Le 30.05.2006 11:29, Andrew Morton a écrit : > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.17-rc5/2.6.17-rc5-mm1/ Hello, I've got this nice BUG: pktcdvd: writer pktcdvd0 mapped to hdc BUG: unable to handle kernel NULL pointer dereference at virtual address 00000084 printing eip: c01118f1 *pde = 00000000 Oops: 0000 [#1] last sysfs file: /block/pktcdvd0/removable Modules linked in: pktcdvd lp parport_pc parport snd_pcm_oss snd_mixer_oss snd_ens1371 gameport snd_rawmidi snd_seq_device snd_ac97_codec snd_ac97_bus snd_pcm snd_timer snd_page_alloc snd soundcore af_packet floppy ide_cd cdrom loop aes dm_crypt nls_iso8859_1 nls_cp850 vfat fat reiser4 reiserfs via_agp agpgart video joydev ohci1394 usbhid ieee1394 uhci_hcd usbcore dm_mirror dm_mod via82cxxx CPU: 0 EIP: 0060:[] Not tainted VLI EFLAGS: 00010006 (2.6.17-rc5-mm1 #11) EIP is at do_page_fault+0xb4/0x5bc eax: d6750084 ebx: d6750000 ecx: 0000007b edx: 00000000 esi: d6758000 edi: c011183d ebp: d675007c esp: d6750044 ds: 007b es: 007b ss: 0068 Process (pid: 0, threadinfo=d674f000 task=d657c000) Stack: 00000000 d6750084 00000000 00000049 00000084 00000000 00001e2e 02001120 00000027 00000022 00000055 d6750000 d6758000 c011183d d67500f0 c010340d d6750000 0000007b 00000000 d6758000 c011183d d67500f0 d67500f8 0000007b Call Trace: [] error_code+0x39/0x40 Code: 00 00 c0 81 0f 84 12 02 00 00 e9 1c 05 00 00 8b 45 cc f7 40 30 00 02 02 00 74 06 e8 68 af 01 00 fb f7 43 14 ff ff ff ef 8b 55 d0 <8b> b2 84 00 00 00 0f 85 e5 01 00 00 85 f6 0f 84 dd 01 00 00 8d EIP: [] do_page_fault+0xb4/0x5bc SS:ESP 0068:d6750044 <0>Kernel panic - not syncing: Fatal exception in interrupt BUG: warning at kernel/panic.c:138/panic() [] show_trace_log_lvl+0x4b/0xf4 [] show_trace+0xd/0x10 [] dump_stack+0x19/0x1b [] panic+0x14d/0x161 [] die+0x231/0x266 [] do_page_fault+0x486/0x5bc SysRq : Emergency Sync SysRq : Emergency Sync SysRq : Emergency Remount R/O SysRq : Emergency Sync SysRq : Resetting I also tried 2.6.17-rc5-mm1-lockdep with Lockdep-annotate-rpc_populate-for-child-relationship-of-its-mutex.patch and lock-validator-irqflags-trace-entry.S-fix.patch, with no more luck: pktcdvd: writer pktcdvd0 mapped to hdc BUG: unable to handle kernel paging request at virtual address ff384345 printing eip: c012d237 *pde = 00000000 BUG: unable to handle kernel paging request at virtual address ff383b65 printing eip: c0111c9b *pde = 00000000 Oops: 0002 [#1] last sysfs file: /block/pktcdvd0/removable Modules linked in: pktcdvd lp parport_pc parport snd_pcm_oss snd_mixer_oss snd_ens1371 gameport snd_rawmidi snd_seq_device snd_ac97_codec snd_ac97_bus snd_pcm snd_timer snd_page_alloc snd soundcore af_packet floppy ide_cd cdrom loop aes dm_crypt nls_iso8859_1 nls_cp850 vfat fat reiser4 reiserfs via_agp agpgart video joydev ohci1394 ieee1394 usbhid uhci_hcd usbcore dm_mirror dm_mod via82cxxx CPU: 0 EIP: 0060:[] Not tainted VLI EFLAGS: 00010046 (2.6.17-rc5-mm1-lockdep #13) EIP is at do_page_fault+0x45e/0x5bc eax: ff383965 ebx: ff384345 ecx: c0116a48 edx: d8cad000 esi: 00000000 edi: c02ad73c ebp: d882703c esp: d8827004 ds: 007b es: 007b ss: 0068 Process % (pid: 34, threadinfo=d8826000 task=d8cad000) Stack: 00000000 d8827044 ff383965 ff383965 ff384345 ff383965 d8827044 c02ad69b 00000000 0000000e 0000000b 00000096 d8827000 c011183d d882708c c010340d 00000096 00000000 00000000 d8827000 00000000 d882708c ff383965 0000007b Call Trace: [] error_code+0x39/0x40 Code: e6 00 f0 ff ff 81 e3 00 f0 3f 00 89 d8 c1 e8 0c ff b4 86 00 00 00 c0 68 4d d7 2a c0 e8 a1 53 00 00 59 5e eb 03 8b 5d d8 8b 45 d0 <89> 98 00 02 00 00 c7 80 04 02 00 00 0e 00 00 00 8b 55 c8 89 90 EIP: [] do_page_fault+0x45e/0x5bc SS:ESP 0068:d8827004 <0>Kernel panic - not syncing: Fatal exception in interrupt <0>------------[ cut here ]------------ kernel BUG at kernel/posix-cpu-timers.c:1292! invalid opcode: 0000 [#2] last sysfs file: /block/pktcdvd0/removable Modules linked in: pktcdvd lp parport_pc parport snd_pcm_oss snd_mixer_oss snd_ens1371 gameport snd_rawmidi snd_seq_device snd_ac97_codec snd_ac97_bus snd_pcm snd_timer snd_page_alloc snd soundcore af_packet floppy ide_cd cdrom loop aes dm_crypt nls_iso8859_1 nls_cp850 vfat fat reiser4 reiserfs via_agp agpgart video joydev ohci1394 ieee1394 usbhid uhci_hcd usbcore dm_mirror dm_mod via82cxxx CPU: 0 EIP: 0060:[] Not tainted VLI EFLAGS: 00010002 (2.6.17-rc5-mm1-lockdep #13) EIP is at run_posix_cpu_timers+0x91/0x6a2 eax: b7e68000 ebx: d8cad000 ecx: d8cad000 edx: df434aa0 esi: d8cad000 edi: 00000000 ebp: c03f3fa4 esp: c03f3f4c ds: 007b es: 007b ss: 0068 Process % (pid: 34, threadinfo=c03f3000 task=d8cad000) Stack: c011e997 00000000 00000000 c02ebc30 d8cad000 00000000 00000001 000037ef 00000000 00000000 00000000 000008d8 d8cad000 00000000 c03f3fa4 c0112ddf d8cad000 c03f3f90 c03f3f90 d8cad000 00000000 00000000 c03f3fb4 c011ede4 Call Trace: [] update_process_times+0x58/0x5c [] timer_interrupt+0x5e/0x96 [] handle_IRQ_event+0x20/0x50 [] handle_level_irq+0x71/0xb9 [] do_IRQ+0x5c/0x7c [] common_interrupt+0x25/0x2c Code: 00 89 d1 09 c1 0f 84 29 06 00 00 39 57 54 0f 82 20 06 00 00 77 09 39 47 50 0f 82 15 06 00 00 8b 75 b8 83 be 90 00 00 00 00 74 08 <0f> 0b 0c 05 ad e9 2a c0 b8 00 6a 35 c0 be 14 00 00 00 e8 32 cf EIP: [] run_posix_cpu_timers+0x91/0x6a2 SS:ESP 0068:c03f3f4c <0>Kernel panic - not syncing: Fatal exception in interrupt BUG: warning at kernel/panic.c:138/panic() [] show_trace_log_lvl+0x4b/0xf4 [] show_trace+0xd/0x10 [] dump_stack+0x19/0x1b [] panic+0x14d/0x161 [] die+0x231/0x266 [] do_trap+0x7c/0x96 [] do_invalid_op+0x89/0x93 [] error_code+0x39/0x40 SysRq : Emergency Sync SysRq : Emergency Sync SysRq : Emergency Remount R/O SysRq : Emergency Sync SysRq : Resetting BUG: warning at drivers/pci/search.c:234/pci_get_subsys() [] show_trace_log_lvl+0x4b/0xf4 [] show_trace+0xd/0x10 [] dump_stack+0x19/0x1b [] pci_get_subsys+0x41/0xca [] pci_get_device+0xe/0x10 [] mach_reboot_fixups+0x15/0x21 [] machine_emergency_restart+0x23/0xdc [] emergency_restart+0x8/0xa [] sysrq_handle_reboot+0xe/0x10 [] __handle_sysrq+0x7a/0xf1 [] handle_sysrq+0x13/0x16 [] kbd_event+0x2b6/0x4c7 [] input_event+0x401/0x424 [] atkbd_report_key+0x5e/0x7e [] atkbd_interrupt+0x41d/0x50b [] serio_interrupt+0x38/0x71 [] i8042_interrupt+0x1da/0x1ec [] handle_IRQ_event+0x20/0x50 [] handle_level_irq+0x71/0xb9 [] do_IRQ+0x6b/0x7c [] common_interrupt+0x25/0x2c Linux version 2.6.17-rc4-mm3 (laurent@antares.localdomain) (gcc version 4.1.1 20060330 (prerelease)) #10 Tue May 23 01:35:36 CEST 2006 Any idea ? Or is time to do a bissection ? ~~ laurent