[Bug 148807] [panic] 8.1-RELEASE/10.1-STABLE "panic: sbdrop" and "panic: sbsndptr: sockbuf _ and mbuf _ clashing"

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=148807

sebastian.huber at embedded-brains.de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |sebastian.huber at embedded-br
                   |                            |ains.de

--- Comment #16 from sebastian.huber at embedded-brains.de ---
I see this problem also with the port of the FreeBSD 9-stable (2015-04-09)
network stack to the RTEMS real-time operating system (Altera Cyclone V
target).  It occurs quite frequently with multiple concurrent IPv4 TCP
transfers to /dev/null and from /dev/zero.

The stack trace is:

000|panic(fmt = 0x00636E14)
001|sbsndptr(?, ?, ?, ?)
002|tcp_output(?)
003|tcp_do_segment(?, ?, so = 0x3FF3D7C0, tp = 0x3FF2F828, drop_hdrlen = 52,
tlen = 0, iptos = 0, ?)
004|tcp_input(m = 0x3FF21700, ?)
005|ip_input(m = 0x3FF21700)
006|netisr_dispatch_src(?, ?, ?)
007|ether_demux(ifp = 0x006DFEE0, m = 0x3FF21700)
008|ether_nh_input(?)
009|netisr_dispatch_src(?, ?, ?)
010|dwc_rxfinish_locked(inline)
010|dwc_intr(arg = 0x006DEA20)
011|bsp_interrupt_server_task(?)
012|Thread_Handler()
---|end of frame

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