Hi I am all of a sudden getting lots of these Call Trace reports in the log and just prior to that was having Jul 9 10:12:03 7-of-9 kernel: [ 9092.341622] claws-mail[2310] general protection ip:7feef8e5b2f1 sp:7fff657bdcd0 error:0 in libhogweed.so.2.1[7feef8e50000+12000] Jul 9 10:12:36 7-of-9 kernel: [ 9124.906472] claws-mail[2311] general protection ip:7f13fffcc2f1 sp:7fff0657e680 error:0 in libhogweed.so.2.1[7f13fffc1000+12000] Jul 9 10:12:56 7-of-9 kernel: [ 9145.464138] claws-mail[2317] general protection ip:7f5f6c7822f1 sp:7fff53f85e50 error:0 in libhogweed.so.2.1[7f5f6c777000+12000] Jul 9 10:13:20 7-of-9 kernel: [ 9169.400598] claws-mail[2336] general protection ip:7fb1812c42f1 sp:7fff16b3dfd0 error:0 in libhogweed.so.2.1[7fb1812b9000+12000] Jul 9 10:14:50 7-of-9 kernel: [ 9258.673119] claws-mail[2349] general protection ip:7f59677942f1 sp:7fff31426d00 error:0 in libhogweed.so.2.1[7f5967789000+12000] Jul 9 10:19:00 7-of-9 kernel: [ 9509.316731] firefox[2361] general protection ip:7f3e2c9bd2f1 sp:7fffcc480770 error:0 in libhogweed.so.2.1[7f3e2c9b2000+12000] Jul 9 10:19:32 7-of-9 kernel: [ 9540.938608] chromium[2366] general protection ip:7f3cd5eb72f1 sp:7fff66dffdb0 error:0 in libhogweed.so.2.1[7f3cd5eac000+12000] Jul 9 13:22:04 7-of-9 kernel: [ 376.568236] Pid: 1347, comm: nepomukindexer Not tainted 3.4.4-2-ARCH #1 Jul 9 13:22:04 7-of-9 kernel: [ 376.568239] Call Trace: Jul 9 13:22:04 7-of-9 kernel: [ 376.568246] [<ffffffff8112f486>] print_bad_pte+0x1e6/0x270 Jul 9 13:22:04 7-of-9 kernel: [ 376.568250] [<ffffffff8113162d>] unmap_single_vma+0x4fd/0x820 Jul 9 13:22:04 7-of-9 kernel: [ 376.568254] [<ffffffff8110c40a>] ? unlock_page+0x2a/0x40 Jul 9 13:22:04 7-of-9 kernel: [ 376.568257] [<ffffffff811321ae>] unmap_vmas+0x5e/0xb0 Jul 9 13:22:04 7-of-9 kernel: [ 376.568260] [<ffffffff8113a07f>] exit_mmap+0x9f/0x150 Jul 9 13:22:04 7-of-9 kernel: [ 376.568264] [<ffffffff8104e909>] mmput+0x59/0x130 Jul 9 13:22:04 7-of-9 kernel: [ 376.568267] [<ffffffff810558c8>] exit_mm+0x108/0x130 Jul 9 13:22:04 7-of-9 kernel: [ 376.568269] [<ffffffff81055a4f>] do_exit+0x15f/0x940 Jul 9 13:22:04 7-of-9 kernel: [ 376.568272] [<ffffffff81138863>] ? do_munmap+0x1e3/0x3d0 Jul 9 13:22:04 7-of-9 kernel: [ 376.568275] [<ffffffff8105657f>] do_group_exit+0x3f/0xa0 Jul 9 13:22:04 7-of-9 kernel: [ 376.568277] [<ffffffff810565f7>] sys_exit_group+0x17/0x20 Jul 9 13:22:04 7-of-9 kernel: [ 376.568281] [<ffffffff8146a8e9>] system_call_fastpath+0x16/0x1b Jul 9 13:22:04 7-of-9 kernel: [ 376.568283] Disabling lock debugging due to kernel taint Are these related and if so what has brought them about The only thing i can find on libhogweed is to do with a gnome chat client that i do not have either installed . system as listed in sig block Thanks pete . -- Linux 7-of-9 3.4.4-2-ARCH #1 SMP PREEMPT Sun Jun 24 18:59:47 CEST 2012 x86_64 GNU/Linux . KDE 4.8.4