From: Tachino Nobuhiro <tachino@open.nm.fujitsu.co.jp>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: linux-kernel@vger.kernel.org
Subject: [BUG] vmalloc_area_pages() in 2.4.2-ac25
Date: Mon, 26 Mar 2001 20:30:16 +0900 [thread overview]
Message-ID: <3dc0ojhz.wl@frostrubin.open.nm.fujitsu.co.jp> (raw)
In-Reply-To: <E14hQaE-0001AK-00@the-village.bc.nu>
In-Reply-To: <E14hQaE-0001AK-00@the-village.bc.nu>
vmalloc_area_pages() in 2.4.2-ac25 seems to be broken. It calls
spin_lock(&init_mm.page_table_lock) twice and causes system hang.
inline int vmalloc_area_pages (unsigned long address, unsigned long size,
int gfp_mask, pgprot_t prot)
{
pgd_t * dir;
unsigned long end = address + size;
int ret;
dir = pgd_offset_k(address);
flush_cache_all();
>>>> spin_lock(&init_mm.page_table_lock);
do {
pmd_t *pmd;
>>>> spin_lock(&init_mm.page_table_lock); /* pmd_alloc requires this */
pmd = pmd_alloc(&init_mm, dir, address);
spin_unlock(&init_mm.page_table_lock);
ret = -ENOMEM;
next prev parent reply other threads:[~2001-03-26 11:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-26 6:34 Linux 2.4.2ac25 Alan Cox
2001-03-26 9:47 ` ac25 - hang mounting swap J . A . Magallon
2001-03-26 14:52 ` Alan Cox
2001-03-26 17:13 ` J . A . Magallon
2001-03-26 11:30 ` Tachino Nobuhiro [this message]
2001-03-26 12:23 ` [BUG] vmalloc_area_pages() in 2.4.2-ac25 Andrew Morton
2001-03-26 12:52 ` Andrew Morton
2001-03-26 16:42 ` Linux 2.4.2ac25 Ivan Kokshaysky
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