[Bug 91711] New: 3w-9xxx: DMA-API: device driver tries to free DMA memory it has not allocated

[Bug 91711] New: 3w-9xxx: DMA-API: device driver tries to free DMA memory it has not allocated

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=91711

            Bug ID: 91711
           Summary: 3w-9xxx: DMA-API: device driver tries to free DMA
                    memory it has not allocated
           Product: IO/Storage
           Version: 2.5
    Kernel Version: 3.18.3
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: SCSI
          Assignee: linux-scsi@vger.kernel.org
          Reporter: admin@e-blokos.com
        Regression: No

3w-9xxx 0000:03:03.0: DMA-API: device driver tries to free DMA memory it has
not allocated [device address=0x0000000000000000] [size=0 bytes]
can cause randomly a kernel panic...

here is the bug trace

[10205.263190] ------------[ cut here ]------------
[10205.271182] WARNING: CPU: 3 PID: 0 at lib/dma-debug.c:1080
check_unmap+0x8ea/0x9e0()
[10205.273087] 3w-9xxx 0000:03:03.0: DMA-API: device driver tries to free DMA
memory it has not allocated [device address=0x0000000000000000] [size=0 bytes]
[10205.273087] Modules linked in: rpcsec_gss_krb5 nfsv4 dns_resolver nfs
fscache nfnetlink_queue nfnetlink_log nfnetlink tun bridge stp llc bonding
ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat
iptable_mangle ts_kmp xt_limit nf_conntrack_ipv4 nf_defrag_ipv4 ip6t_REJECT
nf_reject_ipv6 xt_hashlimit nf_conntrack_ipv6 nf_defrag_ipv6 xt_string
xt_multiport xt_conntrack nf_conntrack ip6table_filter ip6_tables iTCO_wdt
ppdev iTCO_vendor_support lpc_ich mfd_core serio_raw pcspkr e752x_edac
parport_pc i2c_i801 edac_core parport shpchp nfsd auth_rpcgss nfs_acl lockd
grace sunrpc ata_generic pata_acpi tg3 e1000 3w_9xxx
[10205.273087] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 3.18.3 #1
[10205.273087] Hardware name: Supermicro X6DH8/X6DH8, BIOS 6.00 08/16/2007
[10205.273087]  0000000000000000 fa5e96fc2665aa72 ffff88022fd83b68
ffffffff817a573e
[10205.273087]  0000000000000000 ffff88022fd83bc0 ffff88022fd83ba8
ffffffff81093601
[10205.273087]  ffff88022fd83ba8 ffff880223d47a60 ffff88022fd83cb8
0000000000000000
[10205.273087] Call Trace:
[10205.273087]  <IRQ>  [<ffffffff817a573e>] dump_stack+0x4f/0x7c
[10205.273087]  [<ffffffff81093601>] warn_slowpath_common+0x81/0xa0
[10205.273087]  [<ffffffff81093675>] warn_slowpath_fmt+0x55/0x70
[10205.273087]  [<ffffffff813c68db>] ? debug_dma_mapping_error+0x7b/0x90
[10205.273087]  [<ffffffff813c8a9a>] check_unmap+0x8ea/0x9e0
[10205.273087]  [<ffffffff817ac021>] ? _raw_spin_unlock_irqrestore+0x21/0x40
[10205.273087]  [<ffffffff813c8d45>] debug_dma_unmap_sg+0x75/0x150
[10205.273087]  [<ffffffff814f73d3>] scsi_dma_unmap+0x73/0xc0
[10205.273087]  [<ffffffffa00016a5>] twa_interrupt+0x585/0x770 [3w_9xxx]
[10205.273087]  [<ffffffff810fea9b>] ? __hrtimer_start_range_ns+0x1eb/0x480
[10205.273087]  [<ffffffff810eba7e>] handle_irq_event_percpu+0x3e/0x1f0
[10205.273087]  [<ffffffff810ebc71>] handle_irq_event+0x41/0x70
[10205.273087]  [<ffffffff810eecc3>] handle_fasteoi_irq+0xc3/0x170
[10205.273087]  [<ffffffff81018752>] handle_irq+0xb2/0x1a0
[10205.273087]  [<ffffffff810b42ce>] ? atomic_notifier_call_chain+0x3e/0x50
[10205.273087]  [<ffffffff817af86d>] do_IRQ+0x5d/0x100
[10205.273087]  [<ffffffff817ad6ed>] common_interrupt+0x6d/0x6d
[10205.273087]  <EOI>  [<ffffffff8110e6b0>] ?
tick_nohz_stop_sched_tick+0x2b0/0x300
[10205.273087]  [<ffffffff8105aae6>] ? native_safe_halt+0x6/0x10
[10205.273087]  [<ffffffff813b6137>] ? debug_smp_processor_id+0x17/0x20
[10205.273087]  [<ffffffff810212cb>] default_idle+0x1b/0xf0
[10205.273087]  [<ffffffff81021dcf>] arch_cpu_idle+0xf/0x20
[10205.273087]  [<ffffffff810d6d26>] cpu_startup_entry+0x456/0x510
[10205.273087]  [<ffffffff817ac021>] ? _raw_spin_unlock_irqrestore+0x21/0x40
[10205.273087]  [<ffffffff8110b44c>] ? clockevents_register_device+0xbc/0x130
[10205.273087]  [<ffffffff81049281>] start_secondary+0x1b1/0x200
[10205.273087] ---[ end trace f8b7f072834e5aba ]---

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[Bug 91711] 3w-9xxx: DMA-API: device driver tries to free DMA memory it has not allocated

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Orion <admin@e-blokos.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|SCSI                        |Other
            Product|IO/Storage                  |SCSI Drivers

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[Bug 91711] 3w-9xxx: DMA-API: device driver tries to free DMA memory it has not allocated

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nickkrause@sympatico.ca changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |nickkrause@sympatico.ca

--- Comment #1 from nickkrause@sympatico.ca ---
Created attachment 209671
  --> https://bugzilla.kernel.org/attachment.cgi?id=209671&action=edit
Test Fix

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[Bug 91711] 3w-9xxx: DMA-API: device driver tries to free DMA memory it has not allocated

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--- Comment #2 from nickkrause@sympatico.ca ---
The patch I just attached about this may fix your issue.

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[Bug 91711] 3w-9xxx: DMA-API: device driver tries to free DMA memory it has not allocated

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--- Comment #3 from Orion <admin@e-blokos.com> ---
Seems to work now thank you very much.
do you think your patch will be included on 4.x kernels?

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[Bug 91711] 3w-9xxx: DMA-API: device driver tries to free DMA memory it has not allocated

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--- Comment #4 from nickkrause@sympatico.ca ---
Created attachment 209781
  --> https://bugzilla.kernel.org/attachment.cgi?id=209781&action=edit
Test Patch

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[Bug 91711] 3w-9xxx: DMA-API: device driver tries to free DMA memory it has not allocated

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--- Comment #5 from nickkrause@sympatico.ca ---
If you are willing to test the patch against main line kernel just o make sure
it's just fine. I also rewrote the patch with a commit log now just add your
tested by below it.

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[Bug 91711] 3w-9xxx: DMA-API: device driver tries to free DMA memory it has not allocated

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--- Comment #6 from Orion <admin@e-blokos.com> ---
sorry I can't have access to the log anymore...

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[Bug 91711] 3w-9xxx: DMA-API: device driver tries to free DMA memory it has not allocated

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--- Comment #7 from nickkrause@sympatico.ca ---
The kernel log or the bug log.

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[Bug 91711] 3w-9xxx: DMA-API: device driver tries to free DMA memory it has not allocated

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--- Comment #8 from nickkrause@sympatico.ca ---
Sorry do you mean the bug log or the kernel bugzilla log?

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--- Comment #9 from Orion <admin@e-blokos.com> ---
just today my data center blocked my server where the card is
because of invoice contentious... a kind of conspiracy against my project....

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[Bug 91711] 3w-9xxx: DMA-API: device driver tries to free DMA memory it has not allocated

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--- Comment #10 from nickkrause@sympatico.ca ---
That's OK :). If you can however add tested by on my patch I would really
appreciate it.

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[Bug 91711] 3w-9xxx: DMA-API: device driver tries to free DMA memory it has not allocated

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--- Comment #11 from Orion <admin@e-blokos.com> ---
I just had time yesterday to check the log and see that the errors disappear.
today no ssh access at all. anyhow it's months now they are creating troubles
against me so I just give up and ask my money back next week.
cheers

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--- Comment #12 from Orion <admin@e-blokos.com> ---
how can I mark tested on your patch?

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--- Comment #13 from nickkrause@sympatico.ca ---
Just type the line:
Tested-by: Your Full Name email address

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--- Comment #14 from Orion <admin@e-blokos.com> ---
Tested-by: Orion admin@e-blokos.com

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--- Comment #15 from nickkrause@sympatico.ca ---
And if you do get around to it try testing on mainline. Personally I wrote the
patch on mail line so if it applies clearly to your kernel it possibly works
fine on main line but just doubt check if you can.

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--- Comment #16 from Orion <admin@e-blokos.com> ---
ok thanks. the best would be to check if another guys can test it also

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Adam Radford <aradford@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |aradford@gmail.com

--- Comment #17 from Adam Radford <aradford@gmail.com> ---
I think Christoph Hellwig already fixed this issue in the upstream kernel, with
these 2 upstream patches:

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=118c855b5623f3e2e6204f02623d88c09e0c34de

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=15e3d5a285ab9283136dba34bbf72886d9146706

I would apply the above 2 patches to your kernel and try to reproduce.

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--- Comment #18 from nickkrause@sympatico.ca ---
Those patches may fix it but I am pretty sure those patches are in the 3.18.3
kernel release back port. Maybe I am work but let Orion test those patches too
to see if those should be back ported or are already there.

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--- Comment #19 from Orion <admin@e-blokos.com> ---
Unfortunately for now my DC blocked all ssh access and I'm afraid it's for a
long time...

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