffffff810a6000 60c40 ath_main.ko 6 3 0xffffffff81107000 1c20 ath_dfs.ko 7 9 0xffffffff81109000 aea68 wlan.ko 8 3 0xffffffff811b8000 6688 ath_rate.ko 9 2 0xffffffff811bf000 8ad98 ath_hal_ar9300.ko 10 2 0xffffffff8124a000 52058 ath_hal_ar5416.ko 11 3 0xffffffff8129d000 39578 ath_hal_ar5212.ko 12 2 0xffffffff812d7000 15d38 ath_hal_ar5211.ko 13 2 0xffffffff812ed000 10938 ath_hal_ar5210.ko The 0xffffffff811bf0c0 (ar9300_is_interrupt_pending) belongs to the module (ath_hal_ar9300) that has been just unloaded. --=20 You are receiving this mail because: You are the assignee for the bug.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-230785-21060-OKMVVnBVFt>