Date: Thu, 25 Sep 2014 21:18:03 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 192324] [uefi] 2014-07-14 11.0-CURRENT snapshot doesn't boot Message-ID: <bug-192324-8-uNOpMwHwKV@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-192324-8@https.bugs.freebsd.org/bugzilla/> References: <bug-192324-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192324 --- Comment #3 from Matt Smith <mgsmith@netgate.com> --- I attempted to debug it a little further. I added debugging statements around the code where the last messages get printed: Index: sys/boot/amd64/efi/copy.c =================================================================== --- sys/boot/amd64/efi/copy.c (revision 272035) +++ sys/boot/amd64/efi/copy.c (working copy) @@ -91,6 +91,7 @@ void x86_efi_copy_finish(void) { + printf("BEGIN %s\n", __func__); uint64_t *src, *dst, *last; src = (uint64_t *)staging; @@ -99,4 +100,5 @@ while (src < last) *dst++ = *src++; + printf("END %s\n", __func__); } Index: sys/boot/amd64/efi/elf64_freebsd.c =================================================================== --- sys/boot/amd64/efi/elf64_freebsd.c (revision 272035) +++ sys/boot/amd64/efi/elf64_freebsd.c (working copy) @@ -167,8 +167,10 @@ err = bi_load(fp->f_args, &modulep, &kernend); if (err != 0) return(err); + printf("after bi_load\n"); status = BS->ExitBootServices(IH, x86_efi_mapkey); + printf("after ExitBootServices\n"); if (EFI_ERROR(status)) { printf("%s: ExitBootServices() returned 0x%lx\n", __func__, (long)status); @@ -176,9 +178,13 @@ } dev_cleanup(); + printf("after dev_cleanup\n"); + printf("kernend is %u, modulep is %u, PT4 is %u, ehdr->e_entry is %u\n", + kernend, modulep, PT4, ehdr->e_entry); trampoline(trampstack, x86_efi_copy_finish, kernend, modulep, PT4, ehdr->e_entry); + printf("after trampoline\n"); panic("exec returned"); } Here's the output: Loading /boot/defaults/loader.conf /boot/kernel/kernel text=0xfd1f00 data=0x12a530+0x608630 syms=[0x8+0x142c80+0x8+0x15dc80] Hit [Enter] to boot immediately, or any other key for command prompt. Type '?' for a list of commands, 'help' for more detailed help. OK set kern.vty=vt OK set comconsole_speed=115200 OK set console=comconsole OK set hw.textmode=1 OK boot -v Booting... Start @ 0xffffffff802dd000 ... EFI framebuffer information: addr, size 0x80000000, 0x7e9000 dimensions 1920 x 1080 stride 1920 masks 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000 after bi_load after ExitBootServices after dev_cleanup kernend is 31100928, modulep is 31092736, PT4 is 1073725440, ehdr->e_entry is 2150486016 BEGIN x86_efi_copy_finish END x86_efi_copy_finish After that, there is no further output. So the trampoline call is invoked and runs at least to the point where it invokes x68_efi_copy_finish. I'm not too familiar with assembly code & hardware registers so I can't tell anything beyond that. -- You are receiving this mail because: You are the assignee for the bug.
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