When I use an initrd, sometimes when warm-booting I get an "Unable to handle kernel NULL pointer dereference" OOPS just after the "Trying to unmount old root ..." message. I ran gdb on vmlinux and got the following stack trace: 0xc0180516 <rd_ioctl+118>: mov 0x10(%eax),%eax 0xc0137c37 <ioctl_by_bdev+135>: mov %edi,0xc(%ebx) 0xc01861a0 <start_request+384>: add $0xc,%esp 0xc01864d3 <ide_do_request+659>: mov %eax,%ebx 0xc0112949 <schedule+617>: pop %ebp 0xc0132be1 <__refile_buffer+97>: pop %ecx 0xc018047a <rd_make_request+266>: xor %eax,%eax 0xc01347eb <try_to_free_buffers+267>: mov $0x1,%eax 0xc0133062 <block_flushpage+114>: test %eax,%eax 0xc0123905 <truncate_list_pages+357>: mov $0x1,%eax 0xc01431af <destroy_inode+47>: pop %eax 0xc01447b0 <iput+320>: pop %ecx 0xc0137e46 <blkdev_put+118>: add $0xc,%esp 0xc0135edc <kill_super+236>: add $0xc,%esp 0xc0105000 <do_linuxrc>: push %edi 0xc0117ba3 <sys_waitpid+19>: add $0x10,%esp 0xc0105000 <do_linuxrc>: push %edi 0xc01051e8 <prepare_namespace+264>: pop %edx 0xc010520e <init+14>: call 0xc0111a60 <free_initmem> 0xc0105000 <do_linuxrc>: push %edi 0xc01056c6 <kernel_thread+38>: mov $0x1,%eax 0xc0105200 <init>: push %ebp A reset at this point usually (but not always) succeeds in booting, and once the machine succeeds in booting it is completely stable (for my admittedly low load). Hardware is an Athlon Tbird 900MHz (not overclocked) on an MSI K7T Turbo-R motherboard. I've worked around this by building my SCSI driver into the kernel and removing the need for an initrd. Kernel is official 2.4.5 built with Athlon optimizations. -- Manuel A. McLure - Unify Corp. Technical Support <[EMAIL PROTECTED]> Zathras is used to being beast of burden to other peoples needs. Very sad life. Probably have very sad death, but at least there is symmetry. - 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/
