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kern/49056: tcp_usrreq kassert firing

>Number:         49056
>Category:       kern
>Synopsis:       tcp_usrreq kassert firing
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jul 31 20:05:00 +0000 2014
>Originator:     Martin Husemann
>Release:        NetBSD 6.99.49
The NetBSD Foundation, Inc.
System: NetBSD 6.99.49 NetBSD 6.99.49 (EGENERIC) #20: 
Thu Jul 31 13:51:13 CEST 2014
Architecture: earmv4
Machine: shark

On a machine running with securelvel = -1 the PR 47598 test reproducably
triggers a kernel assertion.


night-rest# pwd
night-rest# sysctl kern.securelevel
kern.securelevel = -1
night-rest# atf-run t_kauth_pr_47598 > /dev/null
panic: kernel diagnostic assertion "req != PRU_ABORT" failed: file 
"../../../../netinet/tcp_usrreq.c", line 239 
Stopped in pid 114.1 (t_kauth_pr_47598) at      netbsd:cpu_Debugger+0x10:       
dmea    r13, {r11, r13, r15}
db> bt                      
0xf6101c44: netbsd:cpu_Debugger+0xc
0xf6101c5c: netbsd:db_panic+0x24   
0xf6101c84: netbsd:vpanic+0x20c 
0xf6101c9c: netbsd:kern_assert+0x38
0xf6101cec: netbsd:tcp_usrreq+0x240
0xf6101d1c: netbsd:tcp_usrreq_wrapper+0x44
0xf6101d44: netbsd:soabort+0xd4           
0xf6101d6c: netbsd:soclose+0x10c
0xf6101d8c: netbsd:soo_close+0x3c
0xf6101dd4: netbsd:closef+0x188  
0xf6101e2c: netbsd:fd_close+0x3f4
0xf6101e54: netbsd:sys_close+0x50


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