Re: kern/49065 (ifconfig tun0 ... sequence locks up system)

[Frank Kardel <kardel%netbsd.org@localhost>]

The following reply was made to PR kern/49065; it has been noted by GNATS.

From: Frank Kardel <kardel%netbsd.org@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/49065 (ifconfig tun0 ... sequence locks up system)
Date: Mon, 04 Aug 2014 00:44:43 +0200

 On 08/04/14 00:13, rmind%NetBSD.org@localhost wrote:
 > Synopsis: ifconfig tun0 ... sequence locks up system
 >
 > State-Changed-From-To: open->feedback
 > State-Changed-By: rmind%NetBSD.org@localhost
 > State-Changed-When: Sun, 03 Aug 2014 22:13:05 +0000
 > State-Changed-Why:
 > Can you cvs up and try again?
 >
 >
 I tried it, but it only survived to first duplicate tunnel config. The 
 second one got stuck again like this.
 db> bt/a db8dab80
 trace: pid 1697 lid 1 at 0xdb429b5c
 0xdb429b5c: netbsd:mi_switch+0xc
 0xdb429b8c: netbsd:sleepq_block+0xa4
 0xdb429bc4: netbsd:cv_wait+0x114
 0xdb429bec: netbsd:usbd_transfer+0x1e8
 0xdb429c24: netbsd:usbd_do_request_flags_pipe+0xd0
 0xdb429c4c: netbsd:usbd_do_request+0x38
 0xdb429c7c: netbsd:smsc_write_reg+0x60
 0xdb429cac: netbsd:smsc_ioctl+0x110
 0xdb429d54: netbsd:if_mcast_op+0x50
 0xdb429da4: netbsd:in6_delmulti+0x148
 0xdb429dbc: netbsd:in6_leavegroup+0x20
 0xdb429dd4: netbsd:ip6_freemoptions+0x3c
 0xdb429df4: netbsd:in6_pcbdetach+0x74
 0xdb429e14: netbsd:udp6_detach_wrapper+0x3c
 0xdb429e3c: netbsd:soclose+0xf4
 0xdb429e54: netbsd:soo_close+0x20
 0xdb429e94: netbsd:closef+0x6c
 0xdb429ef4: netbsd:fd_close+0x234
 0xdb429f0c: netbsd:sys_close+0x2c
 0xdb429f7c: netbsd:syscall+0x8c
 0xdb429fac: netbsd:swi_handler+0x98
 
 BTW: The crypto fix worked.