Hi, i guess this shouldnt happen, got this when loading the tcrypt module [ 60.113277] testing ecb(seed) decryption across pages (chunking) [ 60.113309] [ 60.113311] testing cts(cbc(aes)) encryption [ 60.120984] test 1 (128 bit key): [ 60.121153] ------------[ cut here ]------------ [ 60.121312] kernel BUG at include/linux/scatterlist.h:65! [ 60.121446] invalid opcode: 0000 [#1] PREEMPT DEBUG_PAGEALLOC [ 60.121828] Modules linked in: tcrypt(+) [ 60.122019] [ 60.122019] Pid: 4100, comm: modprobe Not tainted (2.6.26-rc4-00103-g1beee8d #7) [ 60.122019] EIP: 0060:[<c043feb0>] EFLAGS: 00010216 CPU: 0 [ 60.122019] EIP is at cts_cbc_encrypt+0x2f0/0x300 [ 60.122019] EAX: c11808e0 EBX: 00000010 ECX: c1002000 EDX: c11813c0 [ 60.122019] ESI: cbd4a5a0 EDI: cbf47bc0 EBP: cbf47c7c ESP: cbf47b3c [ 60.122019] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 [ 60.122019] Process modprobe (pid: 4100, ti=cbf47000 task=cbf0ef20 task.ti=cbf47000) [ 60.122019] Stack: 00000011 00000000 00000046 00000001 00000046 c0a2c4c0 00000000 cbf47b60 [ 60.122019] c01464ad cbf47b9c 00000046 00000046 00000000 cbf47b8c c014048e cbf47ba4 [ 60.122019] 00014f76 6f772049 20646c75 656b696c 65687420 00000020 00000000 00000000 [ 60.122019] Call Trace: [ 60.122019] [<c01464ad>] ? put_lock_stats+0xd/0x30 [ 60.122019] [<c014048e>] ? getnstimeofday+0x3e/0x100 [ 60.122019] [<c013e26e>] ? hrtimer_interrupt+0x15e/0x190 [ 60.122019] [<c01884c1>] ? check_bytes_and_report+0x21/0xc0 [ 60.122019] [<c01881a3>] ? slab_pad_check+0x73/0x110 [ 60.122019] [<c01898e3>] ? __slab_free+0x63/0x2e0 [ 60.122019] [<c043ff9e>] ? crypto_cts_encrypt+0xde/0x100 [ 60.122019] [<c0433085>] ? setkey+0xc5/0xf0 [ 60.122019] [<c0433978>] ? async_encrypt+0x38/0x50 [ 60.122019] [<d0aab5a5>] ? test_cipher+0x215/0x840 [tcrypt] [ 60.122019] [<c014048e>] ? getnstimeofday+0x3e/0x100 [ 60.122019] [<c0143649>] ? clockevents_program_event+0x99/0x110 [ 60.122019] [<c0144622>] ? tick_program_event+0x42/0x70 [ 60.122019] [<c013e26e>] ? hrtimer_interrupt+0x15e/0x190 [ 60.122019] [<c0103e57>] ? restore_nocheck+0x12/0x15 [ 60.122019] [<d0abea40>] ? tcrypt_mod_init+0x1a40/0x1bf4 [tcrypt] [ 60.122019] [<c013ef6a>] ? blocking_notifier_call_chain+0x1a/0x20 [ 60.122019] [<c0150cfe>] ? sys_init_module+0xee/0x18e0 [ 60.122019] [<c0167e44>] ? unlock_page+0x24/0x30 [ 60.122019] [<c018ad10>] ? __kmalloc+0x0/0x100 [ 60.122019] [<c0103d6d>] ? sysenter_past_esp+0x6a/0xb1 [ 60.122019] ======================= [ 60.122019] Code: 0b eb fe 0f 0b eb fe 8d 74 26 00 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe 8d 74 26 00 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe 8d 74 26 00 <0f> 0b eb fe 8d b6 00 00 00 00 8d bf 00 00 00 00 55 89 e5 83 ec [ 60.122019] EIP: [<c043feb0>] cts_cbc_encrypt+0x2f0/0x300 SS:ESP 0068:cbf47b3c [ 60.174099] ---[ end trace 4865479eed551e02 ]--- easily reproducible, but stack strace looks a bit different [ 353.926510] [ 353.926512] testing ecb(seed) decryption across pages (chunking) [ 353.926540] [ 353.926542] testing cts(cbc(aes)) encryption [ 353.930471] test 1 (128 bit key): [ 353.930603] ------------[ cut here ]------------ [ 353.930758] kernel BUG at include/linux/scatterlist.h:65! [ 353.930890] invalid opcode: 0000 [#1] PREEMPT DEBUG_PAGEALLOC [ 353.931017] Modules linked in: tcrypt(+) [ 353.931017] [ 353.931017] Pid: 4391, comm: modprobe Not tainted (2.6.26-rc4-00103-g1beee8d #7) [ 353.931017] EIP: 0060:[<c043feb0>] EFLAGS: 00010216 CPU: 0 [ 353.931017] EIP is at cts_cbc_encrypt+0x2f0/0x300 [ 353.931017] EAX: c1181f00 EBX: 00000010 ECX: c1002000 EDX: c113a600 [ 353.931017] ESI: cf3fb480 EDI: cbff8bc0 EBP: cbff8c7c ESP: cbff8b3c [ 353.931017] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 [ 353.931017] Process modprobe (pid: 4391, ti=cbff8000 task=cbecafa0 task.ti=cbff8000) [ 353.931017] Stack: 00000011 00000000 37318b74 39333034 c08a4261 cfae50b8 0000005a 00000008 [ 353.931017] c09b7160 cbff8b74 00000001 c11f7c80 cfae4c90 c11f7c80 cbff8bac c0189336 [ 353.931017] 00000001 6f772049 20646c75 656b696c 65687420 00000020 00000000 00000000 [ 353.931017] Call Trace: [ 353.931017] [<c0189336>] ? __slab_alloc+0x86/0x5d0 [ 353.931017] [<c0755579>] ? _spin_unlock_irqrestore+0x39/0x70 [ 353.931017] [<c0127bcb>] ? release_console_sem+0x1bb/0x1e0 [ 353.931017] [<c01884c1>] ? check_bytes_and_report+0x21/0xc0 [ 353.931017] [<c01881a3>] ? slab_pad_check+0x73/0x110 [ 353.931017] [<c01898e3>] ? __slab_free+0x63/0x2e0 [ 353.931017] [<c043ff9e>] ? crypto_cts_encrypt+0xde/0x100 [ 353.931017] [<c0433085>] ? setkey+0xc5/0xf0 [ 353.931017] [<c0433978>] ? async_encrypt+0x38/0x50 [ 353.931017] [<d0aab5a5>] ? test_cipher+0x215/0x840 [tcrypt] [ 353.931017] [<d0aaa55a>] ? test_hash+0x1fa/0x4f0 [tcrypt] [ 353.931017] [<d0abea40>] ? tcrypt_mod_init+0x1a40/0x1bf4 [tcrypt] [ 353.931017] [<c013ef6a>] ? blocking_notifier_call_chain+0x1a/0x20 [ 353.931017] [<c0150cfe>] ? sys_init_module+0xee/0x18e0 [ 353.931017] [<c0167e44>] ? unlock_page+0x24/0x30 [ 353.931017] [<c018ad10>] ? __kmalloc+0x0/0x100 [ 353.931017] [<c0103d6d>] ? sysenter_past_esp+0x6a/0xb1 [ 353.931017] ======================= [ 353.931017] Code: 0b eb fe 0f 0b eb fe 8d 74 26 00 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe 8d 74 26 00 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe 8d 74 26 00 <0f> 0b eb fe 8d b6 00 00 00 00 8d bf 00 00 00 00 55 89 e5 83 ec [ 353.931017] EIP: [<c043feb0>] cts_cbc_encrypt+0x2f0/0x300 SS:ESP 0068:cbff8b3c [ 353.963393] ---[ end trace c587ad3c4d33078a ]--- Some corresponding .config variables root@whiterabbit:~# grep _CTS /usr/src/linux/.config CONFIG_CRYPTO_CTS=y root@whiterabbit:~# grep _CBC /usr/src/linux/.config CONFIG_CRYPTO_CBC=y root@whiterabbit:~# grep _AES /usr/src/linux/.config CONFIG_CRYPTO_AES=y CONFIG_CRYPTO_AES_586=y Greetings, Eric -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
