On 12/01/2013 09:05 PM, Toralf Förster wrote: > Kernel panic - not syncing: do_syscall_stub : PTRACE_SETREGS failed, errno = 3 > > CPU: 0 PID: 1265 Comm: rmdir Tainted: G W 3.13.0-rc2-00001-gaf91706 > #3 > Stack: > 084bf793 084bf793 46d47bb8 00000004 085d0547 00006f91 00000003 00000011 > 46d47bc8 084247eb 00000000 00000000 46d47bf0 08421c50 084cb200 08607720 > 084c8084 46d47c00 00000000 00006f91 00000003 00000011 46d47c24 08073d55 > Call Trace: > [<08073d55>] ? run_syscall_stub+0x125/0x2c0 > [<084247eb>] dump_stack+0x26/0x28 > [<08421c50>] panic+0x7a/0x180 > [<08073d55>] run_syscall_stub+0x125/0x2c0 > [<080cba88>] ? unlock_page+0x28/0x30 > [<0807429f>] map+0xff/0x110 > [<080616ff>] flush_tlb_page+0xef/0x1d0 > [<08061db1>] handle_page_fault+0x241/0x290 > [<08062c9e>] do_op_one_page+0x5e/0x1a0 > [<08071dfe>] ? set_signals+0x1e/0x40 > [<080a3e71>] ? up_write+0x11/0x20 > [<08062e19>] buffer_op+0x39/0xf0 > [<08062af0>] ? clear_chunk+0x0/0x30 > [<08063169>] clear_user+0x69/0x90 > [<08062af0>] ? clear_chunk+0x0/0x30 > [<080df00e>] ? vm_mmap+0x4e/0x60 > [<08149f73>] padzero+0x23/0x40 > [<0814bec9>] load_elf_binary+0xad9/0xe60 > [<08052304>] ? init_zswap+0xa1/0x21e > [<08052160>] ? __alloc_bootmem_node_high+0x1d/0x28 > [<08051f14>] ? __alloc_bootmem_nopanic+0x1/0x2c > [<080509f4>] ? pcpu_setup_first_chunk+0x527/0x834 > [<08109bd5>] search_binary_handler+0x35/0x90 > [<0810a055>] do_execve+0x425/0x680 > [<081035a0>] ? default_llseek+0x70/0x150 > [<08103788>] ? SyS_llseek+0x18/0xd0 > [<0810a5b2>] SyS_execve+0x42/0x60 > [<081035a0>] ? default_llseek+0x70/0x150 > [<08103788>] ? SyS_llseek+0x18/0xd0 > [<081035d8>] ? default_llseek+0xa8/0x150 > [<08062a94>] handle_syscall+0x64/0x80 > [<081034a0>] ? generic_file_llseek+0x40/0x60 > [<081035a0>] ? default_llseek+0x70/0x150 > [<08103788>] ? SyS_llseek+0x18/0xd0 > [<081035a0>] ? default_llseek+0x70/0x150 > [<081035d8>] ? default_llseek+0xa8/0x150 > [<083d70c1>] ? ptrace+0x31/0x80 > [<08079fb2>] ? get_fp_registers+0x22/0x40 > [<08075085>] userspace+0x475/0x5f0 > [<083d70c1>] ? ptrace+0x31/0x80 > [<0807a516>] ? os_set_thread_area+0x26/0x40 > [<08079510>] ? do_set_thread_area+0x20/0x50 > [<08079688>] ? arch_switch_tls+0xb8/0x100 > [<0805f750>] fork_handler+0x60/0x70
This clear_user() stack-trace reminds me a lot of the problem I just had, and Richard solved for me. It was that I used an "make oldconfig" with a previous Kernel .config file. When doing a new "make defconfig" then manually "make xconfig" to turn on the extras I need like iscsi and pnfs It all went back to fine. (Also for me host and guest 64bit, I had to manually set 64bit for the guest compilation.) [Which was a smack on my own head because I know from the past that UML needs a good'n fresh "make defconfig" every once in a while. And I just forgot about that] Just my $0.017 Boaz ------------------------------------------------------------------------------ Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349351&iu=/4140/ostg.clktrk _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel