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