Date: Mon, 19 Oct 2015 18:15:30 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-wireless@FreeBSD.org Subject: [Bug 203875] Kernel panic when destroying wlan0 iwn 6205 Message-ID: <bug-203875-21060@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203875 Bug ID: 203875 Summary: Kernel panic when destroying wlan0 iwn 6205 Product: Base System Version: 11.0-CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: wireless Assignee: freebsd-wireless@FreeBSD.org Reporter: tim@orgizm.net Kernel panics when I do "ifconfig wlan0 destroy". running 11-CURRENT r289562 on a Thinkpad x220t. Panic happens both when wlan0 is part of lagg interface or when it is not. Also wpa_supplicant won't work unless I wait for 10sec after creating the interface. core.txt.1: http://tim.tek42.de/core.txt.1 And I get this lock order reversal message when creating a lagg interface: wlan0: Ethernet address: a0:88:b4:97:62:b8 Created wlan(4) interfaces: wlan0. Created clone interfaces: lagg0. iwn0: iwn_read_firmware: ucode rev=0x12a80601 lock order reversal: lagg0: link state changed to DOWN 1st 0xfffff80010f6fa08 if_lagg rmlock (if_lagg rmlock) @ /usr/src/sys/modules/if_lagg/../../net/if_lagg.c:1445 2nd 0xfffff80010f73190 if_addr_lock (if_addr_lock) @ /usr/src/sys/modules/if_lagg/../../net/if_lagg.c:1549 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe046272f5f0 witness_checkorder() at witness_checkorder+0xe79/frame 0xfffffe046272f670 _rw_wlock_cookie() at _rw_wlock_cookie+0x6e/frame 0xfffffe046272f6b0 lagg_ether_cmdmulti() at lagg_ether_cmdmulti+0x5c/frame 0xfffffe046272f6f0 lagg_ioctl() at lagg_ioctl+0x1175/frame 0xfffffe046272f7d0 ifioctl() at ifioctl+0x10c6/frame 0xfffffe046272f860 kern_ioctl() at kern_ioctl+0x230/frame 0xfffffe046272f8c0 sys_ioctl() at sys_ioctl+0x17e/frame 0xfffffe046272f9a0 amd64_syscall() at amd64_syscall+0x2de/frame 0xfffffe046272fab0 Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe046272fab0 --- syscall (54, FreeBSD ELF64, sys_ioctl), rip = 0x8011f316a, rsp = 0x7fffffffe3d8, rbp = 0x7fffffffe450 --- iwn0: iwn_read_firmware: ucode rev=0x12a80601 lock order reversal: 1st 0xfffff80010f6fa08 if_lagg rmlock (if_lagg rmlock) @ /usr/src/sys/modules/if_lagg/../../net/if_lagg.c:1498 2nd 0xfffffe0000f576c0 em0 (EM Core Lock) @ /usr/src/sys/dev/e1000/if_em.c:1223 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe046272f010 witness_checkorder() at witness_checkorder+0xe79/frame 0xfffffe046272f090 __mtx_lock_flags() at __mtx_lock_flags+0xa4/frame 0xfffffe046272f0e0 em_ioctl() at em_ioctl+0x94/frame 0xfffffe046272f120 lagg_port_ioctl() at lagg_port_ioctl+0xde/frame 0xfffffe046272f190 if_addmulti() at if_addmulti+0x253/frame 0xfffffe046272f210 lagg_ether_cmdmulti() at lagg_ether_cmdmulti+0x158/frame 0xfffffe046272f250 lagg_ioctl() at lagg_ioctl+0xed/frame 0xfffffe046272f330 if_addmulti() at if_addmulti+0x253/frame 0xfffffe046272f3b0 in6_mc_join_locked() at in6_mc_join_locked+0x1a6/frame 0xfffffe046272f440 in6_joingroup() at in6_joingroup+0x75/frame 0xfffffe046272f480 in6_update_ifa() at in6_update_ifa+0x1228/frame 0xfffffe046272f620 in6_ifattach() at in6_ifattach+0x45a/frame 0xfffffe046272f7d0 ifioctl() at ifioctl+0xf2b/frame 0xfffffe046272f860 kern_ioctl() at kern_ioctl+0x230/frame 0xfffffe046272f8c0 sys_ioctl() at sys_ioctl+0x17e/frame 0xfffffe046272f9a0 amd64_syscall() at amd64_syscall+0x2de/frame 0xfffffe046272fab0 Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe046272fab0 --- syscall (54, FreeBSD ELF64, sys_ioctl), rip = 0x8011f316a, rsp = 0x7fffffffe448, rbp = 0x7fffffffe4a0 --- Starting Network: lo0 em0 wlan0 lagg0. ----------- /boot/loader.conf: autoboot_delay="3" zfs_load="YES" i915kms_load="YES" usb_quirk_load="YES" kern.vty="vt" hint.p4tcc.0.disabled=1 hint.p4tcc.1.disabled=1 hint.acpi_throttle.0.disabled=1 hint.acpi_throttle.1.disabled=1 kern.hz=100 drm.i915.enable_rc6=7 hint.ahcich.0.pm_level=5 hint.ahcich.1.pm_level=5 #hint.ehci.0.wake=1 #hint.ehci.1.wake=1 vfs.zfs.arc_max="8192M" acpi_ibm_load="YES" cuse4bsd_load="YES" hint.psm.0.flags="0x3000" hw.psm.synaptics_support=1 ---------- root@xolotl:~ # uname -a FreeBSD xolotl.youpr0n.org 11.0-CURRENT FreeBSD 11.0-CURRENT #0 r289562: Mon Oct 19 15:59:05 CEST 2015 root@xolotl.youpr0n.org:/usr/obj/usr/src/sys/GENERIC amd64 -- You are receiving this mail because: You are the assignee for the bug.
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