Package: user-mode-linux Version: 2.6.24-1um-1 Severity: normal I use Debian lenny guest environment in UML to automatically build software for the Nokia Maemo environment.
The overnight all work fine using UML 2.6.24-1um-1. However, UML 2.6.25-1um-2 and UML 2.6.26-1um-2 both crash, early in each build, with the kernel panic shown below. I can easily reproduce this with my automated build system although I have not yet found another stress test (even doing a kernel build in the guest environment) which reproduces it. The crash details are: Eeek! page_mapcount(page) went negative! (-1) page pfn = 2cc page->flags = 400 page->count = 1 page->mapping = 00000000 vma->vm_ops = 0x83accc8 vma->vm_ops->fault = special_mapping_fault+0x0/0x60 BUG: failure at mm/rmap.c:669/page_remove_rmap()! Kernel panic - not syncing: BUG! EIP: 0073:[<080a407a>] CPU: 0 Not tainted ESP: 007b:bf9ec8fc EFLAGS: 00000246 Not tainted EAX: ffffffda EBX: 00008000 ECX: 001b6000 EDX: 00000005 ESI: 00000812 EDI: 00000004 EBP: 00000000 DS: 007b ES: 007b 277ebd38: [<0809ec74>] notifier_call_chain+0x34/0x70 277ebd5c: [<08311f2a>] panic+0x71/0xff 277ebd78: [<080cb4e1>] page_remove_rmap+0x151/0x160 277ebd90: [<080c3f99>] unmap_vmas+0x2c9/0x600 277ebda4: [<08060fd3>] flush_tlb_page+0x113/0x1f0 277ebdf8: [<080c7895>] unmap_region+0xa5/0x150 277ebe2c: [<080c8a98>] do_munmap+0x1d8/0x290 277ebe58: [<080c9544>] mmap_region+0xd4/0x590 277ebe90: [<080c7230>] arch_get_unmapped_area+0x0/0x160 277ebeb8: [<080b4870>] generic_file_mmap+0x0/0x60 277ebec4: [<080c9c1a>] do_mmap_pgoff+0x21a/0x300 277ebf00: [<08060846>] sys_mmap2+0x76/0xe0 277ebf30: [<080627aa>] handle_syscall+0x8a/0xc0 277ebf4c: [<080607d0>] sys_mmap2+0x0/0xe0 277ebf78: [<080789ca>] userspace+0x48a/0x510 277ebf90: [<08075675>] os_set_thread_area+0x25/0x50 277ebfec: [<0805f72d>] fork_handler+0x5d/0x70 -- System Information: Debian Release: lenny/sid APT prefers testing APT policy: (900, 'testing') Architecture: i386 (i686) Kernel: Linux 2.6.25-2-686 (SMP w/1 CPU core) Locale: [EMAIL PROTECTED], [EMAIL PROTECTED] (charmap=ISO-8859-15) (ignored: LC_ALL set to [EMAIL PROTECTED]) Shell: /bin/sh linked to /bin/bash Versions of packages user-mode-linux depends on: ii uml-utilities 20070815-1.1 User-mode Linux (utility programs) user-mode-linux recommends no packages. Versions of packages user-mode-linux suggests: ii konsole [x-terminal- 4:3.5.9.dfsg.1-2+b1 X terminal emulator for KDE pn linux-patch-skas <none> (no description available) pn rootstrap <none> (no description available) ii rxvt [x-terminal-emu 1:2.6.4-14 VT102 terminal emulator for the X pn slirp <none> (no description available) pn user-mode-linux-doc <none> (no description available) ii xterm [x-terminal-em 235-1 X terminal emulator -- no debconf information -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]