Description of problem: Attach below dmesg output with 2 occurences of the above BUG. Include first one here: usb 1-6.2: link qh8-0e01/f6ea7300 start 7 [1/2 us] BUG: unable to handle kernel NULL pointer dereference at 00000002 IP: [<c0427b7d>] sched_mc_power_savings_store+0x1/0x2f *pde = 7f3ab067 Oops: 0000 [#1] SMP DEBUG_PAGEALLOC Modules linked in: i915 drm ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi scsi_transport_iscsi coretemp nf_conntrack_ipv4 ipt_REJECT iptable_filter ip_tables nf_conntrack_netbios_ns nf_conntrack_ipv6 xt_state nf_conntrack xt_tcpudp ip6t_ipv6header ip6t_REJECT ip6table_filter ip6_tables x_tables ipv6 cpufreq_ondemand acpi_cpufreq fuse loop kvm_intel kvm sr_mod cdrom ppdev thinkpad_acpi hwmon snd_hda_intel ata_piix arc4 i2c_i801 snd_seq_dummy i2c_core battery ecb crypto_blkcipher sdhci_pci firewire_ohci firewire_core sdhci ac mmc_core yenta_socket rsrc_nonstatic snd_seq_oss crc_itu_t bay snd_seq_midi_event snd_seq snd_seq_device video snd_pcm_oss snd_mixer_oss output snd_pcm parport_pc parport snd_timer ata_generic snd_page_alloc iwl3945 rfkill pata_acpi snd_hwdep mac80211 snd iTCO_wdt iTCO_vendor_support hci_usb soundcore cfg80211 e1000e bluetooth dm_snapshot dm_zero dm_mirror dm_log dm_mod ahci ext3 jbd mbcache uhci_hcd ohci_hcd ehci_hcd Pid: 3079, comm: sched-powersave Not tainted (2.6.27-0.173.rc0.git11.fc10.i686 #1) EIP: 0060:[<c0427b7d>] EFLAGS: 00010282 CPU: 1 EIP is at sched_mc_power_savings_store+0x1/0x2f EAX: c07b8414 EBX: c0427b7c ECX: 00000002 EDX: ebe42000 ESI: c07b8454 EDI: ebe42000 EBP: f3932f44 ESP: f3932f30 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 Process sched-powersave (pid: 3079, ti=f3932000 task=f3b647a0 task.ti=f3932000) Stack: f3932f44 c05896eb c07b80b0 f7c2e7e8 f4191e70 f3932f74 c04d671a 00000002 00000002 b7fbb000 ebe46000 f4191e84 c07b80b0 c07b8454 00000002 ebe46000 c04d665c f3932f90 c0499ab9 f3932f9c b7fbb000 ebe46000 fffffff7 b7fbb000 Call Trace: [<c05896eb>] ? sysdev_class_store+0x25/0x2a [<c04d671a>] ? sysfs_write_file+0xbe/0xe9 [<c04d665c>] ? sysfs_write_file+0x0/0xe9 [<c0499ab9>] ? vfs_write+0x89/0xe4 [<c0499bb7>] ? sys_write+0x40/0x65 [<c0403d0e>] ? syscall_call+0x7/0xb [<c068007b>] ? arch_prepare_kprobe+0xf0/0x16b ======================= Code: c0 01 76 0d 8d 43 40 ba b4 f0 79 c0 e8 e5 f0 0a 00 5b 5d c3 55 89 e5 e8 4e 61 00 00 e8 1c 5c 03 00 e8 f9 60 00 00 31 c0 5d c3 55 <8a> 09 ba ea ff ff ff 89 e5 8d 41 d0 3c 01 77 1a 31 c0 80 f9 31 EIP: [<c0427b7d>] sched_mc_power_savings_store+0x1/0x2f SS:ESP 0068:f3932f30 ---[ end trace 114c6d5ae1aeef70 ]--- SELinux: initialized (dev fuse, type fuse), uses genfs_contexts System eventually hard froze. Had to reboot via button. Version-Release number of selected component (if applicable): kernel-2.6.27-0.173.rc0.git11.fc10.i686 How reproducible: Every boot. Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info:
Created attachment 312600 [details] dmesg output showing 2 BUGs
Created attachment 312601 [details] dmesg output from boot of 0.180 showing BUG + numerous "KMALLOC-64 poison/duplicate" bugs This is dmesg output from a cold boot of 0.180 showing above BUG, plus a number of KMALLOC-64 issues.
Got this just now with 0.180. Looks the same as above. BUG: unable to handle kernel NULL pointer dereference at 00000002 IP: [<c0427b9e>] sched_mc_power_savings_store+0x1/0x2f *pde = 7efdc067 Oops: 0000 [#2] SMP DEBUG_PAGEALLOC Modules linked in: i915 drm ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi scsi_transport_iscsi coretemp nf_conntrack_ipv4 ipt_REJECT iptable_filter ip_tables nf_conntrack_netbios_ns nf_conntrack_ipv6 xt_state nf_conntrack xt_tcpudp ip6t_ipv6header ip6t_REJECT ip6table_filter ip6_tables x_tables ipv6 cpufreq_ondemand acpi_cpufreq fuse loop kvm_intel kvm sr_mod cdrom ppdev thinkpad_acpi hwmon sdhci_pci snd_hda_intel sdhci firewire_ohci yenta_socket mmc_core i2c_i801 ata_piix i2c_core ata_generic firewire_core crc_itu_t iTCO_wdt iTCO_vendor_support rsrc_nonstatic pata_acpi snd_seq_dummy arc4 snd_seq_oss snd_seq_midi_event snd_seq ecb snd_seq_device crypto_blkcipher battery ac snd_pcm_oss snd_mixer_oss video output bay snd_pcm parport_pc parport snd_timer snd_page_alloc iwl3945 hci_usb rfkill bluetooth mac80211 snd_hwdep cfg80211 snd e1000e soundcore dm_snapshot dm_zero dm_mirror dm_log dm_mod ahci ext3 jbd mbcache uhci_hcd ohci_hcd ehci_hcd Pid: 3378, comm: sched-powersave Tainted: G D (2.6.27-0.180.rc0.git11.fc10.i686 #1) EIP: 0060:[<c0427b9e>] EFLAGS: 00010282 CPU: 0 EIP is at sched_mc_power_savings_store+0x1/0x2f EAX: c07b8414 EBX: c0427b9d ECX: 00000002 EDX: ebe0f000 ESI: c07b8454 EDI: ebe0f000 EBP: ebfd9f44 ESP: ebfd9f30 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 Process sched-powersave (pid: 3378, ti=ebfd9000 task=f3b747a0 task.ti=ebfd9000) Stack: ebfd9f44 c05896db c07b80b0 f7c2e7e8 f3f49e70 ebfd9f74 c04d6726 00000002 00000002 b7f9d000 ebf4b200 f3f49e84 c07b80b0 c07b8454 00000002 ebf4b200 c04d6668 ebfd9f90 c0499aed ebfd9f9c b7f9d000 ebf4b200 fffffff7 b7f9d000 Call Trace: [<c05896db>] ? sysdev_class_store+0x25/0x2a [<c04d6726>] ? sysfs_write_file+0xbe/0xe9 [<c04d6668>] ? sysfs_write_file+0x0/0xe9 [<c0499aed>] ? vfs_write+0x89/0xe4 [<c0499beb>] ? sys_write+0x40/0x65 [<c0403cba>] ? syscall_call+0x7/0xb [<c068007b>] ? arch_prepare_kprobe+0x110/0x16b ======================= Code: c0 01 76 0d 8d 43 40 ba b4 f0 79 c0 e8 d0 f0 0a 00 5b 5d c3 55 89 e5 e8 4d 61 00 00 e8 1b 5c 03 00 e8 f8 60 00 00 31 c0 5d c3 55 <8a> 09 ba ea ff ff ff 89 e5 8d 41 d0 3c 01 77 1a 31 c0 80 f9 31 EIP: [<c0427b9e>] sched_mc_power_savings_store+0x1/0x2f SS:ESP 0068:ebfd9f30 ---[ end trace 15a40c77a307c9e8 ]--- wlan0: authenticate with AP 00:12:17:46:42:51
Looks like the same with 0.183: http://www.kerneloops.org/submitresult.php?number=44805
Looks like the same with 0.186: http://www.kerneloops.org/submitresult.php?number=44828
Created attachment 312817 [details] dmesg output showing NULL pointer bugs. (also shows kmalloc-64 issues) More of the same .... (with 0.186)
Created attachment 312818 [details] Another screen shot.... Another crash....
Comment on attachment 312818 [details] Another screen shot.... Sorry, filed this on the wrong BZ....
Still with recent kernels?
Nope. Haven't seen this in quite a while. Close?