TSO panic

[ben wilber]

On Sep 1, 2010, at 8:57 AM, Andre Oppermann wrote:

> On 01.09.2010 01:13, ben wilber wrote:
>> Hi,
>> 
>> I just upgraded from r210042 to r212073 and keep getting the panic
>> introduced in r211317:
>> 
>> panic: tcp_output: len<= tso_segsz
> 
> Please try the attached patch and report back whether it
> fixes the issue.

The system ran for 8 hours or so before I received the same panic.  Previously, it would panic within 20 minutes.

db:0:kdb.enter.default>  bt
Tracing pid 17131 tid 100601 td 0xffffff0236603440
kdb_enter() at kdb_enter+0x3d
panic() at panic+0x1c8
tcp_output() at tcp_output+0x1495
tcp_usr_send() at tcp_usr_send+0x267
sosend_generic() at sosend_generic+0x49e
sosend() at sosend+0x1f
soo_write() at soo_write+0x51
dofilewrite() at dofilewrite+0x87
kern_writev() at kern_writev+0x46
write() at write+0x4e
syscallenter() at syscallenter+0x251
syscall() at syscall+0x39
Xfast_syscall() at Xfast_syscall+0xe2
--- syscall (4, FreeBSD ELF64, write), rip = 0x800f5d1ac, rsp = 0x7fffffffc3b8, rbp = 0x8007a1340 ---

Thanks.