From nobody Fri Jul 12 15:19:01 2024 X-Original-To: freebsd-usb@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4WLFcR0Wzgz5QbgL; Fri, 12 Jul 2024 15:19:03 +0000 (UTC) (envelope-from SRS0=8UWh=OM=klop.ws=ronald-lists@realworks.nl) Received: from smtp-relay-int.realworks.nl (smtp-relay-int.realworks.nl [194.109.157.24]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4WLFcQ2LdBz4LFD; Fri, 12 Jul 2024 15:19:02 +0000 (UTC) (envelope-from SRS0=8UWh=OM=klop.ws=ronald-lists@realworks.nl) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=klop.ws header.s=rw2 header.b=e5vbs0TP; dmarc=pass (policy=quarantine) header.from=klop.ws; spf=pass (mx1.freebsd.org: domain of "SRS0=8UWh=OM=klop.ws=ronald-lists@realworks.nl" designates 194.109.157.24 as permitted sender) smtp.mailfrom="SRS0=8UWh=OM=klop.ws=ronald-lists@realworks.nl" Date: Fri, 12 Jul 2024 17:19:01 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=klop.ws; s=rw2; t=1720797541; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=AgaCjhe0WnP8JKlxzFwHKj4PGZArZnjYo3RcaXElECU=; b=e5vbs0TPXpGywhEpsZDyyiaTDbNt9/s5aRY4VK9lfmrzlMgIYxXJPJeFCpUqq6a7dNdb7K Idd8gj4ugoaptj3Rbf1ptGuD+odFshdw1QuORZh2HTwFY9fFdumOk+SlMF3wSFbkUYgeyC uBzr0kOPYuDKv19ZjC5lMKS148iB4YtWwzAN8wtZ7f8vZ/5JFhx+TO5fZTBOE/jdgvToKL 878lLNAzMQLzyBSfIPVbfSHW1Q4riXlG2gWCL58mPlXWcwFX8FQFdf+j1FrBtRijWMNtqT jj2uOBNoPunT8giUJjMiN4F2CloM/y6j/L/wc9bP9BdINtkQO/ufAFsqjkwQhg== From: Ronald Klop To: freebsd-usb@freebsd.org, freebsd-arm@freebsd.org Message-ID: <399055758.9715.1720797541322@localhost> In-Reply-To: <254722283.8424.1720796671190@localhost> References: <254722283.8424.1720796671190@localhost> Subject: Re: panic on rpi3b: usbconfig reset List-Id: FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-usb List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-usb@freebsd.org Sender: owner-freebsd-usb@FreeBSD.org MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_9714_598260772.1720797541312" X-Mailer: Realworks (710.8) Importance: Normal X-Priority: 3 (Normal) X-Spamd-Bar: --- X-Spamd-Result: default: False [-3.20 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-0.997]; MID_RHS_NOT_FQDN(0.50)[]; DMARC_POLICY_ALLOW(-0.50)[klop.ws,quarantine]; FORGED_SENDER(0.30)[ronald-lists@klop.ws,SRS0=8UWh=OM=klop.ws=ronald-lists@realworks.nl]; R_SPF_ALLOW(-0.20)[+ip4:194.109.157.0/24]; R_DKIM_ALLOW(-0.20)[klop.ws:s=rw2]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; MIME_TRACE(0.00)[0:+,1:+,2:~]; ASN(0.00)[asn:3265, ipnet:194.109.0.0/16, country:NL]; RCVD_COUNT_ZERO(0.00)[0]; MLMMJ_DEST(0.00)[freebsd-arm@freebsd.org,freebsd-usb@freebsd.org]; ARC_NA(0.00)[]; FROM_NEQ_ENVFROM(0.00)[ronald-lists@klop.ws,SRS0=8UWh=OM=klop.ws=ronald-lists@realworks.nl]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_TWO(0.00)[2]; HAS_X_PRIO_THREE(0.00)[3]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TO_DN_NONE(0.00)[]; DKIM_TRACE(0.00)[klop.ws:+] X-Rspamd-Queue-Id: 4WLFcQ2LdBz4LFD ------=_Part_9714_598260772.1720797541312 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Van: Ronald Klop Datum: vrijdag, 12 juli 2024 17:04 Aan: freebsd-usb@freebsd.org, freebsd-arm@freebsd.org Onderwerp: panic on rpi3b: usbconfig reset > > Hi, > > Performing "usbconfig reset" on my RPI3B running 14.1-RELEASE-p2/aarch64 results in a panic. > > Here is the output on the serial console: > > login: Jul 12 13:18:35 rpi3 su[14837]: ronald to root on /dev/pts/0 > uhub0: at usbus1, port 1, addr 1 (disconnected) > ugen1.2: at usbus1 (disconnected) > uhub1: at uhub0, port 1, addr 2 (disconnected) > ugen1.3: at usbus1 (disconnected) > uhub2: at uhub1, port 1, addr 3 (disconnected) > ugen1.4: at usbus1 (disconnected) > muge0: at uhub2, port 1, addr 4 (disconnected) > muge0: warning: Failed to read register 0x120 > muge0: warning: MII is busy > muge0: warning: Failed to read register 0x120 > muge0: warning: MII is busy > muge0: warning: Failed to read register 0x120 > muge0: warning: MII is busy > muge0: warning: Failed to read register 0x120 > muge0: warning: MII is busy > muge0: warning: Failed to read register 0x120 > muge0: warning: MII is busy > muge0: warning: Failed to read register 0x120 > muge0: warning: MII is busy > muge0: warning: Failed to read register 0x120 > muge0: warning: MII is busy > muge0: warning: Failed to read register 0x120 > muge0: warning: MII is busy > muge0: warning: Failed to read register 0x120 > muge0: warning: MII is busy > muge0: warning: Failed to read register 0x120 > ukphy0: detached > muge0: warning: MII is busy > Fatal data abort: > miibus0: detached > x0: 0x0000000000000000 > x1: 0xffff0000403f44d4 > x2: 0x0000000000000000 > x3: 0xffff00000032e24c > x4: 0xffff00000088eef8 > x5: 0x0000000000000041 > x6: 0xffff00000052cee8 > x7: 0xffff0000403f43b0 > x8: 0x0000000000000053 > x9: 0xaf460225cde9dab0 > x10: 0x0000000000000001 > x11: 0x0000000000000001 > x12: 0x0000000000000001 > x13: 0x0000000000000001 > x14: 0x0000000000000000 > x15: 0x0000000000000002 > x16: 0x0000000000000000 > x17: 0xffff0000403f42b5 > x18: 0xffff0000403f45d0 > x19: 0xffffa00001980380 > x20: 0x0000000000000000 > x21: 0x0000000000000000 > x22: 0x0000000000000001 > x23: 0xffffa00001a70200 > x24: 0xffffa00001980800 > x25: 0xffff000000c5d410 > x26: 0xffffa000018045c0 > x27: 0xffff000000ca5000 > x28: 0x0000000000000000 > x29: 0xffff0000403f45d0 > sp: 0xffff0000403f45d0 > lr: 0xffff0000001dec34 > elr: 0xffff0000001dec44 > spsr: 0x0000000060000045 > far: 0x0000000000000000 > esr: 0x0000000096000004 > panic: vm_fault failed: 0xffff0000001dec44 error 1 > cpuid = 2 > time = 1720783402 > KDB: stack backtrace: > #0 0xffff000000525d3c at kdb_backtrace+0x58 > #1 0xffff0000004d0d40 at vpanic+0x198 > #2 0xffff0000004d0ba4 at panic+0x44 > #3 0xffff0000008b795c at data_abort+0x2cc > #4 0xffff000000893814 at handle_el1h_sync+0x14 > Uptime: 7m10s > Dumping 134 out of 926 MB:..3%..12%..21%..33%..42%..51%..63%..72%..81%..93% > Dump complete > Resetting system ... > > > I have a core dump and can gather more information. > The panic is repeatable. > > Regards, > Ronald. > Hi, I managed to attached the debugger to the core dump and get a backtrace. [root@rpi3 ~]# kgdb -n 1 /usr/lib/debug/boot/kernel/kernel.debug Reading symbols from /usr/lib/debug/boot/kernel/kernel.debug... Unread portion of the kernel message buffer: panic: vm_fault failed: 0xffff0000001dec44 error 1 cpuid = 2 time = 1720783402 KDB: stack backtrace: #0 0xffff000000525d3c at kdb_backtrace+0x58 #1 0xffff0000004d0d40 at vpanic+0x198 #2 0xffff0000004d0ba4 at panic+0x44 #3 0xffff0000008b795c at data_abort+0x2cc #4 0xffff000000893814 at handle_el1h_sync+0x14 Uptime: 7m10s Dumping 134 out of 926 MB:..3%..12%..21%..33%..42%..51%..63%..72%..81% Reading symbols from /boot/kernel/if_bridge.ko... Reading symbols from /usr/lib/debug//boot/kernel/if_bridge.ko.debug... Reading symbols from /boot/kernel/bridgestp.ko... Reading symbols from /usr/lib/debug//boot/kernel/bridgestp.ko.debug... Reading symbols from /boot/kernel/if_epair.ko... Reading symbols from /usr/lib/debug//boot/kernel/if_epair.ko.debug... Reading symbols from /boot/kernel/ipfw.ko... Reading symbols from /usr/lib/debug//boot/kernel/ipfw.ko.debug... Reading symbols from /boot/kernel/ipfw_nat.ko... Reading symbols from /usr/lib/debug//boot/kernel/ipfw_nat.ko.debug... Reading symbols from /boot/kernel/libalias.ko... Reading symbols from /usr/lib/debug//boot/kernel/libalias.ko.debug... Reading symbols from /boot/kernel/mac_ntpd.ko... Reading symbols from /usr/lib/debug//boot/kernel/mac_ntpd.ko.debug... Reading symbols from /boot/kernel/geom_eli.ko... Reading symbols from /usr/lib/debug//boot/kernel/geom_eli.ko.debug... Reading symbols from /boot/kernel/nullfs.ko... Reading symbols from /usr/lib/debug//boot/kernel/nullfs.ko.debug... Reading symbols from /boot/kernel/uslcom.ko... Reading symbols from /usr/lib/debug//boot/kernel/uslcom.ko.debug... Reading symbols from /boot/kernel/ucom.ko... Reading symbols from /usr/lib/debug//boot/kernel/ucom.ko.debug... Reading symbols from /boot/kernel/uplcom.ko... Reading symbols from /usr/lib/debug//boot/kernel/uplcom.ko.debug... get_curthread () at /usr/src/sys/arm64/include/pcpu.h:77 77 __asm __volatile("ldr %0, [x18]" : "=&r"(td)); (kgdb) bt #0 get_curthread () at /usr/src/sys/arm64/include/pcpu.h:77 #1 doadump (textdump=) at /usr/src/sys/kern/kern_shutdown.c:405 #2 0xffff0000004d0794 in kern_reboot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:523 #3 0xffff0000004d0dcc in vpanic (fmt=, ap=...) at /usr/src/sys/kern/kern_shutdown.c:967 #4 0xffff0000004d0ba8 in panic (fmt=0xffff000000cae000 "") at /usr/src/sys/kern/kern_shutdown.c:891 #5 0xffff0000008b7960 in data_abort (td=0xffff0000893f1c80, frame=0xffff0000403f4430, esr=2516582404, far=, lower=) at /usr/src/sys/arm64/arm64/trap.c:398 #6 #7 MIIBUS_READREG (dev=0x0, phy=1, reg=1) at ./miibus_if.h:26 #8 ukphy_status (phy=0xffffa00001980380) at /usr/src/sys/dev/mii/ukphy_subr.c:68 #9 0xffff0000001deb98 in ukphy_service (sc=0xffffa00001980380, mii=, cmd=3) at /usr/src/sys/dev/mii/ukphy.c:151 #10 0xffff0000001d5b5c in mii_pollstat (mii=mii@entry=0xffffa00001980800) at /usr/src/sys/dev/mii/mii.c:619 #11 0xffff0000002fa298 in muge_ifmedia_sts (ifp=, ifmr=0xffff0000403f4708) at /usr/src/sys/dev/usb/net/if_muge.c:2127 #12 0xffff00000061e148 in ifmedia_ioctl (ifp=0x0, ifr=0xffff0000403f4708, ifm=0x0, cmd=18446462598736175692) at /usr/src/sys/net/if_media.c:293 #13 0xffff00000071550c in get_operstate_ether (ifp=0xffffa00001363000, pstate=) at /usr/src/sys/netlink/route/iface.c:124 #14 get_operstate (ifp=0xffffa00001363000, pstate=) at /usr/src/sys/netlink/route/iface.c:181 #15 dump_iface (nw=nw@entry=0xffff0000403f4790, ifp=ifp@entry=0xffffa00001363000, hdr=hdr@entry=0xffff0000403f47d0, if_flags_mask=if_flags_mask@entry=0) at /usr/src/sys/netlink/route/iface.c:310 #16 0xffff000000714dd8 in rtnl_handle_ifevent (ifp=0xffffa00001363000, nlmsg_type=, if_flags_mask=0) at /usr/src/sys/netlink/route/iface.c:1411 #17 0xffff000000613c20 in do_link_state_change (arg=0xffffa00001363000, pending=) at /usr/src/sys/net/if.c:2206 #18 0xffff00000053e1f0 in taskqueue_run_locked (queue=queue@entry=0xffffa0000137ac00) at /usr/src/sys/kern/subr_taskqueue.c:518 #19 0xffff00000053df44 in taskqueue_run (queue=0xffffa0000137ac00) at /usr/src/sys/kern/subr_taskqueue.c:533 #20 0xffff000000481b10 in intr_event_execute_handlers (ie=0xffffa00001374a00, p=) at /usr/src/sys/kern/kern_intr.c:1205 #21 ithread_execute_handlers (ie=0xffffa00001374a00, p=) at /usr/src/sys/kern/kern_intr.c:1218 #22 ithread_loop (arg=arg@entry=0xffffa0000140f9e0) at /usr/src/sys/kern/kern_intr.c:1306 #23 0xffff00000047cdf4 in fork_exit (callout=0xffff000000481778 , arg=0xffffa0000140f9e0, frame=0xffff0000403f4a00) at /usr/src/sys/kern/kern_fork.c:1164 #24 (kgdb) I hope this makes sense to somebody. If I need to type some extra commands in the debugger please let me know. Regards, Ronald. ------=_Part_9714_598260772.1720797541312 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit  

Van: Ronald Klop <ronald-lists@klop.ws>
Datum: vrijdag, 12 juli 2024 17:04
Aan: freebsd-usb@freebsd.org, freebsd-arm@freebsd.org
Onderwerp: panic on rpi3b: usbconfig reset

Hi,

Performing "usbconfig reset" on my RPI3B running 14.1-RELEASE-p2/aarch64 results in a panic.

Here is the output on the serial console:

login: Jul 12 13:18:35 rpi3 su[14837]: ronald to root on /dev/pts/0                                                                 
uhub0: at usbus1, port 1, addr 1 (disconnected)                                                                                     
ugen1.2: <vendor 0x0424 product 0x2514> at usbus1 (disconnected)                                                                    
uhub1: at uhub0, port 1, addr 2 (disconnected)                                                                                      
ugen1.3: <vendor 0x0424 product 0x2514> at usbus1 (disconnected)                                                                    
uhub2: at uhub1, port 1, addr 3 (disconnected)                                                                                      
ugen1.4: <vendor 0x0424 product 0x7800> at usbus1 (disconnected)                                                                    
muge0: at uhub2, port 1, addr 4 (disconnected)                                                                                      
muge0: warning: Failed to read register 0x120                                                                                       
muge0: warning: MII is busy                                                                                                         
muge0: warning: Failed to read register 0x120                                                                                       
muge0: warning: MII is busy                                                                                                         
muge0: warning: Failed to read register 0x120                                                                                       
muge0: warning: MII is busy                                                                                                         
muge0: warning: Failed to read register 0x120                                                                                       
muge0: warning: MII is busy                                                                                                         
muge0: warning: Failed to read register 0x120                                                                                       
muge0: warning: MII is busy                                                                                                         
muge0: warning: Failed to read register 0x120                                                                                       
muge0: warning: MII is busy                                                                                                         
muge0: warning: Failed to read register 0x120                                                                                       
muge0: warning: MII is busy                                                                                                         
muge0: warning: Failed to read register 0x120                                                                                       
muge0: warning: MII is busy                                                                                                         
muge0: warning: Failed to read register 0x120                                                                                       
muge0: warning: MII is busy                                                                                                         
muge0: warning: Failed to read register 0x120                                                                                       
ukphy0: detached                                                                                                                    
muge0: warning: MII is busy                                                                                                         
Fatal data abort:                                                                                                                   
miibus0: detached                                     
  x0: 0x0000000000000000                                                                                                            
  x1: 0xffff0000403f44d4                                                                                                            
  x2: 0x0000000000000000                                                                                                            
  x3: 0xffff00000032e24c                                                                                                            
  x4: 0xffff00000088eef8                                                                                                            
  x5: 0x0000000000000041                                                                                                            
  x6: 0xffff00000052cee8                                                                                                            
  x7: 0xffff0000403f43b0                                                                                                            
  x8: 0x0000000000000053                                                                                                            
  x9: 0xaf460225cde9dab0                                                                                                            
 x10: 0x0000000000000001                                                                                                            
 x11: 0x0000000000000001                                                                                                            
 x12: 0x0000000000000001                                                                                                            
 x13: 0x0000000000000001                                                                                                            
 x14: 0x0000000000000000                                                                                                            
 x15: 0x0000000000000002                                                                                                            
 x16: 0x0000000000000000                                                                                                            
 x17: 0xffff0000403f42b5                                                                                                            
 x18: 0xffff0000403f45d0                                                                                                            
 x19: 0xffffa00001980380                                                                                                            
 x20: 0x0000000000000000                                                                                                            
 x21: 0x0000000000000000                                                                                                            
 x22: 0x0000000000000001                                                                                                            
 x23: 0xffffa00001a70200                                                                                                            
 x24: 0xffffa00001980800                                                                                                            
 x25: 0xffff000000c5d410                                                                                                            
 x26: 0xffffa000018045c0                                                                                                            
 x27: 0xffff000000ca5000                                                                                                            
 x28: 0x0000000000000000                                                                                                            
 x29: 0xffff0000403f45d0                                                                                                            
  sp: 0xffff0000403f45d0                                                                                                            
  lr: 0xffff0000001dec34                                                                                                            
 elr: 0xffff0000001dec44                                                                                                            
spsr: 0x0000000060000045                                                                                                            
 far: 0x0000000000000000                                                                                                            
 esr: 0x0000000096000004                                                                                                            
panic: vm_fault failed: 0xffff0000001dec44 error 1                                                                                  
cpuid = 2                                                                                                                           
time = 1720783402                                                                                                                   
KDB: stack backtrace:                                                                                                               
#0 0xffff000000525d3c at kdb_backtrace+0x58                                                                                         
#1 0xffff0000004d0d40 at vpanic+0x198                                                                                               
#2 0xffff0000004d0ba4 at panic+0x44                                                                                                 
#3 0xffff0000008b795c at data_abort+0x2cc                                                                                           
#4 0xffff000000893814 at handle_el1h_sync+0x14                                                                                      
Uptime: 7m10s                                           
Dumping 134 out of 926 MB:..3%..12%..21%..33%..42%..51%..63%..72%..81%..93%                                                         
Dump complete                                                                                                                       
Resetting system ...                                                                    


I have a core dump and can gather more information.
The panic is repeatable.

Regards,
Ronald.
 


Hi,

I managed to attached the debugger to the core dump and get a backtrace.

[root@rpi3 ~]# kgdb -n 1 /usr/lib/debug/boot/kernel/kernel.debug
Reading symbols from /usr/lib/debug/boot/kernel/kernel.debug...

Unread portion of the kernel message buffer:
panic: vm_fault failed: 0xffff0000001dec44 error 1
cpuid = 2
time = 1720783402
KDB: stack backtrace:
#0 0xffff000000525d3c at kdb_backtrace+0x58
#1 0xffff0000004d0d40 at vpanic+0x198
#2 0xffff0000004d0ba4 at panic+0x44
#3 0xffff0000008b795c at data_abort+0x2cc
#4 0xffff000000893814 at handle_el1h_sync+0x14
Uptime: 7m10s
Dumping 134 out of 926 MB:..3%..12%..21%..33%..42%..51%..63%..72%..81%

Reading symbols from /boot/kernel/if_bridge.ko...
Reading symbols from /usr/lib/debug//boot/kernel/if_bridge.ko.debug...
Reading symbols from /boot/kernel/bridgestp.ko...
Reading symbols from /usr/lib/debug//boot/kernel/bridgestp.ko.debug...
Reading symbols from /boot/kernel/if_epair.ko...
Reading symbols from /usr/lib/debug//boot/kernel/if_epair.ko.debug...
Reading symbols from /boot/kernel/ipfw.ko...
Reading symbols from /usr/lib/debug//boot/kernel/ipfw.ko.debug...
Reading symbols from /boot/kernel/ipfw_nat.ko...
Reading symbols from /usr/lib/debug//boot/kernel/ipfw_nat.ko.debug...
Reading symbols from /boot/kernel/libalias.ko...
Reading symbols from /usr/lib/debug//boot/kernel/libalias.ko.debug...
Reading symbols from /boot/kernel/mac_ntpd.ko...
Reading symbols from /usr/lib/debug//boot/kernel/mac_ntpd.ko.debug...
Reading symbols from /boot/kernel/geom_eli.ko...
Reading symbols from /usr/lib/debug//boot/kernel/geom_eli.ko.debug...
Reading symbols from /boot/kernel/nullfs.ko...
Reading symbols from /usr/lib/debug//boot/kernel/nullfs.ko.debug...
Reading symbols from /boot/kernel/uslcom.ko...
Reading symbols from /usr/lib/debug//boot/kernel/uslcom.ko.debug...
Reading symbols from /boot/kernel/ucom.ko...
Reading symbols from /usr/lib/debug//boot/kernel/ucom.ko.debug...
Reading symbols from /boot/kernel/uplcom.ko...
Reading symbols from /usr/lib/debug//boot/kernel/uplcom.ko.debug...
get_curthread () at /usr/src/sys/arm64/include/pcpu.h:77
77        __asm __volatile("ldr    %0, [x18]" : "=&r"(td));
(kgdb) bt
#0  get_curthread () at /usr/src/sys/arm64/include/pcpu.h:77
#1  doadump (textdump=<optimized out>) at /usr/src/sys/kern/kern_shutdown.c:405
#2  0xffff0000004d0794 in kern_reboot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:523
#3  0xffff0000004d0dcc in vpanic (fmt=<optimized out>, ap=...) at /usr/src/sys/kern/kern_shutdown.c:967
#4  0xffff0000004d0ba8 in panic (fmt=0xffff000000cae000 <sysctl___kern_powercycle_on_panic> "")
    at /usr/src/sys/kern/kern_shutdown.c:891
#5  0xffff0000008b7960 in data_abort (td=0xffff0000893f1c80, frame=0xffff0000403f4430, esr=2516582404, far=<optimized out>,
    lower=<optimized out>) at /usr/src/sys/arm64/arm64/trap.c:398
#6  <signal handler called>
#7  MIIBUS_READREG (dev=0x0, phy=1, reg=1) at ./miibus_if.h:26
#8  ukphy_status (phy=0xffffa00001980380) at /usr/src/sys/dev/mii/ukphy_subr.c:68
#9  0xffff0000001deb98 in ukphy_service (sc=0xffffa00001980380, mii=<optimized out>, cmd=3) at /usr/src/sys/dev/mii/ukphy.c:151
#10 0xffff0000001d5b5c in mii_pollstat (mii=mii@entry=0xffffa00001980800) at /usr/src/sys/dev/mii/mii.c:619
#11 0xffff0000002fa298 in muge_ifmedia_sts (ifp=<optimized out>, ifmr=0xffff0000403f4708)
    at /usr/src/sys/dev/usb/net/if_muge.c:2127
#12 0xffff00000061e148 in ifmedia_ioctl (ifp=0x0, ifr=0xffff0000403f4708, ifm=0x0, cmd=18446462598736175692)
    at /usr/src/sys/net/if_media.c:293
#13 0xffff00000071550c in get_operstate_ether (ifp=0xffffa00001363000, pstate=<optimized out>)
    at /usr/src/sys/netlink/route/iface.c:124
#14 get_operstate (ifp=0xffffa00001363000, pstate=<optimized out>) at /usr/src/sys/netlink/route/iface.c:181
#15 dump_iface (nw=nw@entry=0xffff0000403f4790, ifp=ifp@entry=0xffffa00001363000, hdr=hdr@entry=0xffff0000403f47d0,
    if_flags_mask=if_flags_mask@entry=0) at /usr/src/sys/netlink/route/iface.c:310
#16 0xffff000000714dd8 in rtnl_handle_ifevent (ifp=0xffffa00001363000, nlmsg_type=<optimized out>, if_flags_mask=0)
    at /usr/src/sys/netlink/route/iface.c:1411
#17 0xffff000000613c20 in do_link_state_change (arg=0xffffa00001363000, pending=<optimized out>) at /usr/src/sys/net/if.c:2206
#18 0xffff00000053e1f0 in taskqueue_run_locked (queue=queue@entry=0xffffa0000137ac00) at /usr/src/sys/kern/subr_taskqueue.c:518
#19 0xffff00000053df44 in taskqueue_run (queue=0xffffa0000137ac00) at /usr/src/sys/kern/subr_taskqueue.c:533
#20 0xffff000000481b10 in intr_event_execute_handlers (ie=0xffffa00001374a00, p=<optimized out>)
    at /usr/src/sys/kern/kern_intr.c:1205
#21 ithread_execute_handlers (ie=0xffffa00001374a00, p=<optimized out>) at /usr/src/sys/kern/kern_intr.c:1218
#22 ithread_loop (arg=arg@entry=0xffffa0000140f9e0) at /usr/src/sys/kern/kern_intr.c:1306
#23 0xffff00000047cdf4 in fork_exit (callout=0xffff000000481778 <ithread_loop>, arg=0xffffa0000140f9e0, frame=0xffff0000403f4a00)
    at /usr/src/sys/kern/kern_fork.c:1164
#24 <signal handler called>
(kgdb)


I hope this makes sense to somebody. If I need to type some extra commands in the debugger please let me know.

Regards,
Ronald.
  ------=_Part_9714_598260772.1720797541312--