BUG: scheduling while atomic: perl/10433/0x10000001 Modules linked in: btrfs zlib_deflate crc32c libcrc32c ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs exportfs reiserfs binfmt_misc parport_pc ppdev rfcomm sco bnep l2cap vboxnetadp vboxnetflt vboxdrv snd_hda_codec_realtek joydev arc4 snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi iwl3945 i915 snd_seq_midi_event iwlcore snd_seq drm_kms_helper mac80211 snd_timer snd_seq_device drm uvcvideo btusb videodev v4l1_compat r852 sm_common bluetooth snd nand nand_ids nand_ecc intel_agp i2c_algo_bit cfg80211 mtd psmouse video soundcore snd_page_alloc serio_raw agpgart output lp parport usbhid hid firewire_ohci sdhci_pci sdhci firewire_core tg3 led_class crc_itu_t Pid: 10433, comm: perl Not tainted 2.6.35-16-generic #22-Ubuntu Call Trace: [] __schedule_bug+0x62/0x70 [] schedule+0x760/0x7a0 [] _cond_resched+0x32/0x50 [] anon_vma_prepare+0x1e/0x130 [] expand_downwards+0x1d/0x170 [] ? __alloc_pages_nodemask+0xd9/0x1c0 [] expand_stack+0xd/0x10 [] do_anonymous_page+0x2fb/0x310 [] ? _raw_spin_lock+0xd/0x10 [] handle_mm_fault+0x340/0x400 [] __get_user_pages+0x109/0x3f0 [] get_user_pages+0x55/0x70 [] get_arg_page+0x52/0xb0 [] ? strnlen_user+0x2b/0x60 [] copy_strings+0xd0/0x180 [] copy_strings_kernel+0x29/0x40 [] do_execve+0x19a/0x2c0 [] ? copy_to_user+0x39/0x130 [] ? strncpy_from_user+0x3a/0x70 [] sys_execve+0x37/0x70 [] ptregs_execve+0x12/0x18 [] ? syscall_call+0x7/0xb