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Tue, 01 Dec 2020 05:52:54 -0800 (PST) Date: Tue, 1 Dec 2020 14:52:52 +0100 From: Corentin Labbe To: Thomas Gleixner Subject: Re: crypto: sun4i-ss: error with kmap Message-ID: <20201201135252.GA9584@Red> References: <20201201130102.GA23461@Red> <87ft4phcyx.fsf@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <87ft4phcyx.fsf@nanos.tec.linutronix.de> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201201_085256_143825_DC4F1833 X-CRM114-Status: GOOD ( 19.18 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: herbert@gondor.apana.org.au, linux-kernel@vger.kernel.org, mripard@kernel.org, wens@csie.org, linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Dec 01, 2020 at 02:28:54PM +0100, Thomas Gleixner wrote: > On Tue, Dec 01 2020 at 14:01, Corentin Labbe wrote: > > +[ 213.050152] ------------[ cut here ]------------ > > +[ 213.050207] WARNING: CPU: 0 PID: 18430 at mm/highmem.c:581 kunmap_local_indexed+0x194/0x1d4 > > +[ 213.050214] Modules linked in: sm4_generic authenc vmac xcbc hmac streebog_generic sm3_generic sha3_generic crct10dif_generic crct10dif_common seed rmd320 rmd256 rmd160 rmd128 cts lzo lzo_compress salsa20_generic camellia_generic fcrypt pcbc tgr192 anubis wp512 khazad tea michael_mic arc4 cast6_generic cast5_generic cast_common deflate zlib_deflate sha512_generic cfb ofb serpent_generic lrw twofish_generic twofish_common blowfish_generic blowfish_common md4 > > +[ 213.050410] CPU: 0 PID: 18430 Comm: cryptsetup Not tainted 5.10.0-rc5-next-20201130-00059-gf7ecf0611042-dirty #242 > > +[ 213.050416] Hardware name: Allwinner sun7i (A20) Family > > +[ 213.050448] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) > > +[ 213.050465] [] (show_stack) from [] (dump_stack+0x98/0xac) > > +[ 213.050479] [] (dump_stack) from [] (__warn+0xc0/0xd8) > > +[ 213.050491] [] (__warn) from [] (warn_slowpath_fmt+0x64/0xc0) > > +[ 213.050505] [] (warn_slowpath_fmt) from [] (kunmap_local_indexed+0x194/0x1d4) > > +[ 213.050525] [] (kunmap_local_indexed) from [] (sg_miter_stop+0xb4/0x164) > > +[ 213.050541] [] (sg_miter_stop) from [] (sg_miter_next+0xc/0xe4) > > +[ 213.050560] [] (sg_miter_next) from [] (sun4i_ss_opti_poll+0x278/0x40c) > > +[ 213.050575] [] (sun4i_ss_opti_poll) from [] (sun4i_ss_cipher_poll+0x4f4/0x5e4) > > +[ 213.050590] [] (sun4i_ss_cipher_poll) from [] (crypto_skcipher_encrypt+0x38/0x5c) > > +[ 213.050604] [] (crypto_skcipher_encrypt) from [] (xts_encrypt+0x8c/0xd4) > > +[ 213.050617] [] (xts_encrypt) from [] (crypto_skcipher_encrypt+0x38/0x5c) > > +[ 213.050631] [] (crypto_skcipher_encrypt) from [] (skcipher_recvmsg+0x364/0x43c) > > +[ 213.050646] [] (skcipher_recvmsg) from [] (sock_read_iter+0xa8/0xf8) > > +[ 213.050663] [] (sock_read_iter) from [] (vfs_read+0x2b8/0x2d8) > > +[ 213.050676] [] (vfs_read) from [] (ksys_read+0xb0/0xe4) > > +[ 213.050688] [] (ksys_read) from [] (ret_fast_syscall+0x0/0x58) > > +[ 213.050695] Exception stack(0xc4d13fa8 to 0xc4d13ff0) > > +[ 213.050707] 3fa0: 00000006 b6f084d0 00000006 b47ff000 00010000 00000000 > > +[ 213.050718] 3fc0: 00000006 b6f084d0 00010000 00000003 00000030 beb6e9bc 00000010 beb6e9fc > > +[ 213.050727] 3fe0: b6e3609c beb6e958 b6cc8504 b6cc851c > > +[ 213.050735] ---[ end trace 915906e6b0e8a55d ]--- > > Hmm. No registers there. Can you apply the patch below so we can see the > address? > > Thanks, > > tglx > --- > diff --git a/mm/highmem.c b/mm/highmem.c > index b49364a306b8..240fc6e5bfb4 100644 > --- a/mm/highmem.c > +++ b/mm/highmem.c > @@ -571,8 +571,10 @@ void kunmap_local_indexed(void *vaddr) > * PAGE_OFFSET. Warn for all other addresses which are in > * the user space part of the virtual address space. > */ > - if (!kmap_high_unmap_local(addr)) > + if (!kmap_high_unmap_local(addr)) { > + pr_err("kunmap_local: vaddr %lx\n", (unsigned long) vaddr); > WARN_ON_ONCE(addr < PAGE_OFFSET); > + } > return; > } > The patch made the board too busy logging and fail to boot until the test. Regards _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel