Hi, about an half hour ago, one of my machines froze completely, nothing worked (no m-sysrq either) and I had to hardreset and reboot. /var/log/warn says: [....] Apr 1 17:25:15 liesel kernel: sd 8:0:0:1: [sdd] Assuming drive cache: write through Apr 1 17:25:15 liesel kernel: sd 8:0:0:1: [sdd] Assuming drive cache: write through Apr 1 17:25:15 liesel kernel: sd 8:0:0:1: [sdd] Assuming drive cache: write through Apr 1 17:25:17 liesel kernel: sd 8:0:0:0: [sdc] Assuming drive cache: write through Apr 1 17:25:17 liesel kernel: sd 8:0:0:0: [sdc] Assuming drive cache: write through Apr 1 17:45:35 liesel squid[5637]: WARNING: Very large maximum_object_size_in_memory settings can have negative impact on performance Apr 1 17:45:37 liesel squid[5637]: WARNING: Very large maximum_object_size_in_memory settings can have negative impact on performance Apr 1 18:20:33 liesel kernel: kernel BUG at mm/slab.c:2989! Apr 1 18:20:33 liesel kernel: CPU 0 Apr 1 18:20:33 liesel kernel: Modules linked in: nls_iso8859_1 nls_cp437 vfat fat usb_storage xt_pkttype ipt_LOG xt_limit aes_x86_64 aes_generic af_packet it87 hwmon_vid binfmt_misc snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device cpufreq_conservative cpufreq_ondemand cpufreq_userspace cpufreq_powersave powernow_k8 freq_table mperf(P) xt_NOTRACK xt_state iptable_raw nf_conntrack_netbios_ns nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip6_tables ipt_REJECT iptable_filter ip_tables uhci_hcd rt73usb rt2x00usb snd_hda_codec_realtek snd_hda_intel rt2x00lib snd_hda_codec led_class snd_pcm i2c_piix4 snd_timer ppdev k10temp sr_mod hwmon snd cdrom mac80211 i2c_core r8169 button soundcore joydev cfg80211 snd_page_alloc sg pcspkr parport_pc mii parport rfkill xts usbhid sd_mod ohci_hcd ehci_hcd pata_atiixp rtc_cmos rtc_core rtc_lib ahci usbcore hmac dm_snapshot dm_crypt dm_mod gf128mul sha512_generic sha256_generic twofish_x86_64 twofish_common serpent cbc tgr192 loop ecb arc4 fuse edd ide_pci_generic amd74xx ide_core fa Apr 1 18:20:33 liesel kernel: Apr 1 18:20:33 liesel kernel: Pid: 10452, comm: gnome-panel Tainted: P 2.6.34-rc3 #1 GA-MA770-UD3/GA-MA770-UD3 Apr 1 18:20:33 liesel kernel: RIP: 0010:[<ffffffff810d063a>] [<ffffffff810d063a>] cache_alloc_refill+0x1ea/0x270 Apr 1 18:20:33 liesel kernel: RSP: 0018:ffff880177151d20 EFLAGS: 00010046 Apr 1 18:20:33 liesel kernel: RAX: 0000000000000090 RBX: ffff88022f797800 RCX: 0000000000000020 Apr 1 18:20:33 liesel kernel: RDX: ffff880009ff3000 RSI: ffff88000ab8d000 RDI: 000000000000001c Apr 1 18:20:33 liesel kernel: RBP: 000000000000001c R08: ffff88022f742c50 R09: ffff88022f742c60 Apr 1 18:20:33 liesel kernel: R10: dead000000200200 R11: dead000000100100 R12: ffff88022f7d0b00 Apr 1 18:20:33 liesel kernel: R13: ffff88022f742c40 R14: 0000000000000000 R15: ffff88022f799000 Apr 1 18:20:33 liesel kernel: FS: 00007f24fe2e07d0(0000) GS:ffff880005e00000(0000) knlGS:00000000f741f6d0 Apr 1 18:20:33 liesel kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Apr 1 18:20:33 liesel kernel: CR2: 00007f24f6d08c00 CR3: 0000000174157000 CR4: 00000000000006f0 Apr 1 18:20:33 liesel kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Apr 1 18:20:33 liesel kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Apr 1 18:20:33 liesel kernel: Process gnome-panel (pid: 10452, threadinfo ffff880177150000, task ffff88022a3aa080) Apr 1 18:20:33 liesel kernel: ffff88022b0d2b48 00000000000412d0 ffff88022f742c80 ffff88000abba818 Apr 1 18:20:33 liesel kernel: <0> 00000000000000d0 0000000000000202 ffff88022f7d0b00 ffff88017fbd3978 Apr 1 18:20:33 liesel kernel: <0> 000000000000000a ffffffff810d0992 ffff88000abba818 ffff88000abba818 Apr 1 18:20:33 liesel kernel: [<ffffffff810d0992>] ? kmem_cache_alloc+0x122/0x150 Apr 1 18:20:33 liesel kernel: [<ffffffff810bce73>] ? anon_vma_fork+0x53/0xa0 Apr 1 18:20:33 liesel kernel: [<ffffffff8103d3b8>] ? dup_mm+0x238/0x510 Apr 1 18:20:33 liesel kernel: [<ffffffff8103dfbb>] ? copy_process+0x8eb/0x1000 Apr 1 18:20:33 liesel kernel: [<ffffffff8103e762>] ? do_fork+0x92/0x3c0 Apr 1 18:20:33 liesel kernel: [<ffffffff81028727>] ? do_page_fault+0x167/0x380 Apr 1 18:20:33 liesel kernel: [<ffffffff81003053>] ? stub_clone+0x13/0x20 Apr 1 18:20:33 liesel kernel: [<ffffffff81002d6b>] ? system_call_fastpath+0x16/0x1b Apr 1 18:20:33 liesel kernel: RSP <ffff880177151d20> Apr 1 18:20:33 liesel kernel: ---[ end trace 294065aff98fa970 ]--- Apr 1 18:20:33 liesel kernel: BUG: scheduling while atomic: gnome-panel/10452/0x00000002 Apr 1 18:20:33 liesel kernel: Modules linked in: nls_iso8859_1 nls_cp437 vfat fat usb_storage xt_pkttype ipt_LOG xt_limit aes_x86_64 aes_generic af_packet it87 hwmon_vid binfmt_misc snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device cpufreq_conservative cpufreq_ondemand cpufreq_userspace cpufreq_powersave powernow_k8 freq_table mperf(P) xt_NOTRACK xt_state iptable_raw nf_conntrack_netbios_ns nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip6_tables ipt_REJECT iptable_filter ip_tables uhci_hcd rt73usb rt2x00usb snd_hda_codec_realtek snd_hda_intel rt2x00lib snd_hda_codec led_class snd_pcm i2c_piix4 snd_timer ppdev k10temp sr_mod hwmon snd cdrom mac80211 i2c_core r8169 button soundcore joydev cfg80211 snd_page_alloc sg pcspkr parport_pc mii parport rfkill xts usbhid sd_mod ohci_hcd ehci_hcd pata_atiixp rtc_cmos rtc_core rtc_lib ahci usbcore hmac dm_snapshot dm_crypt dm_mod gf128mul sha512_generic sha256_generic twofish_x86_64 twofish_common serpent cbc tgr192 loop ecb arc4 fuse edd ide_pci_generic amd74xx ide_core fa Apr 1 18:20:33 liesel kernel: Pid: 10452, comm: gnome-panel Tainted: P D 2.6.34-rc3 #1 Apr 1 18:20:33 liesel kernel: Call Trace: Apr 1 18:20:33 liesel kernel: [<ffffffff8142a2e0>] ? schedule+0x520/0x840 Apr 1 18:20:33 liesel kernel: [<ffffffff8103f52b>] ? __call_console_drivers+0x6b/0x80 Apr 1 18:20:33 liesel kernel: [<ffffffff8105bc56>] ? up+0x16/0x50 Apr 1 18:20:33 liesel kernel: [<ffffffff8142c22d>] ? rwsem_down_failed_common+0xcd/0x200 Apr 1 18:20:33 liesel kernel: [<ffffffff8142c3b2>] ? rwsem_down_read_failed+0x22/0x2b Apr 1 18:20:33 liesel kernel: [<ffffffff8129edd4>] ? call_rwsem_down_read_failed+0x14/0x30 Apr 1 18:20:33 liesel kernel: [<ffffffff8142b86e>] ? down_read+0xe/0x10 Apr 1 18:20:33 liesel kernel: [<ffffffff810759e2>] ? acct_collect+0x42/0x1a0 Apr 1 18:20:33 liesel kernel: [<ffffffff810435f4>] ? do_exit+0x6d4/0x820 Apr 1 18:20:33 liesel kernel: [<ffffffff8142994d>] ? printk+0x40/0x4b Apr 1 18:20:33 liesel kernel: [<ffffffff810403cd>] ? kmsg_dump+0x7d/0x140 Apr 1 18:20:33 liesel kernel: [<ffffffff81007391>] ? oops_end+0xe1/0xf0 Apr 1 18:20:33 liesel kernel: [<ffffffff81004904>] ? do_invalid_op+0x84/0xa0 Apr 1 18:20:33 liesel kernel: [<ffffffff810d063a>] ? cache_alloc_refill+0x1ea/0x270 Apr 1 18:20:33 liesel kernel: [<ffffffff8142a1a7>] ? schedule+0x3e7/0x840 Apr 1 18:20:33 liesel kernel: [<ffffffff81003995>] ? invalid_op+0x15/0x20 Apr 1 18:20:33 liesel kernel: [<ffffffff810d063a>] ? cache_alloc_refill+0x1ea/0x270 Apr 1 18:20:33 liesel kernel: [<ffffffff810d0992>] ? kmem_cache_alloc+0x122/0x150 Apr 1 18:20:33 liesel kernel: [<ffffffff810bce73>] ? anon_vma_fork+0x53/0xa0 Apr 1 18:20:33 liesel kernel: [<ffffffff8103d3b8>] ? dup_mm+0x238/0x510 Apr 1 18:20:33 liesel kernel: [<ffffffff8103dfbb>] ? copy_process+0x8eb/0x1000 Apr 1 18:20:33 liesel kernel: [<ffffffff8103e762>] ? do_fork+0x92/0x3c0 Apr 1 18:20:33 liesel kernel: [<ffffffff81028727>] ? do_page_fault+0x167/0x380 Apr 1 18:20:33 liesel kernel: [<ffffffff81003053>] ? stub_clone+0x13/0x20 Apr 1 18:20:33 liesel kernel: [<ffffffff81002d6b>] ? system_call_fastpath+0x16/0x1b Apr 1 19:03:57 liesel rpcbind: cannot create socket for udp6 Apr 1 19:03:57 liesel rpcbind: cannot create socket for tcp6 Apr 1 19:04:01 liesel kernel: nf_conntrack version 0.5.0 (16384 buckets, 65536 max) Apr 1 19:04:01 liesel kernel: CONFIG_NF_CT_ACCT is deprecated and will be removed soon. Please use Apr 1 19:04:01 liesel kernel: nf_conntrack.acct=1 kernel parameter, acct=1 nf_conntrack module option or Apr 1 19:04:01 liesel kernel: sysctl net.netfilter.nf_conntrack_acct=1 to enable it. [....] Feel free to drop me a note if you need more information. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href