The latest GIT generates the following BUG.
BUG: sleeping function called from invalid context at mm/slab.c:3046
in_atomic(): 0, irqs_disabled(): 1, pid: 523, name: modprobe
no locks held by modprobe/523.
irq event stamp: 17802
hardirqs last enabled at (17801): [<ffffffff8045dd99>]
_spin_unlock_irqrestore+0x44/0x4c
hardirqs last disabled at (17802): [<ffffffffa00a4792>]
ide_probe_port+0x6c/0x469 [ide_core]
softirqs last enabled at (17796): [<ffffffff802431f3>]
__do_softirq+0x159/0x166
softirqs last disabled at (17789): [<ffffffff8020d4bc>]
call_softirq+0x1c/0x28
Pid: 523, comm: modprobe Not tainted 2.6.28-Linus-06858-g637b180 #31
Call Trace:
[<ffffffff8025dbdd>] ? print_irqtrace_events+0xd0/0xd4
[<ffffffff80236bcd>] __might_sleep+0xf9/0xfb
[<ffffffff802b5469>] kmem_cache_alloc+0x2d/0x142
[<ffffffffa00a489b>] ide_probe_port+0x175/0x469 [ide_core]
[<ffffffffa00a5750>] ide_host_register+0x2b8/0x611 [ide_core]
[<ffffffffa00a8526>] ? do_ide_setup_pci_device+0x70/0xd3 [ide_core]
[<ffffffffa00a8f1d>] ide_pci_init_one+0xcc/0xee [ide_core]
[<ffffffff8025e852>] ? trace_hardirqs_off+0xd/0xf
[<ffffffff8045dd92>] ? _spin_unlock_irqrestore+0x3d/0x4c
[<ffffffff8023e3ec>] ? release_console_sem+0x1b0/0x1e5
[<ffffffff8045aac8>] ? printk+0x41/0x49
[<ffffffffa00bf604>] amd74xx_probe+0x13e/0x145 [amd74xx]
[<ffffffffa00bf340>] ? init_chipset_amd74xx+0x0/0x160 [amd74xx]
[<ffffffffa00bf4a0>] ? init_hwif_amd74xx+0x0/0x26 [amd74xx]
[<ffffffff80345fb6>] pci_device_probe+0xc6/0x11d
[<ffffffff803b7f1d>] driver_probe_device+0xc3/0x168
[<ffffffff803b801f>] __driver_attach+0x5d/0x80
[<ffffffff803b7fc2>] ? __driver_attach+0x0/0x80
[<ffffffff803b7794>] bus_for_each_dev+0x59/0x90
[<ffffffff803b7d60>] driver_attach+0x21/0x23
[<ffffffff803b703b>] bus_add_driver+0xbf/0x20c
[<ffffffff803b822e>] driver_register+0xb0/0x130
[<ffffffff8034628d>] __pci_register_driver+0x68/0xa3
[<ffffffffa0023000>] ? amd74xx_ide_init+0x0/0x20 [amd74xx]
[<ffffffffa002301e>] amd74xx_ide_init+0x1e/0x20 [amd74xx]
[<ffffffff8020905b>] _stext+0x5b/0x135
[<ffffffff802561b0>] ? __blocking_notifier_call_chain+0x5d/0x6f
[<ffffffff8026af0c>] sys_init_module+0xb0/0x1d3
[<ffffffff8020c2cb>] system_call_fastpath+0x16/0x1b
On Wednesday 07 January 2009, Larry Finger wrote:
> The latest GIT generates the following BUG.
>
>
> BUG: sleeping function called from invalid context at mm/slab.c:3046
> in_atomic(): 0, irqs_disabled(): 1, pid: 523, name: modprobe
> no locks held by modprobe/523.
> irq event stamp: 17802
> hardirqs last enabled at (17801): [<ffffffff8045dd99>]
> _spin_unlock_irqrestore+0x44/0x4c
> hardirqs last disabled at (17802): [<ffffffffa00a4792>]
> ide_probe_port+0x6c/0x469 [ide_core]
> softirqs last enabled at (17796): [<ffffffff802431f3>]
> __do_softirq+0x159/0x166
> softirqs last disabled at (17789): [<ffffffff8020d4bc>]
> call_softirq+0x1c/0x28
> Pid: 523, comm: modprobe Not tainted 2.6.28-Linus-06858-g637b180 #31
> Call Trace:
> [<ffffffff8025dbdd>] ? print_irqtrace_events+0xd0/0xd4
> [<ffffffff80236bcd>] __might_sleep+0xf9/0xfb
> [<ffffffff802b5469>] kmem_cache_alloc+0x2d/0x142
> [<ffffffffa00a489b>] ide_probe_port+0x175/0x469 [ide_core]
> [<ffffffffa00a5750>] ide_host_register+0x2b8/0x611 [ide_core]
> [<ffffffffa00a8526>] ? do_ide_setup_pci_device+0x70/0xd3 [ide_core]
> [<ffffffffa00a8f1d>] ide_pci_init_one+0xcc/0xee [ide_core]
> [<ffffffff8025e852>] ? trace_hardirqs_off+0xd/0xf
> [<ffffffff8045dd92>] ? _spin_unlock_irqrestore+0x3d/0x4c
> [<ffffffff8023e3ec>] ? release_console_sem+0x1b0/0x1e5
> [<ffffffff8045aac8>] ? printk+0x41/0x49
> [<ffffffffa00bf604>] amd74xx_probe+0x13e/0x145 [amd74xx]
> [<ffffffffa00bf340>] ? init_chipset_amd74xx+0x0/0x160 [amd74xx]
> [<ffffffffa00bf4a0>] ? init_hwif_amd74xx+0x0/0x26 [amd74xx]
> [<ffffffff80345fb6>] pci_device_probe+0xc6/0x11d
> [<ffffffff803b7f1d>] driver_probe_device+0xc3/0x168
> [<ffffffff803b801f>] __driver_attach+0x5d/0x80
> [<ffffffff803b7fc2>] ? __driver_attach+0x0/0x80
> [<ffffffff803b7794>] bus_for_each_dev+0x59/0x90
> [<ffffffff803b7d60>] driver_attach+0x21/0x23
> [<ffffffff803b703b>] bus_add_driver+0xbf/0x20c
> [<ffffffff803b822e>] driver_register+0xb0/0x130
> [<ffffffff8034628d>] __pci_register_driver+0x68/0xa3
> [<ffffffffa0023000>] ? amd74xx_ide_init+0x0/0x20 [amd74xx]
> [<ffffffffa002301e>] amd74xx_ide_init+0x1e/0x20 [amd74xx]
> [<ffffffff8020905b>] _stext+0x5b/0x135
> [<ffffffff802561b0>] ? __blocking_notifier_call_chain+0x5d/0x6f
> [<ffffffff8026af0c>] sys_init_module+0xb0/0x1d3
> [<ffffffff8020c2cb>] system_call_fastpath+0x16/0x1b
Fix below. Thanks again Larry!
[ I now always run with LOCKDEP=y but the issue was probably hidden by the
ide_probe_port() IRQ masking cleanup (http://lkml.org/lkml/2009/1/6/267)
so I didn't catch it before push to Linus... ]
From: Bartlomiej Zolnierkiewicz <[email protected]>
Subject: [PATCH] ide: fix accidental LOCKDEP breakage caused by local_irq_set() removal
commit 54cc1428cfa619e16d75baae8cb041a2eff015f0 ("ide: remove
local_irq_set() macro") accidentally replaced local_save_flags()
by local_irq_set() in ide_probe_port() and __ide_wait_stat()
which resulted in LOCKDEP breakage.
Reported-by: Larry Finger <[email protected]>
Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]>
---
drivers/ide/ide-iops.c | 2 +-
drivers/ide/ide-probe.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
Index: b/drivers/ide/ide-iops.c
===================================================================
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -493,7 +493,7 @@ static int __ide_wait_stat(ide_drive_t *
stat = tp_ops->read_status(hwif);
if (stat & ATA_BUSY) {
- local_irq_save(flags);
+ local_save_flags(flags);
local_irq_enable_in_hardirq();
timeout += jiffies;
while ((stat = tp_ops->read_status(hwif)) & ATA_BUSY) {
Index: b/drivers/ide/ide-probe.c
===================================================================
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -796,7 +796,7 @@ static int ide_probe_port(ide_hwif_t *hw
if (irqd)
disable_irq(hwif->irq);
- local_irq_save(flags);
+ local_save_flags(flags);
local_irq_enable_in_hardirq();
if (ide_port_wait_ready(hwif) == -EBUSY)
Ben,
Ben, Is this related to the IDE 'splat' you saw yesterday?
Harvey
On Wed, 2009-01-07 at 21:15 +0100, Bartlomiej Zolnierkiewicz wrote:
> On Wednesday 07 January 2009, Larry Finger wrote:
> > The latest GIT generates the following BUG.
> >
> >
> > BUG: sleeping function called from invalid context at mm/slab.c:3046
> > in_atomic(): 0, irqs_disabled(): 1, pid: 523, name: modprobe
> > no locks held by modprobe/523.
> > irq event stamp: 17802
> > hardirqs last enabled at (17801): [<ffffffff8045dd99>]
> > _spin_unlock_irqrestore+0x44/0x4c
> > hardirqs last disabled at (17802): [<ffffffffa00a4792>]
> > ide_probe_port+0x6c/0x469 [ide_core]
> > softirqs last enabled at (17796): [<ffffffff802431f3>]
> > __do_softirq+0x159/0x166
> > softirqs last disabled at (17789): [<ffffffff8020d4bc>]
> > call_softirq+0x1c/0x28
> > Pid: 523, comm: modprobe Not tainted 2.6.28-Linus-06858-g637b180 #31
> > Call Trace:
> > [<ffffffff8025dbdd>] ? print_irqtrace_events+0xd0/0xd4
> > [<ffffffff80236bcd>] __might_sleep+0xf9/0xfb
> > [<ffffffff802b5469>] kmem_cache_alloc+0x2d/0x142
> > [<ffffffffa00a489b>] ide_probe_port+0x175/0x469 [ide_core]
> > [<ffffffffa00a5750>] ide_host_register+0x2b8/0x611 [ide_core]
> > [<ffffffffa00a8526>] ? do_ide_setup_pci_device+0x70/0xd3 [ide_core]
> > [<ffffffffa00a8f1d>] ide_pci_init_one+0xcc/0xee [ide_core]
> > [<ffffffff8025e852>] ? trace_hardirqs_off+0xd/0xf
> > [<ffffffff8045dd92>] ? _spin_unlock_irqrestore+0x3d/0x4c
> > [<ffffffff8023e3ec>] ? release_console_sem+0x1b0/0x1e5
> > [<ffffffff8045aac8>] ? printk+0x41/0x49
> > [<ffffffffa00bf604>] amd74xx_probe+0x13e/0x145 [amd74xx]
> > [<ffffffffa00bf340>] ? init_chipset_amd74xx+0x0/0x160 [amd74xx]
> > [<ffffffffa00bf4a0>] ? init_hwif_amd74xx+0x0/0x26 [amd74xx]
> > [<ffffffff80345fb6>] pci_device_probe+0xc6/0x11d
> > [<ffffffff803b7f1d>] driver_probe_device+0xc3/0x168
> > [<ffffffff803b801f>] __driver_attach+0x5d/0x80
> > [<ffffffff803b7fc2>] ? __driver_attach+0x0/0x80
> > [<ffffffff803b7794>] bus_for_each_dev+0x59/0x90
> > [<ffffffff803b7d60>] driver_attach+0x21/0x23
> > [<ffffffff803b703b>] bus_add_driver+0xbf/0x20c
> > [<ffffffff803b822e>] driver_register+0xb0/0x130
> > [<ffffffff8034628d>] __pci_register_driver+0x68/0xa3
> > [<ffffffffa0023000>] ? amd74xx_ide_init+0x0/0x20 [amd74xx]
> > [<ffffffffa002301e>] amd74xx_ide_init+0x1e/0x20 [amd74xx]
> > [<ffffffff8020905b>] _stext+0x5b/0x135
> > [<ffffffff802561b0>] ? __blocking_notifier_call_chain+0x5d/0x6f
> > [<ffffffff8026af0c>] sys_init_module+0xb0/0x1d3
> > [<ffffffff8020c2cb>] system_call_fastpath+0x16/0x1b
>
> Fix below. Thanks again Larry!
>
> [ I now always run with LOCKDEP=y but the issue was probably hidden by the
> ide_probe_port() IRQ masking cleanup (http://lkml.org/lkml/2009/1/6/267)
> so I didn't catch it before push to Linus... ]
>
> From: Bartlomiej Zolnierkiewicz <[email protected]>
> Subject: [PATCH] ide: fix accidental LOCKDEP breakage caused by local_irq_set() removal
>
> commit 54cc1428cfa619e16d75baae8cb041a2eff015f0 ("ide: remove
> local_irq_set() macro") accidentally replaced local_save_flags()
> by local_irq_set() in ide_probe_port() and __ide_wait_stat()
> which resulted in LOCKDEP breakage.
>
> Reported-by: Larry Finger <[email protected]>
> Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]>
> ---
> drivers/ide/ide-iops.c | 2 +-
> drivers/ide/ide-probe.c | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> Index: b/drivers/ide/ide-iops.c
> ===================================================================
> --- a/drivers/ide/ide-iops.c
> +++ b/drivers/ide/ide-iops.c
> @@ -493,7 +493,7 @@ static int __ide_wait_stat(ide_drive_t *
> stat = tp_ops->read_status(hwif);
>
> if (stat & ATA_BUSY) {
> - local_irq_save(flags);
> + local_save_flags(flags);
> local_irq_enable_in_hardirq();
> timeout += jiffies;
> while ((stat = tp_ops->read_status(hwif)) & ATA_BUSY) {
> Index: b/drivers/ide/ide-probe.c
> ===================================================================
> --- a/drivers/ide/ide-probe.c
> +++ b/drivers/ide/ide-probe.c
> @@ -796,7 +796,7 @@ static int ide_probe_port(ide_hwif_t *hw
> if (irqd)
> disable_irq(hwif->irq);
>
> - local_irq_save(flags);
> + local_save_flags(flags);
> local_irq_enable_in_hardirq();
>
> if (ide_port_wait_ready(hwif) == -EBUSY)
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
Bartlomiej Zolnierkiewicz wrote:
> On Wednesday 07 January 2009, Larry Finger wrote:
>> The latest GIT generates the following BUG.
>>
>>
>> BUG: sleeping function called from invalid context at mm/slab.c:3046
>> in_atomic(): 0, irqs_disabled(): 1, pid: 523, name: modprobe
>> no locks held by modprobe/523.
>> irq event stamp: 17802
>> [<ffffffff8020c2cb>] system_call_fastpath+0x16/0x1b
>
> Fix below. Thanks again Larry!
Tested-by: Larry Finger <[email protected]>
The fix works here.
Larry
On Wed, 2009-01-07 at 12:37 -0800, Harvey Harrison wrote:
> Ben,
>
> Ben, Is this related to the IDE 'splat' you saw yesterday?
I doubt it but heh, with IDE you never know :-) I'll dig that, it could
even by that HW gone bad ... Finishing touches on my next pull request
and then I'll look at it.
Cheers,
Ben.
> Harvey
>
> On Wed, 2009-01-07 at 21:15 +0100, Bartlomiej Zolnierkiewicz wrote:
> > On Wednesday 07 January 2009, Larry Finger wrote:
> > > The latest GIT generates the following BUG.
> > >
> > >
> > > BUG: sleeping function called from invalid context at mm/slab.c:3046
> > > in_atomic(): 0, irqs_disabled(): 1, pid: 523, name: modprobe
> > > no locks held by modprobe/523.
> > > irq event stamp: 17802
> > > hardirqs last enabled at (17801): [<ffffffff8045dd99>]
> > > _spin_unlock_irqrestore+0x44/0x4c
> > > hardirqs last disabled at (17802): [<ffffffffa00a4792>]
> > > ide_probe_port+0x6c/0x469 [ide_core]
> > > softirqs last enabled at (17796): [<ffffffff802431f3>]
> > > __do_softirq+0x159/0x166
> > > softirqs last disabled at (17789): [<ffffffff8020d4bc>]
> > > call_softirq+0x1c/0x28
> > > Pid: 523, comm: modprobe Not tainted 2.6.28-Linus-06858-g637b180 #31
> > > Call Trace:
> > > [<ffffffff8025dbdd>] ? print_irqtrace_events+0xd0/0xd4
> > > [<ffffffff80236bcd>] __might_sleep+0xf9/0xfb
> > > [<ffffffff802b5469>] kmem_cache_alloc+0x2d/0x142
> > > [<ffffffffa00a489b>] ide_probe_port+0x175/0x469 [ide_core]
> > > [<ffffffffa00a5750>] ide_host_register+0x2b8/0x611 [ide_core]
> > > [<ffffffffa00a8526>] ? do_ide_setup_pci_device+0x70/0xd3 [ide_core]
> > > [<ffffffffa00a8f1d>] ide_pci_init_one+0xcc/0xee [ide_core]
> > > [<ffffffff8025e852>] ? trace_hardirqs_off+0xd/0xf
> > > [<ffffffff8045dd92>] ? _spin_unlock_irqrestore+0x3d/0x4c
> > > [<ffffffff8023e3ec>] ? release_console_sem+0x1b0/0x1e5
> > > [<ffffffff8045aac8>] ? printk+0x41/0x49
> > > [<ffffffffa00bf604>] amd74xx_probe+0x13e/0x145 [amd74xx]
> > > [<ffffffffa00bf340>] ? init_chipset_amd74xx+0x0/0x160 [amd74xx]
> > > [<ffffffffa00bf4a0>] ? init_hwif_amd74xx+0x0/0x26 [amd74xx]
> > > [<ffffffff80345fb6>] pci_device_probe+0xc6/0x11d
> > > [<ffffffff803b7f1d>] driver_probe_device+0xc3/0x168
> > > [<ffffffff803b801f>] __driver_attach+0x5d/0x80
> > > [<ffffffff803b7fc2>] ? __driver_attach+0x0/0x80
> > > [<ffffffff803b7794>] bus_for_each_dev+0x59/0x90
> > > [<ffffffff803b7d60>] driver_attach+0x21/0x23
> > > [<ffffffff803b703b>] bus_add_driver+0xbf/0x20c
> > > [<ffffffff803b822e>] driver_register+0xb0/0x130
> > > [<ffffffff8034628d>] __pci_register_driver+0x68/0xa3
> > > [<ffffffffa0023000>] ? amd74xx_ide_init+0x0/0x20 [amd74xx]
> > > [<ffffffffa002301e>] amd74xx_ide_init+0x1e/0x20 [amd74xx]
> > > [<ffffffff8020905b>] _stext+0x5b/0x135
> > > [<ffffffff802561b0>] ? __blocking_notifier_call_chain+0x5d/0x6f
> > > [<ffffffff8026af0c>] sys_init_module+0xb0/0x1d3
> > > [<ffffffff8020c2cb>] system_call_fastpath+0x16/0x1b
> >
> > Fix below. Thanks again Larry!
> >
> > [ I now always run with LOCKDEP=y but the issue was probably hidden by the
> > ide_probe_port() IRQ masking cleanup (http://lkml.org/lkml/2009/1/6/267)
> > so I didn't catch it before push to Linus... ]
> >
> > From: Bartlomiej Zolnierkiewicz <[email protected]>
> > Subject: [PATCH] ide: fix accidental LOCKDEP breakage caused by local_irq_set() removal
> >
> > commit 54cc1428cfa619e16d75baae8cb041a2eff015f0 ("ide: remove
> > local_irq_set() macro") accidentally replaced local_save_flags()
> > by local_irq_set() in ide_probe_port() and __ide_wait_stat()
> > which resulted in LOCKDEP breakage.
> >
> > Reported-by: Larry Finger <[email protected]>
> > Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]>
> > ---
> > drivers/ide/ide-iops.c | 2 +-
> > drivers/ide/ide-probe.c | 2 +-
> > 2 files changed, 2 insertions(+), 2 deletions(-)
> >
> > Index: b/drivers/ide/ide-iops.c
> > ===================================================================
> > --- a/drivers/ide/ide-iops.c
> > +++ b/drivers/ide/ide-iops.c
> > @@ -493,7 +493,7 @@ static int __ide_wait_stat(ide_drive_t *
> > stat = tp_ops->read_status(hwif);
> >
> > if (stat & ATA_BUSY) {
> > - local_irq_save(flags);
> > + local_save_flags(flags);
> > local_irq_enable_in_hardirq();
> > timeout += jiffies;
> > while ((stat = tp_ops->read_status(hwif)) & ATA_BUSY) {
> > Index: b/drivers/ide/ide-probe.c
> > ===================================================================
> > --- a/drivers/ide/ide-probe.c
> > +++ b/drivers/ide/ide-probe.c
> > @@ -796,7 +796,7 @@ static int ide_probe_port(ide_hwif_t *hw
> > if (irqd)
> > disable_irq(hwif->irq);
> >
> > - local_irq_save(flags);
> > + local_save_flags(flags);
> > local_irq_enable_in_hardirq();
> >
> > if (ide_port_wait_ready(hwif) == -EBUSY)
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> > the body of a message to [email protected]
> > More majordomo info at http://vger.kernel.org/majordomo-info.html
> > Please read the FAQ at http://www.tux.org/lkml/
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/