[CRASH] crypto: omap: kernel panic when modprobing tcrypt

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Hello

When testing omap crypto driver I hit freeze/crash when modprobing tcrypt.
The result is random (crash vs freeze) but this never succeed.

I test the driver on a omap4-panda

I tested next-20200122, 5.2.21, 5.0.21 and 5.5-rc7.

On 5.0.21:
[   62.644042] Internal error: Oops: 5 [#1] SMP ARM
[   62.644042] Modules linked in: authenc cmac gcm vmac xcbc streebog_generic sm3_generic sha3_generic crct10dif_generic crct10dif_common ghash_arm_ce ghash_generic seed rmd320 rmd256 rmd160 rmd128 cts ccm salsa20_generic camellia_generic fcrypt pcbc tgr192 anubis wp512 khazad tea michael_mic arc4 cast6_generic cast5_generic cast_common sha512_arm sha512_generic cfb ofb ux500_cryp aes_arm serpent_generic lrw gf128mul twofish_generic twofish_common blowfish_generic blowfish_common md4 tcrypt(+) ctr sha256_generic hmac md5 sha1_arm_neon sha1_arm sha1_generic aes_arm_bs crypto_simd cryptd phy_generic omap_des omap_sham omap_aes_driver omap_crypto omap2430 ehci_omap des_generic phy_twl6030_usb musb_hdrc
[   62.710723] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G        W         5.0.21 #2
[   62.714050] Hardware name: Generic OMAP4 (Flattened Device Tree)
[   62.724090] PC is at memcpy+0x48/0x330
[   62.727874] LR is at scatterwalk_copychunks+0x8c/0x184
[   62.733032] pc : [<c0e59308>]    lr : [<c062619c>]    psr: 60000113
[   62.736846] sp : c1701d4c  ip : 00000000  fp : c568a000
[   62.736846] r10: 00000080  r9 : 00000080  r8 : 00000001
[   62.749816] r7 : 00000001  r6 : 94478000  r5 : c1701d94  r4 : 00000098
[   62.754547] r3 : 00080000  r2 : 00000000  r1 : 94478000  r0 : c568a000
[   62.756378] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[   62.770080] Control: 10c5387d  Table: 857c804a  DAC: 00000051
[   62.772399] Process swapper/0 (pid: 0, stack limit = 0x(ptrval))
[   62.781890] Stack: (0xc1701d4c to 0xc1702000)
[   62.786254] 1d40:                            c1701d94 94478000 00000001 00000001 c568a000
[   62.794464] 1d60: 00000098 c062619c 00000001 c1708c48 94478000 00000080 c5536154 00000000
[   62.802368] 1d80: 94478000 00000080 c1703080 c06263cc c170cd04 c5536154 00000000 00000002
[   62.810913] 1da0: 00000000 c031728c 8010000d 00000001 eee96900 db55db46 c1708c48 c5281e8c
[   62.819122] 1dc0: 00000002 db55db46 00000002 c5281ea0 00000000 bf04c080 00000001 c0478228
[   62.827056] 1de0: c5281e40 c0317c2c 00000000 ef7a0354 00000000 00000006 00000100 bf076398
[   62.835540] 1e00: 0000000a 00000a13 00000000 c5281e60 c5281e64 c034c3bc c1703098 00000007
[   62.842376] 1e20: 00000040 00000006 ffffe000 c188a5e4 00000100 c0302218 c1708c48 00000001
[   62.851959] 1e40: c16603c0 c1668e80 c1708c78 00000009 c1660350 ffffa34a c1703d00 c0f07070
[   62.854400] 1e60: 00200102 eee79e68 00000000 c1668e34 00000000 00000000 00000001 ee824000
[   62.862365] 1e80: fa241100 95df4e6d 0000000e c034c00c c1668e34 c0399414 c170935c c1776744
[   62.876617] 1ea0: fa24010c fa240100 c1701ed0 c0692878 c0c60e10 60000113 ffffffff c1701f04
[   62.884826] 1ec0: ef7a8570 c1700000 95df4e6d c0301a0c 00000000 c1711ee4 2e140000 00000050
[   62.893035] 1ee0: c1711ee4 00000000 00000000 00000000 ef7a8570 c188ae40 95df4e6d 0000000e
[   62.899963] 1f00: ee6b2800 c1701f20 c0c60cac c0c60e10 60000113 ffffffff 00000051 00000000
[   62.909454] 1f20: 95df4e6d 0000000e c1701f73 00000000 007fbd7f 00000000 ef7a8870 db55db46
[   62.912414] 1f40: 00000002 ffffe000 c1708c78 c1708cbc 00000001 ef7a8570 c1708c48 c1668568
[   62.922393] 1f60: c1711ee4 c0374394 c188a087 00000000 00896580 db55db46 c15d9a3c 000000c8
[   62.934112] 1f80: 00000001 ffffffff c1708c40 c1896580 00000001 c15d9a3c c1708c48 c03746a8
[   62.942321] 1fa0: c18965d8 c1500e14 ffffffff ffffffff 00000000 c1500710 00000000 ef7c4600
[   62.950531] 1fc0: 00000000 c15d9a3c db50db53 00000000 00000000 c1500330 00000051 10c0387d
[   62.957916] 1fe0: 00000ae7 83f00000 411fc092 10c5387d 00000000 00000000 00000000 00000000
[   62.966949] [<c0e59308>] (memcpy) from [<c062619c>] (scatterwalk_copychunks+0x8c/0x184)
[   62.975006] [<c062619c>] (scatterwalk_copychunks) from [<c06263cc>] (scatterwalk_map_and_copy+0x64/0xb0)
[   62.984527] [<c06263cc>] (scatterwalk_map_and_copy) from [<bf04c080>] (omap_crypto_cleanup+0x80/0xb4 [omap_crypto])
[   62.995025] [<bf04c080>] (omap_crypto_cleanup [omap_crypto]) from [<bf076398>] (omap_des_done_task+0x168/0x268 [omap_des])
[   63.006164] [<bf076398>] (omap_des_done_task [omap_des]) from [<c034c3bc>] (tasklet_action_common.constprop.5+0x4c/0xcc)
[   63.017089] [<c034c3bc>] (tasklet_action_common.constprop.5) from [<c0302218>] (__do_softirq+0x130/0x3c8)
[   63.026702] [<c0302218>] (__do_softirq) from [<c034c00c>] (irq_exit+0xcc/0x10c)
[   63.034057] [<c034c00c>] (irq_exit) from [<c0399414>] (__handle_domain_irq+0x60/0xb4)
[   63.041931] [<c0399414>] (__handle_domain_irq) from [<c0692878>] (gic_handle_irq+0x58/0x9c)
[   63.050323] [<c0692878>] (gic_handle_irq) from [<c0301a0c>] (__irq_svc+0x6c/0x90)
[   63.052398] Exception stack(0xc1701ed0 to 0xc1701f18)
[   63.062896] 1ec0:                                     00000000 c1711ee4 2e140000 00000050
[   63.062896] 1ee0: c1711ee4 00000000 00000000 00000000 ef7a8570 c188ae40 95df4e6d 0000000e
[   63.072387] 1f00: ee6b2800 c1701f20 c0c60cac c0c60e10 60000113 ffffffff
[   63.085388] [<c0301a0c>] (__irq_svc) from [<c0c60e10>] (cpuidle_enter_state+0x2d0/0x5dc)
[   63.088409] [<c0c60e10>] (cpuidle_enter_state) from [<c0374394>] (do_idle+0x220/0x298)
[   63.102111] [<c0374394>] (do_idle) from [<c03746a8>] (cpu_startup_entry+0x18/0x1c)
[   63.103302] [<c03746a8>] (cpu_startup_entry) from [<c1500e14>] (start_kernel+0x43c/0x46c)
[   63.117950] Code: ba000002 f5d1f03c f5d1f05c f5d1f07c (e8b151f8) 
[   63.124114] ---[ end trace 5d689d873b1dfe82 ]---
[   63.128753] Kernel panic - not syncing: Fatal exception in interrupt
[   63.135131] CPU1: stopping
[   63.137847] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G      D W         5.0.21 #2
[   63.145202] Hardware name: Generic OMAP4 (Flattened Device Tree)
[   63.145202] [<c0312250>] (unwind_backtrace) from [<c030ccd0>] (show_stack+0x10/0x14)
[   63.159027] [<c030ccd0>] (show_stack) from [<c0e5afa8>] (dump_stack+0xb4/0xc8)
[   63.166290] [<c0e5afa8>] (dump_stack) from [<c0310720>] (handle_IPI+0x3bc/0x3dc)
[   63.173736] [<c0310720>] (handle_IPI) from [<c06928b8>] (gic_handle_irq+0x98/0x9c)
[   63.181335] [<c06928b8>] (gic_handle_irq) from [<c0301a0c>] (__irq_svc+0x6c/0x90)
[   63.181335] Exception stack(0xee8f7ef0 to 0xee8f7f38)
[   63.181335] 7ee0:                                     00000000 c1711ee4 2e151000 00000050
[   63.202117] 7f00: c1711ee4 00000000 00000000 00000000 ef7b9570 c188ae40 b2c455fd 0000000e
[   63.202117] 7f20: ee6b2800 ee8f7f40 c0c60cac c0c60e10 60000013 ffffffff
[   63.210357] [<c0301a0c>] (__irq_svc) from [<c0c60e10>] (cpuidle_enter_state+0x2d0/0x5dc)
[   63.225128] [<c0c60e10>] (cpuidle_enter_state) from [<c0c633cc>] (cpuidle_enter_state_coupled+0x144/0x3c8)
[   63.234832] [<c0c633cc>] (cpuidle_enter_state_coupled) from [<c0374394>] (do_idle+0x220/0x298)
[   63.234832] [<c0374394>] (do_idle) from [<c03746a8>] (cpu_startup_entry+0x18/0x1c)
[   63.234832] [<c03746a8>] (cpu_startup_entry) from [<8030254c>] (0x8030254c)
[   63.258087] ---[ end Kernel panic - not syncing: Fatal exception in interrupt ]---

I have also hit on 5.5-rc7
[   25.662384] ------------[ cut here ]------------
[   25.667053] WARNING: CPU: 0 PID: 125 at /linux/mm/page_alloc.c:4713 __alloc_pages_nodemask+0x658/0x10c8
[   25.677947] Modules linked in: ctr sha1_arm_neon(+) des_generic sha1_arm aes_arm_bs(+) crypto_simd cryptd sha1_generic phy_generic omap_sham(+) omap_aes_driver(+) omap2430 ehci_omap omap_des(+) omap_crypto libdes phy_twl6030_usb musb_hdrc
[   25.699249] CPU: 0 PID: 125 Comm: 480a5000.des-en Not tainted 5.5.0-rc7-00004-gdbab40bdb42c-dirty #2
[   25.708374] Hardware name: Generic OMAP4 (Flattened Device Tree)
[   25.714447] [<c03128f8>] (unwind_backtrace) from [<c030cc9c>] (show_stack+0x10/0x14)
[   25.722259] [<c030cc9c>] (show_stack) from [<c0eeccfc>] (dump_stack+0xc0/0xd4)
[   25.728271] [<c0eeccfc>] (dump_stack) from [<c0347b68>] (__warn+0xe0/0xf8)
[   25.728271] [<c0347b68>] (__warn) from [<c0347c30>] (warn_slowpath_fmt+0xb0/0xb8)
[   25.738281] [<c0347c30>] (warn_slowpath_fmt) from [<c047c054>] (__alloc_pages_nodemask+0x658/0x10c8)
[   25.753143] [<c047c054>] (__alloc_pages_nodemask) from [<c047cad8>] (__get_free_pages+0x14/0x24)
[   25.761993] [<c047cad8>] (__get_free_pages) from [<bf0301b4>] (omap_crypto_align_sg+0x1b4/0x42c [omap_crypto])
[   25.772033] [<bf0301b4>] (omap_crypto_align_sg [omap_crypto]) from [<bf037724>] (omap_des_prepare_req+0x84/0x244 [omap_des])
[   25.780670] [<bf037724>] (omap_des_prepare_req [omap_des]) from [<c06582d8>] (crypto_pump_work+0xec/0x240)
[   25.793029] [<c06582d8>] (crypto_pump_work) from [<c036901c>] (kthread_worker_fn+0x10c/0x1f4)
[   25.801605] [<c036901c>] (kthread_worker_fn) from [<c0369dbc>] (kthread+0x150/0x154)
[   25.809387] [<c0369dbc>] (kthread) from [<c03010e8>] (ret_from_fork+0x14/0x2c)
[   25.816650] Exception stack(0xc5507fb0 to 0xc5507ff8)
[   25.821716] 7fa0:                                     00000000 00000000 00000000 00000000
[   25.829925] 7fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   25.838134] 7fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[   25.844848] ---[ end trace 163fce45307eae52 ]---

On 5.0.21 I hit
[   60.062530] Internal error: Oops: 17 [#1] SMP ARM
[   60.066619] Modules linked in: authenc cmac gcm vmac xcbc streebog_generic sm3_generic sha3_generic crct10dif_generic crct10dif_common ghash_arm_ce ghash_generic seed rmd320 rmd256 rmd160 rmd128 cts ccm salsa20_generic camellia_generic fcrypt pcbc tgr192 anubis wp512 khazad tea michael_mic arc4 cast6_generic cast5_generic cast_common sha512_arm sha512_generic cfb ofb ux500_cryp aes_arm serpent_generic lrw gf128mul twofish_generic twofish_common blowfish_generic blowfish_common md4 tcrypt(+) ctr sha256_generic hmac md5 sha1_arm_neon sha1_arm phy_generic aes_arm_bs crypto_simd cryptd sha1_generic omap_aes_driver omap_sham omap2430 ehci_omap omap_des omap_crypto des_generic phy_twl6030_usb musb_hdrc
[   60.119415] CPU: 0 PID: 116 Comm: 480a5000.des-en Tainted: G        W         5.0.21 #3
[   60.137359] Hardware name: Generic OMAP4 (Flattened Device Tree)
[   60.143402] PC is at omap_des_prepare_req+0x168/0x274 [omap_des]
[   60.143493] LR is at 0x6
[   60.149444] pc : [<bf041768>]    lr : [<00000006>]    psr: 00000113
[   60.155303] sp : c53a9f18  ip : fa0a5000  fp : c53ec5dc
[   60.159423] r10: c1708c48  r9 : c54a250c  r8 : 000c3d00
[   60.167480] r7 : 00000000  r6 : 00000008  r5 : 00000913  r4 : c52d7140
[   60.167480] r3 : 00000290  r2 : db55db46  r1 : c54eef40  r0 : 00000001
[   60.181884] Flags: nzcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[   60.183258] Control: 10c5387d  Table: 8534004a  DAC: 00000051
[   60.189422] Process 480a5000.des-en (pid: 116, stack limit = 0x(ptrval))
[   60.199401] Stack: (0xc53a9f18 to 0xc53aa000)
[   60.199401] 9f00:                                                       00000000 0000000a
[   60.214141] 9f20: c52d7158 db55db46 c53958d8 c53958ac c54eef00 c5395880 c53958b0 c0623fc4
[   60.222351] 9f40: c53958d8 c53ec540 ffffe000 c18bb964 c53ec544 00000001 c1708c48 c0365ef0
[   60.229400] 9f60: ffffe000 db55db46 c53ec5c0 c53ec580 00000000 c53a8000 c53ec540 c0365dec
[   60.234130] 9f80: c5377c04 c0365db8 00000001 c53ec580 c0365c6c 00000000 00000000 00000000
[   60.247009] 9fa0: 00000000 00000000 00000000 c03010e8 00000000 00000000 00000000 00000000
[   60.249420] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   60.249420] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[   60.271697] [<bf041768>] (omap_des_prepare_req [omap_des]) from [<c0623fc4>] (crypto_pump_work+0xec/0x240)
[   60.281402] [<c0623fc4>] (crypto_pump_work) from [<c0365ef0>] (kthread_worker_fn+0x104/0x1ec)
[   60.289978] [<c0365ef0>] (kthread_worker_fn) from [<c0365db8>] (kthread+0x14c/0x154)
[   60.297760] [<c0365db8>] (kthread) from [<c03010e8>] (ret_from_fork+0x14/0x2c)
[   60.304595] Exception stack(0xc53a9fb0 to 0xc53a9ff8)
[   60.310089] 9fa0:                                     00000000 00000000 00000000 00000000
[   60.318298] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   60.326507] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[   60.333160] Code: e594809c e594c00c e1b0e12e 0a00000a (e598600c) 
[   60.339447] ---[ end trace 1c4ef7665b4e53a4 ]---

Regards



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