Bug 182740
| Summary: | BTX halted on Jetway NF81 motherboard when RAID is enabled | ||
|---|---|---|---|
| Product: | Base System | Reporter: | Julian Pidancet <julian.pidancet> |
| Component: | amd64 | Assignee: | John Baldwin <jhb> |
| Status: | Closed FIXED | ||
| Severity: | Affects Only Me | ||
| Priority: | Normal | ||
| Version: | Unspecified | ||
| Hardware: | Any | ||
| OS: | Any | ||
On Sunday, October 06, 2013 7:28:31 am Julian Pidancet wrote: > > >Number: 182740 > >Category: amd64 > >Synopsis: BTX halted on Jetway NF81 motherboard when RAID is enabled > >Confidential: no > >Severity: non-critical > >Priority: low > >Responsible: freebsd-amd64 > >State: open > >Quarter: > >Keywords: > >Date-Required: > >Class: sw-bug > >Submitter-Id: current-users > >Arrival-Date: Sun Oct 06 11:30:00 UTC 2013 > >Closed-Date: > >Last-Modified: > >Originator: Julian Pidancet > >Release: 8.2 > >Organization: > >Environment: > >Description: > Just got this brand new motherboard with an AMD APU and an AMD chipset. > > Whenever I try to boot FreeBSD and AHCI or RAID is enabled in the BIOS, I am getting this message: > > BTX loader 1.00 BTX version is 1.02 > int=0000000a err=00000000 efl=00006402 eip=000093e0 > eax=534d4150 ebx=00000001 ecx=00000014 edx=534d4150 > esi=00000000 edi=00000004 ebp=00000000 esp=0000004e > cs=0008 ds=0033 es=0033 fs=0033 gs=0033 ss=0010 > cs:eip=cf 83 f8 01 75 1a 16 87-86 1f 1e 0f a1 0f a0 0f > a9 b8 00 a0 00 00 03 44-24 0c 8d 60 04 58 ff d0 > ss:esp=00 f0 39 e7 00 f0 e3 21-80 ce 2e e8 00 f0 d2 ef > 00 f0 00 e0 00 f0 f2 e6-00 f0 6e fe 00 f0 53 ff > BTX halted > > It looks like to me the BTX is taking an "Invalid TSS" exception while executing an iret instruction. > >How-To-Repeat: > I tried: - Booting from the install cdrom > - Booting from an USB install disk > - Booting from boot/pxeboot in PXE mode > > All exhibit the same issue. > >Fix: > Selecting "Legacy IDE" mode in the BIOS configuration instead of AHCI/RAID. Ok, can you take this patch and use it to build an updated pxeboot and test if it fixes disk access with AHCI enabled? Index: boot/i386/btx/btx/btx.S =================================================================== --- boot/i386/btx/btx/btx.S (revision 247010) +++ boot/i386/btx/btx/btx.S (working copy) @@ -41,6 +41,8 @@ .set PSL_RESERVED_DEFAULT,0x00000002 .set PSL_T,0x00000100 # Trap flag .set PSL_I,0x00000200 # Interrupt enable flag + .set PSL_D,0x00000400 # String instruction direction + .set PSL_NT,0x00004000 # Nested task flag .set PSL_VM,0x00020000 # Virtual 8086 mode flag .set PSL_AC,0x00040000 # Alignment check flag /* @@ -611,8 +613,8 @@ pushl %ds # regs pushl %es pushfl # Save %eflags - cli # Disable interrupts - std # String ops dec + pushl $PSL_RESERVED_DEFAULT|PSL_D # Use clean %eflags with + popfl # string ops dec xorw %ax,%ax # Reset seg movw %ax,%ds # regs movw %ax,%es # (%ss is already 0) @@ -675,6 +677,7 @@ testl $V86F_FLAGS,%edx # User wants flags? jz rret_tramp.3 # No movl MEM_ESPR-0x3c,%eax # Read real mode flags + andl $~(PSL_T|PSL_NT),%eax # Clear unsafe flags movw %ax,-0x08(%esi) # Update user flags (low 16) /* * Return to the user task -- John Baldwin On 7 October 2013 16:47, John Baldwin <jhb@freebsd.org> wrote: > > Ok, can you take this patch and use it to build an updated pxeboot and test > if it fixes disk access with AHCI enabled? > > That seems to have fixed the issue, thanks. -- Julian On Wednesday, October 09, 2013 5:21:05 am Julian Pidancet wrote: > On 7 October 2013 16:47, John Baldwin <jhb@freebsd.org> wrote: > > > > > Ok, can you take this patch and use it to build an updated pxeboot and test > > if it fixes disk access with AHCI enabled? > > > > > > That seems to have fixed the issue, thanks. Great, thanks! -- John Baldwin Author: jhb Date: Thu Oct 10 19:51:38 2013 New Revision: 256293 URL: http://svnweb.freebsd.org/changeset/base/256293 Log: Sanitize the %eflags returned by BIOS routines. Some BIOS routines enter protected mode and may leave protected-mode-specific flags like PSL_NT set when they return to real mode. This can cause a fault when BTX re-enters protected mode after the BIOS mode returns. PR: amd64/182740 Reported by: Julian Pidancet <julian.pidancet@gmail.com> Approved by: re (gjb) MFC after: 1 week Modified: head/sys/boot/i386/btx/btx/btx.S Modified: head/sys/boot/i386/btx/btx/btx.S ============================================================================== --- head/sys/boot/i386/btx/btx/btx.S Thu Oct 10 19:48:43 2013 (r256292) +++ head/sys/boot/i386/btx/btx/btx.S Thu Oct 10 19:51:38 2013 (r256293) @@ -41,6 +41,8 @@ .set PSL_RESERVED_DEFAULT,0x00000002 .set PSL_T,0x00000100 # Trap flag .set PSL_I,0x00000200 # Interrupt enable flag + .set PSL_D,0x00000400 # String instruction direction + .set PSL_NT,0x00004000 # Nested task flag .set PSL_VM,0x00020000 # Virtual 8086 mode flag .set PSL_AC,0x00040000 # Alignment check flag /* @@ -611,8 +613,8 @@ rret_tramp: movw $MEM_ESPR-0x08,%sp # R pushl %ds # regs pushl %es pushfl # Save %eflags - cli # Disable interrupts - std # String ops dec + pushl $PSL_RESERVED_DEFAULT|PSL_D # Use clean %eflags with + popfl # string ops dec xorw %ax,%ax # Reset seg movw %ax,%ds # regs movw %ax,%es # (%ss is already 0) @@ -675,6 +677,7 @@ rret_tramp.1: xorl %ecx,%ecx # Zero testl $V86F_FLAGS,%edx # User wants flags? jz rret_tramp.3 # No movl MEM_ESPR-0x3c,%eax # Read real mode flags + andl $~(PSL_T|PSL_NT),%eax # Clear unsafe flags movw %ax,-0x08(%esi) # Update user flags (low 16) /* * Return to the user task _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscribe@freebsd.org" State Changed From-To: open->patched Fix committed to HEAD. Responsible Changed From-To: freebsd-amd64->jhb Fix committed to HEAD. Author: jhb Date: Fri Nov 15 15:08:53 2013 New Revision: 258171 URL: http://svnweb.freebsd.org/changeset/base/258171 Log: MFC 256293: Sanitize the %eflags returned by BIOS routines. Some BIOS routines enter protected mode and may leave protected-mode-specific flags like PSL_NT set when they return to real mode. This can cause a fault when BTX re-enters protected mode after the BIOS mode returns. PR: amd64/182740 Modified: stable/9/sys/boot/i386/btx/btx/btx.S Directory Properties: stable/9/sys/ (props changed) stable/9/sys/boot/ (props changed) Modified: stable/9/sys/boot/i386/btx/btx/btx.S ============================================================================== --- stable/9/sys/boot/i386/btx/btx/btx.S Fri Nov 15 13:55:55 2013 (r258170) +++ stable/9/sys/boot/i386/btx/btx/btx.S Fri Nov 15 15:08:53 2013 (r258171) @@ -41,6 +41,8 @@ .set PSL_RESERVED_DEFAULT,0x00000002 .set PSL_T,0x00000100 # Trap flag .set PSL_I,0x00000200 # Interrupt enable flag + .set PSL_D,0x00000400 # String instruction direction + .set PSL_NT,0x00004000 # Nested task flag .set PSL_VM,0x00020000 # Virtual 8086 mode flag .set PSL_AC,0x00040000 # Alignment check flag /* @@ -611,8 +613,8 @@ rret_tramp: movw $MEM_ESPR-0x08,%sp # R pushl %ds # regs pushl %es pushfl # Save %eflags - cli # Disable interrupts - std # String ops dec + pushl $PSL_RESERVED_DEFAULT|PSL_D # Use clean %eflags with + popfl # string ops dec xorw %ax,%ax # Reset seg movw %ax,%ds # regs movw %ax,%es # (%ss is already 0) @@ -675,6 +677,7 @@ rret_tramp.1: xorl %ecx,%ecx # Zero testl $V86F_FLAGS,%edx # User wants flags? jz rret_tramp.3 # No movl MEM_ESPR-0x3c,%eax # Read real mode flags + andl $~(PSL_T|PSL_NT),%eax # Clear unsafe flags movw %ax,-0x08(%esi) # Update user flags (low 16) /* * Return to the user task _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscribe@freebsd.org" State Changed From-To: patched->closed Fix merged to 8 and 9. Author: jhb Date: Fri Nov 15 15:08:58 2013 New Revision: 258172 URL: http://svnweb.freebsd.org/changeset/base/258172 Log: MFC 256293: Sanitize the %eflags returned by BIOS routines. Some BIOS routines enter protected mode and may leave protected-mode-specific flags like PSL_NT set when they return to real mode. This can cause a fault when BTX re-enters protected mode after the BIOS mode returns. PR: amd64/182740 Modified: stable/8/sys/boot/i386/btx/btx/btx.S Directory Properties: stable/8/sys/ (props changed) stable/8/sys/boot/ (props changed) Modified: stable/8/sys/boot/i386/btx/btx/btx.S ============================================================================== --- stable/8/sys/boot/i386/btx/btx/btx.S Fri Nov 15 15:08:53 2013 (r258171) +++ stable/8/sys/boot/i386/btx/btx/btx.S Fri Nov 15 15:08:58 2013 (r258172) @@ -41,6 +41,8 @@ .set PSL_RESERVED_DEFAULT,0x00000002 .set PSL_T,0x00000100 # Trap flag .set PSL_I,0x00000200 # Interrupt enable flag + .set PSL_D,0x00000400 # String instruction direction + .set PSL_NT,0x00004000 # Nested task flag .set PSL_VM,0x00020000 # Virtual 8086 mode flag .set PSL_AC,0x00040000 # Alignment check flag /* @@ -611,8 +613,8 @@ rret_tramp: movw $MEM_ESPR-0x08,%sp # R pushl %ds # regs pushl %es pushfl # Save %eflags - cli # Disable interrupts - std # String ops dec + pushl $PSL_RESERVED_DEFAULT|PSL_D # Use clean %eflags with + popfl # string ops dec xorw %ax,%ax # Reset seg movw %ax,%ds # regs movw %ax,%es # (%ss is already 0) @@ -675,6 +677,7 @@ rret_tramp.1: xorl %ecx,%ecx # Zero testl $V86F_FLAGS,%edx # User wants flags? jz rret_tramp.3 # No movl MEM_ESPR-0x3c,%eax # Read real mode flags + andl $~(PSL_T|PSL_NT),%eax # Clear unsafe flags movw %ax,-0x08(%esi) # Update user flags (low 16) /* * Return to the user task _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscribe@freebsd.org" |
Just got this brand new motherboard with an AMD APU and an AMD chipset. Whenever I try to boot FreeBSD and AHCI or RAID is enabled in the BIOS, I am getting this message: BTX loader 1.00 BTX version is 1.02 int=0000000a err=00000000 efl=00006402 eip=000093e0 eax=534d4150 ebx=00000001 ecx=00000014 edx=534d4150 esi=00000000 edi=00000004 ebp=00000000 esp=0000004e cs=0008 ds=0033 es=0033 fs=0033 gs=0033 ss=0010 cs:eip=cf 83 f8 01 75 1a 16 87-86 1f 1e 0f a1 0f a0 0f a9 b8 00 a0 00 00 03 44-24 0c 8d 60 04 58 ff d0 ss:esp=00 f0 39 e7 00 f0 e3 21-80 ce 2e e8 00 f0 d2 ef 00 f0 00 e0 00 f0 f2 e6-00 f0 6e fe 00 f0 53 ff BTX halted It looks like to me the BTX is taking an "Invalid TSS" exception while executing an iret instruction. Fix: Selecting "Legacy IDE" mode in the BIOS configuration instead of AHCI/RAID. How-To-Repeat: I tried: - Booting from the install cdrom - Booting from an USB install disk - Booting from boot/pxeboot in PXE mode All exhibit the same issue.