Hi, I hit a kernel panic on aarch64 several times recently, when I tried to do a fstests test. It's not related with fstests, due to I hit it when I boot the latest mainline linux kernel (HEAD=fc39fb56917bb3cb53e99560ca3612a84456ada2). The console log looks like related with crypto things, I'm not familar with it, so just send this email to linux-crypto@ and cc linux-kernel@. I hit this panic several times, I did nothing except building and installing the latest kernel and then boot it, then it crash directly on booting time. Looks like crash from: 183 static inline void sg_set_buf(struct scatterlist *sg, const void *buf, 184 unsigned int buflen) 185 { 186 #ifdef CONFIG_DEBUG_SG ==> 187 BUG_ON(!virt_addr_valid(buf)); 188 #endif 189 sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf)); 190 } If someone need, I can provide the big linux/.config file. Thanks, Zorro [1] ... [ 7.313015] registered taskstats version 1 [ 7.320132] Loading compiled-in X.509 certificates [ 7.347635] Loaded X.509 cert 'Build time autogenerated kernel key: ed2b2ec16b583dda991830c146172ef4fd4cd1cf' [ 7.522429] Demotion targets for Node 0: null [ 7.523941] debug_vm_pgtable: [debug_vm_pgtable ]: Validating architecture page table helpers [ 7.530102] page_owner is disabled [ 7.532083] Key type .fscrypt registered [ 7.533070] Key type fscrypt-provisioning registered [ 7.535734] Key type big_key registered [ 7.539305] Key type encrypted registered [ 7.541143] ima: secureboot mode disabled [ 7.542177] ima: No TPM chip found, activating TPM-bypass! [ 7.543508] Loading compiled-in module X.509 certificates [ 7.546783] Loaded X.509 cert 'Build time autogenerated kernel key: ed2b2ec16b583dda991830c146172ef4fd4cd1cf' [ 7.549427] ima: Allocated hash algorithm: sha256 [ 7.550827] ima: No architecture policies found [ 7.552706] evm: Initialising EVM extended attributes: [ 7.554011] evm: security.selinux [ 7.554842] evm: security.SMACK64 (disabled) [ 7.555877] evm: security.SMACK64EXEC (disabled) [ 7.557025] evm: security.SMACK64TRANSMUTE (disabled) [ 7.558367] evm: security.SMACK64MMAP (disabled) [ 7.559696] evm: security.apparmor (disabled) [ 7.560726] evm: security.ima [ 7.561451] evm: security.capability [ 7.562297] evm: HMAC attrs: 0x1 [ 7.631769] Running certificate verification RSA selftest [ 7.652546] ------------[ cut here ]------------ [ 7.653656] kernel BUG at include/linux/scatterlist.h:187! [ 7.654975] Internal error: Oops - BUG: 00000000f2000800 [#1] SMP [ 7.656386] Modules linked in: [ 7.657104] CPU: 3 UID: 0 PID: 176 Comm: cryptomgr_test Not tainted 6.12.0+ #1 [ 7.658822] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015 [ 7.660575] pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 7.662385] pc : sg_init_one+0x124/0x150 [ 7.663401] lr : sg_init_one+0x34/0x150 [ 7.664380] sp : ffff800083e87950 [ 7.665240] x29: ffff800083e87950 x28: 0000000000000048 x27: ffff3fc6f3aabc00 [ 7.667078] x26: ffff3fc6f3aabc48 x25: ffff800083e87a60 x24: 1fffe7f8de689885 [ 7.668895] x23: ffffb3207fb10fe0 x22: 0000000000000100 x21: ffffb3207fb7d880 [ 7.670774] x20: ffff800083e87a20 x19: 0000b3207fb7d880 x18: 0000000000000000 [ 7.672568] x17: ffffb3207de83630 x16: ffffb3207de8306c x15: ffffb3207de78cb0 [ 7.674370] x14: ffffb3207d916474 x13: ffffb3207cf38c70 x12: ffff7000107d0f48 [ 7.676156] x11: 1ffff000107d0f47 x10: ffff7000107d0f47 x9 : dfff800000000000 [ 7.677939] x8 : ffff800083e87a40 x7 : 0000000000000000 x6 : 0000000000000004 [ 7.679738] x5 : ffff800083e87a20 x4 : 0000000000000000 x3 : 1ffff000107d0f44 [ 7.681515] x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000600000000000 [ 7.683305] Call trace: [ 7.683926] sg_init_one+0x124/0x150 (P) [ 7.684919] sg_init_one+0x34/0x150 (L) [ 7.685890] rsassa_pkcs1_verify+0x288/0x980 [ 7.686976] test_sig_one+0x344/0x848 [ 7.687916] alg_test_sig+0xc0/0x168 [ 7.688859] alg_test+0x2e0/0xd58 [ 7.689715] cryptomgr_test+0x58/0x88 [ 7.690702] kthread+0x270/0x2f8 [ 7.691542] ret_from_fork+0x10/0x20 [ 7.692470] Code: a8c47bfd d50323bf d65f03c0 d4210000 (d4210000) [ 7.694042] ---[ end trace 0000000000000000 ]--- [ 7.695246] Kernel panic - not syncing: Oops - BUG: Fatal exception [ 7.696819] SMP: stopping secondary CPUs [ 7.697868] Kernel Offset: 0x331ffcf20000 from 0xffff800080000000 [ 7.699457] PHYS_OFFSET: 0xffffc03ac0000000 [ 7.700505] CPU features: 0x00,40000045,00801240,82004203 [ 7.701867] Memory Limit: none [ 7.702637] ---[ end Kernel panic - not syncing: Oops - BUG: Fatal exception ]---