The patch titled
i386: extra checks in show_registers()
has been added to the -mm tree. Its filename is
i386-extra-checks-in-show_registers.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: i386: extra checks in show_registers()
From: Chuck Ebbert <76306.1226@xxxxxxxxxxxxxx>
Sometimes thread_info and task_struct get out-of-sync with each other.
Printing task.thread_info in show_registers() can help spot this. And when
task_struct is corrupt then task.comm can contain garbage, so only print as
many characters as it can hold.
Signed-off-by: Chuck Ebbert <76306.1226@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
arch/i386/kernel/traps.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff -puN arch/i386/kernel/traps.c~i386-extra-checks-in-show_registers arch/i386/kernel/traps.c
--- a/arch/i386/kernel/traps.c~i386-extra-checks-in-show_registers
+++ a/arch/i386/kernel/traps.c
@@ -312,8 +312,9 @@ void show_registers(struct pt_regs *regs
regs->esi, regs->edi, regs->ebp, esp);
printk(KERN_EMERG "ds: %04x es: %04x ss: %04x\n",
regs->xds & 0xffff, regs->xes & 0xffff, ss);
- printk(KERN_EMERG "Process %s (pid: %d, threadinfo=%p task=%p)",
- current->comm, current->pid, current_thread_info(), current);
+ printk(KERN_EMERG "Process %.*s (pid: %d, ti=%p task=%p task.ti=%p)",
+ TASK_COMM_LEN, current->comm, current->pid,
+ current_thread_info(), current, current->thread_info);
/*
* When in-kernel, we also print out the stack and code at the
* time of the fault..
_
Patches currently in -mm which might be from 76306.1226@xxxxxxxxxxxxxx are
i386-let-usermode-execute-the-enter.patch
i386-fix-get_segment_eip-with-vm86.patch
i386-dont-try-kprobes-for-v8086-mode.patch
i386-print-stack-size-in-oops-messages.patch
i386-use-c-code-for-current_thread_info.patch
i386-extra-checks-in-show_registers.patch
-
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