citrix_ica - "wfica" generates deadlock in linux_sys_futex...

[Nils Beyer]

Hi Konstantin,

Konstantin Belousov wrote:
>> this is strange as no ipc changes are made in stable/10
> 
> There was one interesting change, AFAIR.
> 
> Check the value of sysctl kern.ipc.shm_allow_removed, and if it's value
> is one, change it to zero.

unfortunately, that doesn't make any difference. Nevertheless, I need that
sysctl enabled for "chromium". And it needs to be enabled for "wfica" under
10.2 kernel as well.

For what it's worth, here's "procstat -kk <PID of wfica>":
==============================================================================
  PID    TID COMM             TDNAME           KSTACK                       
 1760 100731 wfica            -                mi_switch+0xe1 sleepq_catch_signals+0xab sleepq_wait_sig+0xf _sleep+0x27d linux_sys_futex+0xb3c ia32_syscall+0x3a0 
Xint0x80_syscall+0x95 
 1760 100732 wfica            -                mi_switch+0xe1 sleepq_catch_signals+0xab sleepq_wait_sig+0xf _sleep+0x27d sys_semop+0x53f linux_semop+0x25 linux_ipc+0x4b 
ia32_syscall+0x3a0 Xint0x80_syscall+0x95
==============================================================================



Regads,
Nils