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SubjectRe: [linux-usb-devel] [usb-storage] schedule_timeout: wrong timeout value c1a95554
Date
On Thursday, 9 August 2007 17:20, Mariusz Kozlowski wrote:
> > > > Happens every time I reattach usb pen drive.
> > > >
> > > > usb 1-2: new high speed USB device using ehci_hcd and address 10
> > > > usb 1-2: configuration #1 chosen from 1 choice
> > > > scsi6 : SCSI emulation for USB Mass Storage devices
> > > > usb 1-2: new device found, idVendor=13fe, idProduct=1a00
> > > > usb 1-2: new device strings: Mfr=1, Product=2, SerialNumber=0
> > > > usb 1-2: Product: GEIL USB DISK
> > > > usb 1-2: Manufacturer:
> > > > usb-storage: device found at 10
> > > > usb-storage: waiting for device to settle before scanning
> > > > schedule_timeout: wrong timeout value c1a95554
> > > > [<c010456a>] show_trace_log_lvl+0x1a/0x30
> > > > [<c010508d>] show_trace+0x12/0x14
> > > > [<c01051e0>] dump_stack+0x15/0x17
> > > > [<c04174d1>] schedule_timeout+0x8c/0xa2
> > > > [<c032aeec>] usb_stor_scan_thread+0x100/0x160
> > > > [<c0127f2e>] kthread+0x36/0x58
> > > > [<c0104233>] kernel_thread_helper+0x7/0x14
> > > > =======================
> > > > scsi 6:0:0:0: Direct-Access GEIL USB DISK >2.0 PQ: 0 ANSI: 0 CCS
> > > > sd 6:0:0:0: [sda] 1007616 512-byte hardware sectors (516 MB)
> > > > sd 6:0:0:0: [sda] Write Protect is off
> > > > sd 6:0:0:0: [sda] Mode Sense: 23 00 00 00
> > > > sd 6:0:0:0: [sda] Assuming drive cache: write through
> > > > sd 6:0:0:0: [sda] 1007616 512-byte hardware sectors (516 MB)
> > > > sd 6:0:0:0: [sda] Write Protect is off
> > > > sd 6:0:0:0: [sda] Mode Sense: 23 00 00 00
> > > > sd 6:0:0:0: [sda] Assuming drive cache: write through
> > > > sda: sda1
> > > > sd 6:0:0:0: [sda] Attached SCSI removable disk
> > > > sd 6:0:0:0: Attached scsi generic sg0 type 0
> > > > usb-storage: device scan complete
> > >
> > > This is a known problem. See
> > >
> > > http://marc.info/?l=linux-kernel&m=118641424414399&w=2
> > >
> > > Rafael, has this been fixed yet?
> >
> > No, I wasn't aware of it.
> >
> > I think that something like the appended patch is necessary.
> >
> > Mariusz, please see if that helps.
>
> Yes - this patch fixes the bug.

OK, thanks for the confirmation.

Here it goes again with a changelog etc.

---
From: Rafael J. Wysocki <rjw@sisk.pl>

Fix a bug in freezer-introduce-freezer-firendly-waiting-macros.patch which
uses a wrong variable name in wait_event_freezable() and
wait_event_freezable_timeout() (this name is also used in
wait_event_interruptible() and wait_event_interruptible_timeout() which are
macros and the names clash).

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
---
include/linux/freezer.h | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)

Index: linux-2.6.23-rc2/include/linux/freezer.h
===================================================================
--- linux-2.6.23-rc2.orig/include/linux/freezer.h
+++ linux-2.6.23-rc2/include/linux/freezer.h
@@ -134,28 +134,28 @@ static inline void set_freezable(void)

#define wait_event_freezable(wq, condition) \
({ \
- int __ret; \
+ int __retval; \
do { \
- __ret = wait_event_interruptible(wq, \
+ __retval = wait_event_interruptible(wq, \
(condition) || freezing(current)); \
- if (__ret && !freezing(current)) \
+ if (__retval && !freezing(current)) \
break; \
else if (!(condition)) \
- __ret = -ERESTARTSYS; \
+ __retval = -ERESTARTSYS; \
} while (try_to_freeze()); \
- __ret; \
+ __retval; \
})


#define wait_event_freezable_timeout(wq, condition, timeout) \
({ \
- long __ret = timeout; \
+ long __retval = timeout; \
do { \
- __ret = wait_event_interruptible_timeout(wq, \
+ __retval = wait_event_interruptible_timeout(wq, \
(condition) || freezing(current), \
- __ret); \
+ __retval); \
} while (try_to_freeze()); \
- __ret; \
+ __retval; \
})
#else /* !CONFIG_PM_SLEEP */
static inline int frozen(struct task_struct *p) { return 0; }
-
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