Re: Last version of of citrix Client core dumps (Was Re: How to run Microsoft Internet Explorer on NetBSD?)

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

On Wed, Feb 03, 2016 at 07:31:35PM +0100, Jose Luis Rodriguez Garcia wrote:
> On Tue, Feb 2, 2016 at 4:17 AM, Eric Haszlakiewicz <erh%nimenees.com@localhost> wrote:
> > On 2/1/2016 3:51 PM, Jose Luis Rodriguez Garcia wrote:
> 
> 
> > Have you tried downloading a newer version of the client from Citrix's site?
> 
> I have just tried the last version of citrix as you told me.
> 
> It solves the problem of the certificate (the old version didn't
> understand the CA from Godaddy, but it coredumps at the startup.
> 
> I copy backtrace/registers and output from ktruss:
...
>   2412   2412 wfica    RET   writev 324/0x144
>   2412   2412 wfica    CALL  poll(0xbfbff418,1,0xffffffff)
>   2412   2412 wfica    RET   poll 1
>   2412   2412 wfica    CALL  read(3,0x8264a38,0x1000)
>   2412   2412 wfica    GIO   fd 3 read 32 bytes
>        "\^A\^B8\^B\0\0\0\0002\0`\^A\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
>   2412   2412 wfica    RET   read 32/0x20
>   2412   2412 wfica    CALL  read(3,0x8264a38,0x1000)
>   2412   2412 wfica    RET   read -1 unknown errno 35
>   2412   2412 wfica    CALL  read(3,0x8264a38,0x1000)
>   2412   2412 wfica    RET   read -1 unknown errno 35
>   2412   2412 wfica    CALL  gettimeofday(0xbfbff8bc,0)
>   2412   2412 wfica    RET   gettimeofday 0
>   2412   2412 wfica    CALL  gettimeofday(0xbfbff83c,0)
>   2412   2412 wfica    RET   gettimeofday 0
>   2412   2412 wfica    CALL  gettimeofday(0xbfbff7dc,0)
>   2412   2412 wfica    RET   gettimeofday 0
>   2412   2412 wfica    CALL  socketcall(9,0xbfbff5f0)
>   2412   2412 wfica    MISC  send: 16,
> 06000000ffffffe87cffffffdcffffffb92200000000000000
>   2412   2412 wfica    MISC  msghdr: [name=0x0, namelen=0,
> iov=0xf323bc84, iovlen=1, control=0x0, controllen=3226819742, flags=0]
>   2412   2412 wfica    GIO   fd 6 wrote 34 bytes
>        "\^W\^C\^A\0\^]\\\M-f`WIH*\M^F\M-%\^X\M-y\M^@9\M-t({In39$\M-!\^[\M^TNc\M^N/\M-_"
>   2412   2412 wfica    RET   socketcall 34/0x22
>   2412   2412 wfica    CALL  gettimeofday(0xbfbff6fc,0)
>   2412   2412 wfica    RET   gettimeofday 0
>   2412   2412 wfica    CALL  gettimeofday(0xbfbff68c,0)
>   2412   2412 wfica    RET   gettimeofday 0
>   2412   2412 wfica    CALL  gettimeofday(0xbfbff6fc,0)
>   2412   2412 wfica    RET   gettimeofday 0
>   2412   2412 wfica    PSIG  SIGSEGV SIG_DFL: code=SEGV_MAPERR,
> addr=0x92ee48c6, trap=14)
>   2412   2459 wfica    RET   select -1 unknown errno 4
>   2412   2412 wfica    NAMI  "wfica.core"

I am seeing this too. Essentially there are a load of calls to
linux_sys_recvmsg which returns 35 (EAGAIN). The last round looks like

 got here linux_sys_recvmsg 834 (do_sys_recvmsg=35)
 got here linux_select1 894 selcommon=0
 got here linux_sys_select 844
 got here linux_sys_recvmsg 815
 got here linux_to_bsd_msghdr 455
 got here linux_sys_recvmsg 820
 got here linux_to_bsd_msg_flags 279
 msg_name=0x0
 msg_namelen=0
 msg_iov=0x7f7fffffebd0
 msg_iov=0x7f
 msg_control=0x7f7fffffec20
 msg_controllen=80
 msg_flags=4000000
 control=0xffffffff80586483
 from=0xfffffe804534be58
 got here linux_sys_recvmsg 834 (do_sys_recvmsg=35)
 got here linux_select1 894 selcommon=4
 pid 3382 (wfica), uid 1000: exited on signal 11 (core dumped)

So it seems that after too many retries, a timer fires and kills the
process (linux_select1()). I suppose the underlying issue is with
linux_sys_recvmsg, but how can you find out what?

Cheers,

Patrick