Re: Linux 2.6.22.7 Machine Check Exception
On Thu, 25 Oct 2007 12:40:58 +0200 Michael Stiller <[EMAIL PROTECTED]> wrote: > Hi, > > i encountered the following machine check exceptions (and hangs) with > 2.6.22.7 on an Dual Core-2 Xeon System. It occurs if i try to use the > PCI-X Intel Gigabit Ethernet card after some minutes: > > CPU 3: Machine Check Exception 0005 > Bank 0: b2401400 > Bank 5: b20012102400 > > or > > CPU 1: Machine Check Exception 0005 > Bank 0: b2401400 > Bank 5: b20012102400 > > What is the cause? How can this be debugged? > I guess it means your hardware is sick. Presumably those two numbers were supposed to be the same. I assume this is the same machine as in your "2.6.22.7 reboots if PCI-X eth card is used for capture" report? - 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/
Re: Linux 2.6.22.7 Machine Check Exception
On Thu, 25 Oct 2007 12:40:58 +0200 Michael Stiller [EMAIL PROTECTED] wrote: Hi, i encountered the following machine check exceptions (and hangs) with 2.6.22.7 on an Dual Core-2 Xeon System. It occurs if i try to use the PCI-X Intel Gigabit Ethernet card after some minutes: CPU 3: Machine Check Exception 0005 Bank 0: b2401400 Bank 5: b20012102400 or CPU 1: Machine Check Exception 0005 Bank 0: b2401400 Bank 5: b20012102400 What is the cause? How can this be debugged? I guess it means your hardware is sick. Presumably those two numbers were supposed to be the same. I assume this is the same machine as in your 2.6.22.7 reboots if PCI-X eth card is used for capture report? - 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/
Linux 2.6.22.7 Machine Check Exception
Hi, i encountered the following machine check exceptions (and hangs) with 2.6.22.7 on an Dual Core-2 Xeon System. It occurs if i try to use the PCI-X Intel Gigabit Ethernet card after some minutes: CPU 3: Machine Check Exception 0005 Bank 0: b2401400 Bank 5: b20012102400 or CPU 1: Machine Check Exception 0005 Bank 0: b2401400 Bank 5: b20012102400 What is the cause? How can this be debugged? Cheers, -Michael - 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/
Linux 2.6.22.7 Machine Check Exception
Hi, i encountered the following machine check exceptions (and hangs) with 2.6.22.7 on an Dual Core-2 Xeon System. It occurs if i try to use the PCI-X Intel Gigabit Ethernet card after some minutes: CPU 3: Machine Check Exception 0005 Bank 0: b2401400 Bank 5: b20012102400 or CPU 1: Machine Check Exception 0005 Bank 0: b2401400 Bank 5: b20012102400 What is the cause? How can this be debugged? Cheers, -Michael - 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/
Re: Linux 2.6.22.7
diff --git a/Makefile b/Makefile
index 3067f6a..12edea0 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 22
-EXTRAVERSION = .6
+EXTRAVERSION = .7
NAME = Holy Dancing Manatees, Batman!
# *DOCUMENTATION*
diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S
index 47565c3..0bc623a 100644
--- a/arch/x86_64/ia32/ia32entry.S
+++ b/arch/x86_64/ia32/ia32entry.S
@@ -38,6 +38,18 @@
movq%rax,R8(%rsp)
.endm
+ .macro LOAD_ARGS32 offset
+ movl \offset(%rsp),%r11d
+ movl \offset+8(%rsp),%r10d
+ movl \offset+16(%rsp),%r9d
+ movl \offset+24(%rsp),%r8d
+ movl \offset+40(%rsp),%ecx
+ movl \offset+48(%rsp),%edx
+ movl \offset+56(%rsp),%esi
+ movl \offset+64(%rsp),%edi
+ movl \offset+72(%rsp),%eax
+ .endm
+
.macro CFI_STARTPROC32 simple
CFI_STARTPROC \simple
CFI_UNDEFINED r8
@@ -152,7 +164,7 @@ sysenter_tracesys:
movq$-ENOSYS,RAX(%rsp) /* really needed? */
movq%rsp,%rdi/* _regs -> arg1 */
callsyscall_trace_enter
- LOAD_ARGS ARGOFFSET /* reload args from stack in case ptrace changed
it */
+ LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed
it */
RESTORE_REST
movl%ebp, %ebp
/* no need to do an access_ok check here because rbp has been
@@ -255,7 +267,7 @@ cstar_tracesys:
movq $-ENOSYS,RAX(%rsp) /* really needed? */
movq %rsp,%rdi/* _regs -> arg1 */
call syscall_trace_enter
- LOAD_ARGS ARGOFFSET /* reload args from stack in case ptrace changed
it */
+ LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed
it */
RESTORE_REST
movl RSP-ARGOFFSET(%rsp), %r8d
/* no need to do an access_ok check here because r8 has been
@@ -333,7 +345,7 @@ ia32_tracesys:
movq $-ENOSYS,RAX(%rsp) /* really needed? */
movq %rsp,%rdi/* _regs -> arg1 */
call syscall_trace_enter
- LOAD_ARGS ARGOFFSET /* reload args from stack in case ptrace changed
it */
+ LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed
it */
RESTORE_REST
jmp ia32_do_syscall
END(ia32_syscall)
diff --git a/arch/x86_64/kernel/ptrace.c b/arch/x86_64/kernel/ptrace.c
index 9409117..8d89d8c 100644
--- a/arch/x86_64/kernel/ptrace.c
+++ b/arch/x86_64/kernel/ptrace.c
@@ -223,10 +223,6 @@ static int putreg(struct task_struct *child,
{
unsigned long tmp;
- /* Some code in the 64bit emulation may not be 64bit clean.
- Don't take any chances. */
- if (test_tsk_thread_flag(child, TIF_IA32))
- value &= 0x;
switch (regno) {
case offsetof(struct user_regs_struct,fs):
if (value && (value & 3) != 3)
-
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Linux 2.6.22.7
We (the -stable team) are announcing the release of the 2.6.22.7 kernel. It contains a single security bugfix for the x86_64 architecture. There is potential for local privilege escalation, so all x86_64 users are certainly encouraged to upgrade. CVE-2007-4573: x86_64: Zero extend all registers after ptrace in 32bit entry path. I'll also be replying to this message with a copy of the patch between 2.6.22.6 and 2.6.22.7 The updated 2.6.22.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-2.6.22.y.git and can be browsed at the normal kernel.org git web browser: http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.22.y.git;a=summary thanks, -chris Makefile |2 +- arch/x86_64/ia32/ia32entry.S | 18 +++--- arch/x86_64/kernel/ptrace.c |4 3 files changed, 16 insertions(+), 8 deletions(-) Summary of changes from v2.6.22.6 to v2.6.22.7 == Andi Kleen (1): x86_64: Zero extend all registers after ptrace in 32bit entry path. Chris Wright (1): Linux 2.6.22.7 - 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/
Linux 2.6.22.7
We (the -stable team) are announcing the release of the 2.6.22.7 kernel. It contains a single security bugfix for the x86_64 architecture. There is potential for local privilege escalation, so all x86_64 users are certainly encouraged to upgrade. CVE-2007-4573: x86_64: Zero extend all registers after ptrace in 32bit entry path. I'll also be replying to this message with a copy of the patch between 2.6.22.6 and 2.6.22.7 The updated 2.6.22.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-2.6.22.y.git and can be browsed at the normal kernel.org git web browser: http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.22.y.git;a=summary thanks, -chris Makefile |2 +- arch/x86_64/ia32/ia32entry.S | 18 +++--- arch/x86_64/kernel/ptrace.c |4 3 files changed, 16 insertions(+), 8 deletions(-) Summary of changes from v2.6.22.6 to v2.6.22.7 == Andi Kleen (1): x86_64: Zero extend all registers after ptrace in 32bit entry path. Chris Wright (1): Linux 2.6.22.7 - 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/
Re: Linux 2.6.22.7
diff --git a/Makefile b/Makefile
index 3067f6a..12edea0 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 22
-EXTRAVERSION = .6
+EXTRAVERSION = .7
NAME = Holy Dancing Manatees, Batman!
# *DOCUMENTATION*
diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S
index 47565c3..0bc623a 100644
--- a/arch/x86_64/ia32/ia32entry.S
+++ b/arch/x86_64/ia32/ia32entry.S
@@ -38,6 +38,18 @@
movq%rax,R8(%rsp)
.endm
+ .macro LOAD_ARGS32 offset
+ movl \offset(%rsp),%r11d
+ movl \offset+8(%rsp),%r10d
+ movl \offset+16(%rsp),%r9d
+ movl \offset+24(%rsp),%r8d
+ movl \offset+40(%rsp),%ecx
+ movl \offset+48(%rsp),%edx
+ movl \offset+56(%rsp),%esi
+ movl \offset+64(%rsp),%edi
+ movl \offset+72(%rsp),%eax
+ .endm
+
.macro CFI_STARTPROC32 simple
CFI_STARTPROC \simple
CFI_UNDEFINED r8
@@ -152,7 +164,7 @@ sysenter_tracesys:
movq$-ENOSYS,RAX(%rsp) /* really needed? */
movq%rsp,%rdi/* pt_regs - arg1 */
callsyscall_trace_enter
- LOAD_ARGS ARGOFFSET /* reload args from stack in case ptrace changed
it */
+ LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed
it */
RESTORE_REST
movl%ebp, %ebp
/* no need to do an access_ok check here because rbp has been
@@ -255,7 +267,7 @@ cstar_tracesys:
movq $-ENOSYS,RAX(%rsp) /* really needed? */
movq %rsp,%rdi/* pt_regs - arg1 */
call syscall_trace_enter
- LOAD_ARGS ARGOFFSET /* reload args from stack in case ptrace changed
it */
+ LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed
it */
RESTORE_REST
movl RSP-ARGOFFSET(%rsp), %r8d
/* no need to do an access_ok check here because r8 has been
@@ -333,7 +345,7 @@ ia32_tracesys:
movq $-ENOSYS,RAX(%rsp) /* really needed? */
movq %rsp,%rdi/* pt_regs - arg1 */
call syscall_trace_enter
- LOAD_ARGS ARGOFFSET /* reload args from stack in case ptrace changed
it */
+ LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed
it */
RESTORE_REST
jmp ia32_do_syscall
END(ia32_syscall)
diff --git a/arch/x86_64/kernel/ptrace.c b/arch/x86_64/kernel/ptrace.c
index 9409117..8d89d8c 100644
--- a/arch/x86_64/kernel/ptrace.c
+++ b/arch/x86_64/kernel/ptrace.c
@@ -223,10 +223,6 @@ static int putreg(struct task_struct *child,
{
unsigned long tmp;
- /* Some code in the 64bit emulation may not be 64bit clean.
- Don't take any chances. */
- if (test_tsk_thread_flag(child, TIF_IA32))
- value = 0x;
switch (regno) {
case offsetof(struct user_regs_struct,fs):
if (value (value 3) != 3)
-
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the body of a message to [EMAIL PROTECTED]
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Please read the FAQ at http://www.tux.org/lkml/
