Hi, My friend have a PowerPC G4 with a rt kernel (2.6.22) and during booting obtain these errors: [ 0.000000] Using PowerMac machine description [ 0.000000] Total memory = 512MB; using 1024kB for hash table (at cff00000) [ 0.000000] Linux version 2.6.22-10-rt (root@midget) (gcc version 4.1.3 20070825 (prerelease) (Ubuntu 4.1.2-15ubuntu3)) #1 PREEMPT RT Fri Aug 31 14:38:10 EST 2007 (Ubuntu 2.6.22-10.30-powerpc) [...] [ 0.000000] PowerMac motherboard: Mac mini [...] [ 36.811281] device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised: dm-devel@xxxxxxxxxx [ 37.440173] BUG: scheduling while atomic: udevd/0x00000002/1193, CPU#0 [ 37.440390] Call Trace: [ 37.440393] [c1aafc70] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 37.440408] [c1aafca0] [c002d2c8] __schedule_bug+0x38/0x48 [ 37.440418] [c1aafcb0] [c0266690] __schedule+0x3d8/0x47c [ 37.440425] [c1aafce0] [c02669f8] schedule+0x54/0xf0 [ 37.440430] [c1aafcf0] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 37.440437] [c1aafd50] [c007b130] lru_cache_add_active+0x20/0xa0 [ 37.440444] [c1aafd60] [c0080edc] do_wp_page+0x34c/0xdfc [ 37.440451] [c1aafda0] [c00855b0] __handle_mm_fault+0x9e8/0xc9c [ 37.440458] [c1aafe10] [c02695f4] do_page_fault+0x1e0/0x56c [ 37.440465] [c1aaff40] [c00130f4] handle_page_fault+0xc/0x80 [ 37.440476] --- Exception: 301 at 0x10004888 [ 37.440483] LR = 0x10005468 [...] [ 42.751963] kjournald starting. Commit interval 5 seconds [ 42.751994] EXT3-fs: mounted filesystem with ordered data mode. [ 52.417842] eth0: Link is up at 100 Mbps, full-duplex. [ 52.417853] eth0: Pause is disabled [ 55.236136] BUG: scheduling while atomic: modprobe/0x00000002/3330, CPU#0 [ 55.236370] Call Trace: [ 55.236373] [de7e3c70] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 55.236389] [de7e3ca0] [c002d2c8] __schedule_bug+0x38/0x48 [ 55.236399] [de7e3cb0] [c0266690] __schedule+0x3d8/0x47c [ 55.236406] [de7e3ce0] [c02669f8] schedule+0x54/0xf0 [ 55.236411] [de7e3cf0] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 55.236418] [de7e3d50] [c007b130] lru_cache_add_active+0x20/0xa0 [ 55.236425] [de7e3d60] [c0080edc] do_wp_page+0x34c/0xdfc [ 55.236432] [de7e3da0] [c00855b0] __handle_mm_fault+0x9e8/0xc9c [ 55.236439] [de7e3e10] [c02695f4] do_page_fault+0x1e0/0x56c [ 55.236446] [de7e3f40] [c00130f4] handle_page_fault+0xc/0x80 [ 55.236457] --- Exception: 301 at 0xfea11e0 [ 55.236471] LR = 0xfea116c [ 55.236509] BUG: scheduling while atomic: modprobe/0x00000002/3332, CPU#0 [ 55.236721] Call Trace: [ 55.236724] [df4c5c70] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 55.236731] [df4c5ca0] [c002d2c8] __schedule_bug+0x38/0x48 [ 55.236737] [df4c5cb0] [c0266690] __schedule+0x3d8/0x47c [ 55.236742] [df4c5ce0] [c02669f8] schedule+0x54/0xf0 [ 55.236747] [df4c5cf0] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 55.236753] [df4c5d50] [c007b130] lru_cache_add_active+0x20/0xa0 [ 55.236758] [df4c5d60] [c0080edc] do_wp_page+0x34c/0xdfc [ 55.236763] [df4c5da0] [c00855b0] __handle_mm_fault+0x9e8/0xc9c [ 55.236769] [df4c5e10] [c02695f4] do_page_fault+0x1e0/0x56c [ 55.236775] [df4c5f40] [c00130f4] handle_page_fault+0xc/0x80 [ 55.236781] --- Exception: 301 at 0xfea11e0 [ 55.236786] LR = 0xfea116c [ 55.236821] BUG: scheduling while atomic: modprobe/0x00000002/3334, CPU#0 [ 55.237032] Call Trace: [ 55.237034] [deb19c70] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 55.237041] [deb19ca0] [c002d2c8] __schedule_bug+0x38/0x48 [ 55.237047] [deb19cb0] [c0266690] __schedule+0x3d8/0x47c [ 55.237052] [deb19ce0] [c02669f8] schedule+0x54/0xf0 [ 55.237057] [deb19cf0] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 55.237062] [deb19d50] [c007b130] lru_cache_add_active+0x20/0xa0 [ 55.237068] [deb19d60] [c0080edc] do_wp_page+0x34c/0xdfc [ 55.237073] [deb19da0] [c00855b0] __handle_mm_fault+0x9e8/0xc9c [ 55.237079] [deb19e10] [c02695f4] do_page_fault+0x1e0/0x56c [ 55.237084] [deb19f40] [c00130f4] handle_page_fault+0xc/0x80 [ 55.237090] --- Exception: 301 at 0xfea11e0 [ 55.237095] LR = 0xfea116c [ 55.237129] BUG: scheduling while atomic: check-ptp-camer/0x00000002/3295, CPU#0 [ 55.237362] Call Trace: [ 55.237365] [cfd2bc70] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 55.237372] [cfd2bca0] [c002d2c8] __schedule_bug+0x38/0x48 [ 55.237378] [cfd2bcb0] [c0266690] __schedule+0x3d8/0x47c [ 55.237383] [cfd2bce0] [c02669f8] schedule+0x54/0xf0 [ 55.237388] [cfd2bcf0] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 55.237394] [cfd2bd50] [c007b130] lru_cache_add_active+0x20/0xa0 [ 55.237399] [cfd2bd60] [c0080edc] do_wp_page+0x34c/0xdfc [ 55.237405] [cfd2bda0] [c00855b0] __handle_mm_fault+0x9e8/0xc9c [ 55.237410] [cfd2be10] [c02695f4] do_page_fault+0x1e0/0x56c [ 55.237416] [cfd2bf40] [c00130f4] handle_page_fault+0xc/0x80 [ 55.237422] --- Exception: 301 at 0x30008000 [ 55.237427] LR = 0x30008358 [ 55.237465] BUG: scheduling while atomic: check-ptp-camer/0x00000002/3320, CPU#0 [ 55.237698] Call Trace: [ 55.237700] [dff37c70] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 55.237707] [dff37ca0] [c002d2c8] __schedule_bug+0x38/0x48 [ 55.237713] [dff37cb0] [c0266690] __schedule+0x3d8/0x47c [ 55.237718] [dff37ce0] [c02669f8] schedule+0x54/0xf0 [ 55.237723] [dff37cf0] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 55.237728] [dff37d50] [c007b130] lru_cache_add_active+0x20/0xa0 [ 55.237734] [dff37d60] [c00807bc] do_anonymous_page+0x3e8/0x560 [ 55.237739] [dff37da0] [c0085364] __handle_mm_fault+0x79c/0xc9c [ 55.237745] [dff37e10] [c02695f4] do_page_fault+0x1e0/0x56c [ 55.237751] [dff37f40] [c00130f4] handle_page_fault+0xc/0x80 [ 55.237757] --- Exception: 301 at 0x100ad73c [ 55.237761] LR = 0x100ad6f8 [ 55.237817] BUG: scheduling while atomic: check-ptp-camer/0x00000002/3312, CPU#0 [ 55.238050] Call Trace: [ 55.238052] [df1f7cb0] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 55.238061] [df1f7ce0] [c002d2c8] __schedule_bug+0x38/0x48 [ 55.238067] [df1f7cf0] [c0266690] __schedule+0x3d8/0x47c [ 55.238072] [df1f7d20] [c02669f8] schedule+0x54/0xf0 [ 55.238077] [df1f7d30] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 55.238083] [df1f7d90] [c007b130] lru_cache_add_active+0x20/0xa0 [ 55.238088] [df1f7da0] [c0084e9c] __handle_mm_fault+0x2d4/0xc9c [ 55.238094] [df1f7e10] [c02695f4] do_page_fault+0x1e0/0x56c [ 55.238100] [df1f7f40] [c00130f4] handle_page_fault+0xc/0x80 [ 55.238106] --- Exception: 301 at 0x30019630 [ 55.238112] LR = 0x300083b0 [ 55.238135] BUG: scheduling while atomic: check-ptp-camer/0x00000002/3303, CPU#0 [ 55.238366] Call Trace: [ 55.238368] [cfca1cb0] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 55.238375] [cfca1ce0] [c002d2c8] __schedule_bug+0x38/0x48 [ 55.238381] [cfca1cf0] [c0266690] __schedule+0x3d8/0x47c [ 55.238386] [cfca1d20] [c02669f8] schedule+0x54/0xf0 [ 55.238391] [cfca1d30] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 55.238397] [cfca1d90] [c007b130] lru_cache_add_active+0x20/0xa0 [ 55.238402] [cfca1da0] [c0084e9c] __handle_mm_fault+0x2d4/0xc9c [ 55.238408] [cfca1e10] [c02695f4] do_page_fault+0x1e0/0x56c [ 55.238413] [cfca1f40] [c00130f4] handle_page_fault+0xc/0x80 [ 55.238419] --- Exception: 301 at 0x30019630 [ 55.238423] LR = 0x300083b0 [ 55.238435] BUG: scheduling while atomic: check-ptp-camer/0x00000002/3337, CPU#0 [ 55.238666] Call Trace: [ 55.238668] [df60bcd0] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 55.238675] [df60bd00] [c002d2c8] __schedule_bug+0x38/0x48 [ 55.238680] [df60bd10] [c0266690] __schedule+0x3d8/0x47c [ 55.238685] [df60bd40] [c02669f8] schedule+0x54/0xf0 [ 55.238690] [df60bd50] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 55.238696] [df60bdb0] [c007ac28] put_page+0x88/0x154 [ 55.238701] [df60bdd0] [c008e6c4] free_page_and_swap_cache+0x44/0x80 [ 55.238710] [df60bde0] [c00825e4] unmap_vmas+0x2ac/0x6f0 [ 55.238715] [df60be70] [c00877e4] exit_mmap+0x78/0x10c [ 55.238721] [df60bea0] [c00301a4] mmput+0x54/0xf4 [ 55.238728] [df60bec0] [c0034884] exit_mm+0xc0/0x124 [ 55.238736] [df60bee0] [c00362dc] do_exit+0x174/0x8c8 [ 55.238741] [df60bf20] [c0036a68] do_group_exit+0x38/0x84 [ 55.238746] [df60bf40] [c0012cc8] ret_from_syscall+0x0/0x38 [ 55.238752] --- Exception: c01 at 0xfe95fe8 [ 55.238756] LR = 0xfe95fb8 [ 55.238849] BUG: scheduling while atomic: modprobe/0x00000002/3330, CPU#0 [ 55.239060] Call Trace: [ 55.239062] [de7e3c70] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 55.239070] [de7e3ca0] [c002d2c8] __schedule_bug+0x38/0x48 [ 55.239076] [de7e3cb0] [c0266690] __schedule+0x3d8/0x47c [ 55.239082] [de7e3ce0] [c02669f8] schedule+0x54/0xf0 [ 55.239087] [de7e3cf0] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 55.239092] [de7e3d50] [c007b130] lru_cache_add_active+0x20/0xa0 [ 55.239098] [de7e3d60] [c00807bc] do_anonymous_page+0x3e8/0x560 [ 55.239104] [de7e3da0] [c0085364] __handle_mm_fault+0x79c/0xc9c [ 55.239110] [de7e3e10] [c02695f4] do_page_fault+0x1e0/0x56c [ 55.239116] [de7e3f40] [c00130f4] handle_page_fault+0xc/0x80 [ 55.239122] --- Exception: 301 at 0xff485b0 [ 55.239127] LR = 0xff4857c [ 55.239191] BUG: scheduling while atomic: modprobe/0x00000002/3332, CPU#0 [ 55.239636] Call Trace: [ 55.239639] [df4c5c70] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 55.239646] [df4c5ca0] [c002d2c8] __schedule_bug+0x38/0x48 [ 55.239652] [df4c5cb0] [c0266690] __schedule+0x3d8/0x47c [ 55.239657] [df4c5ce0] [c02669f8] schedule+0x54/0xf0 [ 55.239662] [df4c5cf0] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 55.239668] [df4c5d50] [c007b130] lru_cache_add_active+0x20/0xa0 [ 55.239673] [df4c5d60] [c00807bc] do_anonymous_page+0x3e8/0x560 [ 55.239679] [df4c5da0] [c0085364] __handle_mm_fault+0x79c/0xc9c [ 55.239685] [df4c5e10] [c02695f4] do_page_fault+0x1e0/0x56c [ 55.239691] [df4c5f40] [c00130f4] handle_page_fault+0xc/0x80 [ 55.239697] --- Exception: 301 at 0xff485b0 [ 55.239702] LR = 0xff4857c [ 55.239768] BUG: scheduling while atomic: modprobe/0x00000002/3334, CPU#0 [ 55.240211] Call Trace: [ 55.240214] [deb19c70] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 55.240222] [deb19ca0] [c002d2c8] __schedule_bug+0x38/0x48 [ 55.240228] [deb19cb0] [c0266690] __schedule+0x3d8/0x47c [ 55.240233] [deb19ce0] [c02669f8] schedule+0x54/0xf0 [ 55.240238] [deb19cf0] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 55.240243] [deb19d50] [c007b130] lru_cache_add_active+0x20/0xa0 [ 55.240249] [deb19d60] [c00807bc] do_anonymous_page+0x3e8/0x560 [ 55.240255] [deb19da0] [c0085364] __handle_mm_fault+0x79c/0xc9c [ 55.240261] [deb19e10] [c02695f4] do_page_fault+0x1e0/0x56c [ 55.240266] [deb19f40] [c00130f4] handle_page_fault+0xc/0x80 [ 55.240272] --- Exception: 301 at 0xff485b0 [ 55.240277] LR = 0xff4857c [ 55.240517] BUG: scheduling while atomic: check-ptp-camer/0x00000002/3320, CPU#0 [ 55.241218] Call Trace: [ 55.241221] [dff37c70] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 55.241230] [dff37ca0] [c002d2c8] __schedule_bug+0x38/0x48 [ 55.241236] [dff37cb0] [c0266690] __schedule+0x3d8/0x47c [ 55.241242] [dff37ce0] [c02669f8] schedule+0x54/0xf0 [ 55.241247] [dff37cf0] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 55.241253] [dff37d50] [c007b130] lru_cache_add_active+0x20/0xa0 [ 55.241258] [dff37d60] [c0080edc] do_wp_page+0x34c/0xdfc [ 55.241265] [dff37da0] [c00855b0] __handle_mm_fault+0x9e8/0xc9c [ 55.241271] [dff37e10] [c02695f4] do_page_fault+0x1e0/0x56c [ 55.241276] [dff37f40] [c00130f4] handle_page_fault+0xc/0x80 [ 55.241284] --- Exception: 301 at 0xfe740f0 [ 55.241290] LR = 0xfe7408c [ 56.047511] NET: Registered protocol family 17 [ 57.038393] Linux agpgart interface v0.102 (c) Dave Jones [ 57.157631] agpgart: Detected Apple UniNorth 2 chipset [ 57.157786] agpgart: configuring for size idx: 8 [ 57.157844] agpgart: AGP aperture is 32M @ 0x0 [ 57.355922] ieee80211_crypt: registered algorithm 'NULL' [ 57.455714] ieee80211: 802.11 data/management/control stack, git-1.1.13 [ 57.455724] ieee80211: Copyright (C) 2004-2005 Intel Corporation <jketreno@xxxxxxxxxxxxxxx> [ 57.924968] BUG: scheduling while atomic: modprobe/0x00000002/3448, CPU#0 [ 57.925436] Call Trace: [ 57.925439] [cfcffcb0] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 57.925455] [cfcffce0] [c002d2c8] __schedule_bug+0x38/0x48 [ 57.925464] [cfcffcf0] [c0266690] __schedule+0x3d8/0x47c [ 57.925472] [cfcffd20] [c02669f8] schedule+0x54/0xf0 [ 57.925477] [cfcffd30] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 57.925484] [cfcffd90] [c0076738] get_zone_pcp+0x2c/0x58 [ 57.925495] [cfcffdb0] [c0076e14] free_hot_cold_page+0x104/0x204 [ 57.925501] [cfcffde0] [c007abf0] put_page+0x50/0x154 [ 57.925507] [cfcffe00] [c008e6c4] free_page_and_swap_cache+0x44/0x80 [ 57.925518] [cfcffe10] [c00825e4] unmap_vmas+0x2ac/0x6f0 [ 57.925524] [cfcffea0] [c0087668] unmap_region+0xac/0x140 [ 57.925530] [cfcffee0] [c0088328] do_munmap+0x17c/0x234 [ 57.925535] [cfcfff20] [c008841c] sys_munmap+0x3c/0x60 [ 57.925541] [cfcfff40] [c0012cc8] ret_from_syscall+0x0/0x38 [ 57.925552] --- Exception: c01 at 0xff609b4 [ 57.925567] LR = 0xfefca28 [ 57.943516] bcm43xx driver [ 58.040121] PCI: Enabling device 0001:10:12.0 (0004 -> 0006) [ 60.162627] pmac_zilog: 0.6 (Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>) [ 60.162737] ttyS0 at MMIO 0x80013020 (irq = 22) is a Z85c30 ESCC - Serial port [ 60.165854] ttyS1 at MMIO 0x80013000 (irq = 23) is a Z85c30 ESCC - Serial port [ 60.495390] snd-aoa-fabric-layout: found bus with layout 58 [ 60.495401] snd-aoa-fabric-layout: Using direct GPIOs [ 60.513181] snd-aoa-fabric-layout: can use this codec [ 61.331923] apm_emu: PMU APM Emulation initialized. [ 61.421748] SCSI subsystem initialized [ 61.501805] fuse init (API version 7.8) [ 61.719287] BUG: scheduling while atomic: sleep/0x00000002/3855, CPU#0 [ 61.719750] Call Trace: [ 61.719753] [df5c1c80] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 61.719769] [df5c1cb0] [c002d2c8] __schedule_bug+0x38/0x48 [ 61.719779] [df5c1cc0] [c0266690] __schedule+0x3d8/0x47c [ 61.719786] [df5c1cf0] [c02669f8] schedule+0x54/0xf0 [ 61.719791] [df5c1d00] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 61.719798] [df5c1d60] [c0076738] get_zone_pcp+0x2c/0x58 [ 61.719809] [df5c1d80] [c0076e14] free_hot_cold_page+0x104/0x204 [ 61.719816] [df5c1db0] [c007abf0] put_page+0x50/0x154 [ 61.719821] [df5c1dd0] [c008e6c4] free_page_and_swap_cache+0x44/0x80 [ 61.719833] [df5c1de0] [c00825e4] unmap_vmas+0x2ac/0x6f0 [ 61.719838] [df5c1e70] [c00877e4] exit_mmap+0x78/0x10c [ 61.719844] [df5c1ea0] [c00301a4] mmput+0x54/0xf4 [ 61.719851] [df5c1ec0] [c0034884] exit_mm+0xc0/0x124 [ 61.719859] [df5c1ee0] [c00362dc] do_exit+0x174/0x8c8 [ 61.719864] [df5c1f20] [c0036a68] do_group_exit+0x38/0x84 [ 61.719869] [df5c1f40] [c0012cc8] ret_from_syscall+0x0/0x38 [ 61.719880] --- Exception: c01 at 0xff2bfe8 [ 61.719908] LR = 0xff2bfb8 [ 61.751033] Adding 999992k swap on /dev/hda4. Priority:-1 extents:1 across:999992k [ 62.229503] EXT3 FS on hda5, internal journal [ 63.062412] kjournald starting. Commit interval 5 seconds [ 63.062568] EXT3 FS on hda6, internal journal [ 63.062577] EXT3-fs: mounted filesystem with ordered data mode. [ 65.255226] BUG: scheduling while atomic: ntpdate/0x00000002/4341, CPU#0 [ 65.255902] Call Trace: [ 65.255906] [df23dc40] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 65.255921] [df23dc70] [c002d2c8] __schedule_bug+0x38/0x48 [ 65.255931] [df23dc80] [c0266690] __schedule+0x3d8/0x47c [ 65.255939] [df23dcb0] [c02669f8] schedule+0x54/0xf0 [ 65.255944] [df23dcc0] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 65.255950] [df23dd20] [c007a7d0] __pagevec_lru_add_active+0x7c/0x12c [ 65.255957] [df23dd50] [c007b18c] lru_cache_add_active+0x7c/0xa0 [ 65.255963] [df23dd60] [c00807bc] do_anonymous_page+0x3e8/0x560 [ 65.255970] [df23dda0] [c0085364] __handle_mm_fault+0x79c/0xc9c [ 65.255977] [df23de10] [c02695f4] do_page_fault+0x1e0/0x56c [ 65.255984] [df23df40] [c00130f4] handle_page_fault+0xc/0x80 [ 65.255995] --- Exception: 301 at 0x30008fac [ 65.256025] LR = 0x30008f64 [ 65.577536] NET: Registered protocol family 10 [ 65.577655] lo: Disabled Privacy Extensions [ 67.320563] BUG: scheduling while atomic: S10powernowd.ea/0x00000002/4480, CPU#0 [ 67.320572] Call Trace: [ 67.320575] [dd831c10] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 67.320591] [dd831c40] [c002d2c8] __schedule_bug+0x38/0x48 [ 67.320601] [dd831c50] [c0266690] __schedule+0x3d8/0x47c [ 67.320608] [dd831c80] [c02669f8] schedule+0x54/0xf0 [ 67.320613] [dd831c90] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 67.320620] [dd831cf0] [c0076738] get_zone_pcp+0x2c/0x58 [ 67.320631] [dd831d10] [c0076e14] free_hot_cold_page+0x104/0x204 [ 67.320637] [dd831d40] [c007abf0] put_page+0x50/0x154 [ 67.320643] [dd831d60] [c0080f0c] do_wp_page+0x37c/0xdfc [ 67.320651] [dd831da0] [c00855b0] __handle_mm_fault+0x9e8/0xc9c [ 67.320657] [dd831e10] [c02695f4] do_page_fault+0x1e0/0x56c [ 67.320664] [dd831f40] [c00130f4] handle_page_fault+0xc/0x80 [ 67.320676] --- Exception: 301 at 0xff2beb0 [ 67.320706] LR = 0xff2bcf4 [ 67.321239] BUG: scheduling while atomic: S10powernowd.ea/0x00000002/4480, CPU#0 [ 67.321244] Call Trace: [ 67.321246] [dd831c10] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 67.321258] [dd831c40] [c002d2c8] __schedule_bug+0x38/0x48 [ 67.321264] [dd831c50] [c0266690] __schedule+0x3d8/0x47c [ 67.321270] [dd831c80] [c02669f8] schedule+0x54/0xf0 [ 67.321276] [dd831c90] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 67.321282] [dd831cf0] [c0076738] get_zone_pcp+0x2c/0x58 [ 67.321289] [dd831d10] [c0076e14] free_hot_cold_page+0x104/0x204 [ 67.321295] [dd831d40] [c007abf0] put_page+0x50/0x154 [ 67.321300] [dd831d60] [c0080f0c] do_wp_page+0x37c/0xdfc [ 67.321307] [dd831da0] [c00855b0] __handle_mm_fault+0x9e8/0xc9c [ 67.321313] [dd831e10] [c02695f4] do_page_fault+0x1e0/0x56c [ 67.321319] [dd831f40] [c00130f4] handle_page_fault+0xc/0x80 [ 67.321327] --- Exception: 301 at 0xfefca70 [ 67.321340] LR = 0xff2beb8 [ 67.322045] BUG: scheduling while atomic: S10powernowd.ea/0x00000002/4480, CPU#0 [ 67.322050] Call Trace: [ 67.322053] [dd831c10] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 67.322063] [dd831c40] [c002d2c8] __schedule_bug+0x38/0x48 [ 67.322070] [dd831c50] [c0266690] __schedule+0x3d8/0x47c [ 67.322077] [dd831c80] [c02669f8] schedule+0x54/0xf0 [ 67.322082] [dd831c90] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 67.322088] [dd831cf0] [c0076738] get_zone_pcp+0x2c/0x58 [ 67.322096] [dd831d10] [c0076e14] free_hot_cold_page+0x104/0x204 [ 67.322102] [dd831d40] [c007abf0] put_page+0x50/0x154 [ 67.322107] [dd831d60] [c0080f0c] do_wp_page+0x37c/0xdfc [ 67.322113] [dd831da0] [c00855b0] __handle_mm_fault+0x9e8/0xc9c [ 67.322119] [dd831e10] [c02695f4] do_page_fault+0x1e0/0x56c [ 67.322125] [dd831f40] [c00130f4] handle_page_fault+0xc/0x80 [ 67.322132] --- Exception: 301 at 0xfeff6cc [ 67.322146] LR = 0xff2bf14 [ 67.322600] BUG: scheduling while atomic: S10powernowd.ea/0x00000002/4482, CPU#0 [ 67.322605] Call Trace: [ 67.322608] [ddf43c10] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 67.322618] [ddf43c40] [c002d2c8] __schedule_bug+0x38/0x48 [ 67.322625] [ddf43c50] [c0266690] __schedule+0x3d8/0x47c [ 67.322631] [ddf43c80] [c02669f8] schedule+0x54/0xf0 [ 67.322636] [ddf43c90] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 67.322642] [ddf43cf0] [c0076738] get_zone_pcp+0x2c/0x58 [ 67.322649] [ddf43d10] [c0076e14] free_hot_cold_page+0x104/0x204 [ 67.322655] [ddf43d40] [c007abf0] put_page+0x50/0x154 [ 67.322660] [ddf43d60] [c0080f0c] do_wp_page+0x37c/0xdfc [ 67.322666] [ddf43da0] [c00855b0] __handle_mm_fault+0x9e8/0xc9c [ 67.322672] [ddf43e10] [c02695f4] do_page_fault+0x1e0/0x56c [ 67.322678] [ddf43f40] [c00130f4] handle_page_fault+0xc/0x80 [ 67.322686] --- Exception: 301 at 0x10009e80 [ 67.322698] LR = 0x10009e70 [ 67.323852] BUG: scheduling while atomic: S10powernowd.ea/0x00000002/4482, CPU#0 [ 67.323859] Call Trace: [ 67.323861] [ddf43b80] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 67.323875] [ddf43bb0] [c002d2c8] __schedule_bug+0x38/0x48 [ 67.323883] [ddf43bc0] [c0266690] __schedule+0x3d8/0x47c [ 67.323889] [ddf43bf0] [c02669f8] schedule+0x54/0xf0 [ 67.323894] [ddf43c00] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 67.323900] [ddf43c60] [c0076738] get_zone_pcp+0x2c/0x58 [ 67.323909] [ddf43c80] [c0076e14] free_hot_cold_page+0x104/0x204 [ 67.323915] [ddf43cb0] [c007abf0] put_page+0x50/0x154 [ 67.323920] [ddf43cd0] [c008e6c4] free_page_and_swap_cache+0x44/0x80 [ 67.323930] [ddf43ce0] [c00825e4] unmap_vmas+0x2ac/0x6f0 [ 67.323936] [ddf43d70] [c00877e4] exit_mmap+0x78/0x10c [ 67.323942] [ddf43da0] [c00301a4] mmput+0x54/0xf4 [ 67.323949] [ddf43dc0] [c00a25cc] flush_old_exec+0x214/0x820 [ 67.323955] [ddf43e20] [c00d76c4] load_elf_binary+0x2bc/0x148c [ 67.323964] [ddf43eb0] [c00a1d14] search_binary_handler+0xf4/0x2e0 [ 67.323970] [ddf43ef0] [c00a3470] do_execve+0x218/0x248 [ 67.323975] [ddf43f20] [c0008d84] sys_execve+0x58/0xa8 [ 67.323981] [ddf43f40] [c0012cc8] ret_from_syscall+0x0/0x38 [ 67.323990] --- Exception: c01 at 0xff2c088 [ 67.324009] LR = 0x10005df4 [ 67.324869] BUG: scheduling while atomic: S10powernowd.ea/0x00000002/4482, CPU#0 [ 67.324874] Call Trace: [ 67.324877] [ddf43b80] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 67.324888] [ddf43bb0] [c002d2c8] __schedule_bug+0x38/0x48 [ 67.324895] [ddf43bc0] [c0266690] __schedule+0x3d8/0x47c [ 67.324901] [ddf43bf0] [c02669f8] schedule+0x54/0xf0 [ 67.324906] [ddf43c00] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 67.324912] [ddf43c60] [c0076738] get_zone_pcp+0x2c/0x58 [ 67.324920] [ddf43c80] [c0076e14] free_hot_cold_page+0x104/0x204 [ 67.324926] [ddf43cb0] [c007abf0] put_page+0x50/0x154 [ 67.324931] [ddf43cd0] [c008e6c4] free_page_and_swap_cache+0x44/0x80 [ 67.324940] [ddf43ce0] [c00825e4] unmap_vmas+0x2ac/0x6f0 [ 67.324945] [ddf43d70] [c00877e4] exit_mmap+0x78/0x10c [ 67.324951] [ddf43da0] [c00301a4] mmput+0x54/0xf4 [ 67.324957] [ddf43dc0] [c00a25cc] flush_old_exec+0x214/0x820 [ 67.324963] [ddf43e20] [c00d76c4] load_elf_binary+0x2bc/0x148c [ 67.324970] [ddf43eb0] [c00a1d14] search_binary_handler+0xf4/0x2e0 [ 67.324975] [ddf43ef0] [c00a3470] do_execve+0x218/0x248 [ 67.324981] [ddf43f20] [c0008d84] sys_execve+0x58/0xa8 [ 67.324986] [ddf43f40] [c0012cc8] ret_from_syscall+0x0/0x38 [ 67.324994] --- Exception: c01 at 0xff2c088 [ 67.325009] LR = 0x10005df4 [ 67.325073] BUG: scheduling while atomic: S10powernowd.ea/0x00000002/4482, CPU#0 [ 67.325076] Call Trace: [ 67.325079] [ddf43b80] [c000864c] show_stack+0x3c/0x194 (unreliable) [ 67.325086] [ddf43bb0] [c002d2c8] __schedule_bug+0x38/0x48 [ 67.325092] [ddf43bc0] [c0266690] __schedule+0x3d8/0x47c [ 67.325097] [ddf43bf0] [c02669f8] schedule+0x54/0xf0 [ 67.325102] [ddf43c00] [c0267c74] rt_spin_lock_slowlock+0xfc/0x224 [ 67.325108] [ddf43c60] [c0076738] get_zone_pcp+0x2c/0x58 [ 67.325114] [ddf43c80] [c0076e14] free_hot_cold_page+0x104/0x204 [ 67.325120] [ddf43cb0] [c007abf0] put_page+0x50/0x154 [ 67.325125] [ddf43cd0] [c008e6c4] free_page_and_swap_cache+0x44/0x80 [ 67.325133] [ddf43ce0] [c00825e4] unmap_vmas+0x2ac/0x6f0 [ 67.325139] [ddf43d70] [c00877e4] exit_mmap+0x78/0x10c [ 67.325144] [ddf43da0] [c00301a4] mmput+0x54/0xf4 [ 67.325150] [ddf43dc0] [c00a25cc] flush_old_exec+0x214/0x820 [ 67.325155] [ddf43e20] [c00d76c4] load_elf_binary+0x2bc/0x148c [ 67.325161] [ddf43eb0] [c00a1d14] search_binary_handler+0xf4/0x2e0 [ 67.325166] [ddf43ef0] [c00a3470] do_execve+0x218/0x248 [ 67.325171] [ddf43f20] [c0008d84] sys_execve+0x58/0xa8 [ 67.325177] [ddf43f40] [c0012cc8] ret_from_syscall+0x0/0x38 [ 67.325183] --- Exception: c01 at 0xff2c088 [ 67.325191] LR = 0x10005df4 Do you have a some suggestions? Thanks in advance. Ciao, Alessio - To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html