[Bug 197882] [panic] kernel panics in soreceive_dgram

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Sat Feb 21 17:12:33 UTC 2015


            Bug ID: 197882
           Summary: [panic] kernel panics in soreceive_dgram
           Product: Base System
           Version: 11.0-CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: ae at FreeBSD.org

Created attachment 153281
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=153281&action=edit
text dump

I wrote small program to test changes in ipv6 code, but it triggers panic in
generic socket's code.

Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address   = 0x1c
fault code              = supervisor read data, page not present
instruction pointer     = 0x20:0xffffffff809de6dc
stack pointer           = 0x28:0xfffffe066064a7c0
frame pointer           = 0x28:0xfffffe066064a840
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 885 (test)

#9  0xffffffff80d93f42 in calltrap ()
    at /home/devel/freebsd/base/head/sys/amd64/amd64/exception.S:235
#10 0xffffffff809de6dc in soreceive_dgram (so=<value optimized out>, 
    psa=0xfffffe066064a8c0, uio=0xfffffe066064a8d0, 
    mp0=<value optimized out>, controlp=<value optimized out>, 
    at /home/devel/freebsd/base/head/sys/kern/uipc_socket.c:2271
#11 0xffffffff809de88e in soreceive (so=0xfffff8002379b700, psa=0x100, 
    uio=0xfc, mp0=0x0, controlp=0xffffffff81542158, flagsp=0x8)
    at /home/devel/freebsd/base/head/sys/kern/uipc_socket.c:2321
#12 0xffffffff809e3938 in kern_recvit (td=0xfffff80012dda940, s=3, 
    mp=0xfffffe066064a950, fromseg=UIO_USERSPACE, controlp=0x0)
    at /home/devel/freebsd/base/head/sys/kern/uipc_syscalls.c:1102
#13 0xffffffff809e3ccf in sys_recvmsg (td=0xfffff80012dda940, 
    at /home/devel/freebsd/base/head/sys/kern/uipc_syscalls.c:1214
#14 0xffffffff80db675f in amd64_syscall (td=0xfffff80012dda940, traced=0)
    at subr_syscall.c:133

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