From: Russell King <rmk@arm.linux.org.uk>
To: Linux Kernel List <linux-kernel@vger.kernel.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Subject: bad: scheduling while atomic! (Part Deux)
Date: Sun, 15 Jun 2003 16:07:29 +0100 [thread overview]
Message-ID: <20030615160729.A5417@flint.arm.linux.org.uk> (raw)
Sigh. Another MTD deadlock, and cause of scheduling badness on UP preempt.
David, I think MTD needs an audit to ensure that no further cases exist.
static void cfi_intelext_sync (struct mtd_info *mtd)
{
for (i=0; !ret && i<cfi->numchips; i++) {
chip = &cfi->chips[i];
spin_lock(chip->mutex);
ret = get_chip(map, chip, chip->start, FL_SYNCING);
...
}
/* Unlock the chips again */
for (i--; i >=0; i--) {
chip = &cfi->chips[i];
spin_lock(chip->mutex);
...
spin_unlock(chip->mutex);
}
}
--
Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux
http://www.arm.linux.org.uk/personal/aboutme.html
next reply other threads:[~2003-06-15 14:53 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-15 15:07 Russell King [this message]
2003-06-15 15:42 ` Jörn Engel
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