Hello List, running the following command
/sbin/grub-install --root-directory=/mnt --no-floppy /dev/sda from a nfsroot system with kernel 2.6.20.2 (x86_64) results in: ------------[ cut here ]------------ kernel BUG at fs/nfs/write.c:505! invalid opcode: 0000 [1] SMP CPU 0 Modules linked in: ipv6 genrtc Pid: 1464, comm: grub-install Not tainted 2.6.20.2 #1 RIP: 0010:[<ffffffff8032fb83>] [<ffffffff8032fb83>] nfs_wait_on_requests_locked+0x43/0xb2 RSP: 0018:ffff81007d669ca8 EFLAGS: 00010246 RAX: 00000000fffff0ba RBX: 0000000000000000 RCX: ffffffff802917aa RDX: 0000000000000000 RSI: ffff81007d669cb0 RDI: ffff810002f5f9d8 RBP: ffff810002f5f898 R08: 0000000000000001 R09: 0000000000000286 R10: 7fffffffffffffff R11: 0000000000000286 R12: 74d83948d2310001 R13: 0000000000000000 R14: ffffffffffffffff R15: 0000000000000000 FS: 00002b24eb8214a0(0000) GS:ffffffff809d6000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000596d88 CR3: 000000007d594000 CR4: 00000000000006e0 Process grub-install (pid: 1464, threadinfo ffff81007d668000, task ffff81007e885840) Stack: ffff810002f5f898 ffffffff802917aa 0000000000000000 ffff810002f5fb58 0000000000000020 ffff810002f5f898 ffff81007d669da8 ffffffff80331245 000000000000002e ffff81007d669e48 0000000000000020 0000000000000000 Call Trace: [<ffffffff802917aa>] bd_forget+0x8d/0x8e [<ffffffff80331245>] nfs_sync_mapping_wait+0xbe/0x1ec [<ffffffff80331486>] nfs_sync_mapping_range+0x80/0xa1 [<ffffffff80328a1c>] nfs_getattr+0x2e/0x9b [<ffffffff80272313>] vfs_getattr+0x1d/0x2b [<ffffffff802723aa>] vfs_lstat_fd+0x2f/0x47 [<ffffffff8021c3ce>] do_page_fault+0x279/0x572 [<ffffffff80237c17>] do_sigaction+0x6b/0x1b0 [<ffffffff8027270a>] sys_newlstat+0x19/0x31 [<ffffffff807231ed>] error_exit+0x0/0x84 [<ffffffff80209dde>] system_call+0x7e/0x83 Code: 0f 0b eb fe f0 ff 41 44 c7 85 18 01 00 00 01 00 00 00 48 8b RIP [<ffffffff8032fb83>] nfs_wait_on_requests_locked+0x43/0xb2 RSP <ffff81007d669ca8> The nfsroot contains a debootstraped version of debian 3.1 amd64. My hardware: a MSI Barebone system -> http://www.msi-computer.de/produkte/bare_idx_view.php?Prod_id=515 processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Pentium(R) 4 CPU 3.06GHz stepping : 9 cpu MHz : 3059.077 cache size : 1024 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 1 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl tm2 cid cx16 xtpr lahf_lm bogomips : 6123.63 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Pentium(R) 4 CPU 3.06GHz stepping : 9 cpu MHz : 3059.077 cache size : 1024 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 1 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl tm2 cid cx16 xtpr lahf_lm bogomips : 6118.50 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management: 0000:00:00.0 Host bridge: Intel Corporation 82915G/P/GV/GL/PL/910GL Memory Controller Hub (rev 0e) 0000:00:02.0 VGA compatible controller: Intel Corporation 82915G/GV/910GL Integrated Graphics Controller (rev 0e) 0000:00:1d.0 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1 (rev 04) 0000:00:1d.1 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #2 (rev 04) 0000:00:1d.2 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #3 (rev 04) 0000:00:1d.3 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #4 (rev 04) 0000:00:1d.7 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB2 EHCI Controller (rev 04) 0000:00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev d4) 0000:00:1f.0 ISA bridge: Intel Corporation 82801FB/FR (ICH6/ICH6R) LPC Interface Bridge (rev 04) 0000:00:1f.1 IDE interface: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) IDE Controller (rev 04) 0000:00:1f.2 IDE interface: Intel Corporation 82801FB/FW (ICH6/ICH6W) SATA Controller (rev 04) 0000:00:1f.3 SMBus: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) SMBus Controller (rev 04) 0000:02:06.0 Ethernet controller: Intel Corporation 82541GI Gigabit Ethernet Controller (rev 05) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/