LS1-DMA-API: device driver tries to free DMA memory it has not allocated

[niteshnarayanla]

caam 1700000.crypto: Instantiated RNG4 SH0

caam 1700000.crypto: Instantiated RNG4 SH1

caam 1700000.crypto: device ID = 0x0a140300 (Era 67108864)

caam 1700000.crypto: job rings = 4, qi = 0

alg: No test for authenc(hmac(md5),cbc(aes)) (authenc-hmac-md5-cbc-aes-caam)

caam_jr_enqueue:87891000

Found

caam_jr_dequeue:87891000

------------[ cut here ]------------

WARNING: CPU: 0 PID: 60 at lib/dma-debug.c:877 check_unmap+0x178/0x7b8()

(null): DMA-API: device driver tries to free DMA memory it has not allocated [device address=0x0000000087891000] [size=28 bytes]

Modules linked in:

CPU: 0 PID: 60 Comm: cryptomgr_test Not tainted 3.12.0+ #25

Backtrace:

[<800111ec>] (dump_backtrace+0x0/0x108) from [<80011384>] (show_stack+0x18/0x1c)

r6:805a5c41 r5:00000009 r4:00000000 r3:00208040

[<8001136c>] (show_stack+0x0/0x1c) from [<8048f2d4>] (dump_stack+0x70/0x8c)

[<8048f264>] (dump_stack+0x0/0x8c) from [<8001d598>] (warn_slowpath_common+0x6c/0x90)

r4:bc7ff9b8 r3:60000113

[<8001d52c>] (warn_slowpath_common+0x0/0x90) from [<8001d660>] (warn_slowpath_fmt+0x38/0x40)

r8:806a3200 r7:00000000 r6:bc7ffa30 r5:87891000 r4:87891000

[<8001d628>] (warn_slowpath_fmt+0x0/0x40) from [<802075c8>] (check_unmap+0x178/0x7b8)

r3:805a20d6 r2:805a60df

[<80207450>] (check_unmap+0x0/0x7b8) from [<80207df8>] (debug_dma_unmap_page+0x6c/0x78)

r8:00000001 r7:00000001 r6:8881747c r5:87891000 r4:0000001c

[<80207d8c>] (debug_dma_unmap_page+0x0/0x78) from [<8037b4d0>] (caam_jr_dequeue+0x15c/0x2a4)

r7:00000000 r6:00000000 r5:00000000 r4:bf0b4a00

[<8037b374>] (caam_jr_dequeue+0x0/0x2a4) from [<803adb20>] (net_rx_action+0x70/0x17c)

[<803adab0>] (net_rx_action+0x0/0x17c) from [<8002120c>] (__do_softirq+0xd0/0x1b8)

[<8002113c>] (__do_softirq+0x0/0x1b8) from [<80021398>] (do_softirq+0x4c/0x58)

[<8002134c>] (do_softirq+0x0/0x58) from [<80021624>] (irq_exit+0x8c/0xe0)

r4:bc7fe000 r3:00000000

[<80021598>] (irq_exit+0x0/0xe0) from [<8000eb44>] (handle_IRQ+0x70/0x94)

r4:00000087 r3:00000100

[<8000ead4>] (handle_IRQ+0x0/0x94) from [<80008538>] (gic_handle_irq+0x44/0x68)

usb 1-1: new high-speed USB device number 2 using xhci-hcd

r5:bc7ffbd0 r4:c0802000

[<800084f4>] (gic_handle_irq+0x0/0x68) from [<80011e80>] (__irq_svc+0x40/0x50)

Exception stack(0xbc7ffbd0 to 0xbc7ffc18)

fbc0:                                     bc7ffc9c bc7ffc38 00000000 00000001

fbe0: 7fffffff bc7ffc98 bc7ffc9c 00000001 bc7fe000 bc7ffc98 00000001 bc7ffc24

fc00: bc7ffc18 bc7ffc18 80493ba8 80493bac 60000113 ffffffff

r6:ffffffff r5:60000113 r4:80493bac r3:80493ba8

[<80493b98>] (_raw_spin_unlock_irq+0x0/0x18) from [<8049297c>] (wait_for_common+0x128/0x170)

[<80492854>] (wait_for_common+0x0/0x170) from [<80492a10>] (wait_for_completion_interruptible+0x18/0x24)

[<804929f8>] (wait_for_completion_interruptible+0x0/0x24) from [<8037bd9c>] (gen_split_key+0x2c8/0x3d0)

[<8037bad4>] (gen_split_key+0x0/0x3d0) from [<8037db6c>] (aead_setkey+0x8c/0x23c)

[<8037dae0>] (aead_setkey+0x0/0x23c) from [<801c5164>] (setkey+0x9c/0xa8)

[<801c50c8>] (setkey+0x0/0xa8) from [<801cb390>] (__test_aead+0x244/0xd1c)

[<801cb14c>] (__test_aead+0x0/0xd1c) from [<801ccaec>] (test_aead+0x30/0xbc)

[<801ccabc>] (test_aead+0x0/0xbc) from [<801ccbec>] (alg_test_aead+0x74/0xac)

hub 1-1:1.0: USB hub found

r8:bf0b3280hub 1-1:1.0: 4 ports detected

r7:bf0b3240 r6:804a8c68 r5:bf317800 r4:00000000

[<801ccb78>] (alg_test_aead+0x0/0xac) from [<801cc0b8>] (alg_test+0x1e4/0x27c)

r7:00001083 r6:ffffffff r5:bf0b3240 r4:00000000

[<801cbed4>] (alg_test+0x0/0x27c) from [<801c9cb4>] (cryptomgr_test+0x2c/0x50)

[<801c9c88>] (cryptomgr_test+0x0/0x50) from [<80038688>] (kthread+0xb4/0xc4)

r4:bf081d7c r3:00000000

[<800385d4>] (kthread+0x0/0xc4) from [<8000e298>] (ret_from_fork+0x14/0x3c)

r7:00000000 r6:00000000 r5:800385d4 r4:bf081d7c

---[ end trace 11601762206b1dd0 ]---

I was trying to figure out the issue over here.

Any help is much appreciated.

[alexander_yakov]

Which Freescale processor you are using? I see LS1 so I assume LayerScape LS1021A family device.

The Linux SDK for this product is not public yet, it is still preliminary. This SDK is available for limited list of customers, so I do not think you will find the solution in this public community.

Seaching by "device driver tries to free DMA memory it has not allocated" keyword I see similar issue reported for i.MX6 some time ago, so I assume there is a similar problem. Please look:

iMX6Q: DMA-API: device driver tries to free DMA memory it has not allocated

The SDK version you are using is not most recent - I see more recent SDK version has been released yesterday, so please obtain this more recent version and check if the problem is not fixed yet.

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