Hi,<br>I am running linux-2.6.22.1-rt8 on mpc5200 and on running stress<br><br>./stress --cpu 8 --io 4 --vm 2 --vm-bytes 2M --timeout 300s<br><br>I get the following stack.But this does not happen with non rt kernel.<br><br>
 &nbsp; &nbsp;LR = 0xff51fcc<br>BUG: scheduling while atomic: stress/0x00000002/739, CPU#0<br>Call Trace:<br>[c04fbb80] [c0008650] show_stack+0x50/0x190 (unreliable)<br>[c04fbbb0] [c0016fc0] __schedule_bug+0x38/0x48<br>[c04fbbc0] [c01d4f7c] __schedule+0x3dc/0x450
<br>[c04fbbf0] [c01d56c8] schedule+0x54/0xf0<br>[c04fbc00] [c01d6390] rt_spin_lock_slowlock+0x100<div style="direction: ltr;">/0x224<br>[c04fbc60] [c0052198] get_zone_pcp+0x30/0x58<br>[c04fbc80] [c0053078] free_hot_cold_page+0x114/0x1fc
<br>[c04fbcb0] [c0056424] put_page+0x50/0x15c<br>[c04fbcd0] [c0069854] free_page_and_swap_cache+0x44/0x80<br>[c04fbce0] [c005d760] unmap_vmas+0x2e0/0x788<br>[c04fbd70] [c006292c] exit_mmap+0x74/0x108<br>[c04fbda0] [c001adc0] mmput+0x54/0xf0
<br>[c04fbdc0] [c001ecfc] exit_mm+0xc0/0x124<br>[c04fbde0] [c001ffd0] do_exit+0x164/0x8bc<br>[c04fbe20] [c0020760] do_group_exit+0x38/0x90<br>[c04fbe40] [c002ba48] get_signal_to_deliver+0x2ac/0x3c0<br>[c04fbe70] [c000739c] do_signal+0x50/0x60c
<br>[c04fbf40] [c000fec0] do_user_signal+0x74/0xc4<br>--- Exception: c00 at 0xfeab1dc<br> &nbsp; &nbsp;LR = 0xff51fcc</div><br clear="all">Thanks in advance<br>-- <br>Regards,<br>Giri