From: "Chen, Kenneth W" <kenneth.w.chen@intel.com>
To: linux-kernel@vger.kernel.org
Subject: free_task_struct() called too early?
Date: Fri, 10 Aug 2001 11:13:53 -0700 [thread overview]
Message-ID: <794826DE8867D411BAB8009027AE9EB91011431F@FMSMSX38> (raw)
When a process terminates, it appears that the task structure is freed too
early. There are memory references to the kernel task area (task_struct and
stack space) after free_task_struct(p) is called.
If I modify the following line in include/asm-i386/processor.h
#define free_task_struct(p) free_pages((unsigned long) (p), 1) to
#define free_task_struct(p) memset((void*) (p), 0xf, PAGE_SIZE*2);
free_pages((unsigned long) (p), 1)
then kernel will boot to init and lockup on when first task terminates.
Has anyone looked into or aware of this issue?
next reply other threads:[~2001-08-10 18:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-08-10 18:13 Chen, Kenneth W [this message]
2001-08-10 18:57 ` Andrew Morton
[not found] <no.id>
2001-08-10 22:43 ` Alan Cox
2001-08-10 22:57 ` Linus Torvalds
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