Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 2 Mar 2003 09:04:25 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 2 Mar 2003 09:04:25 -0500 Received: from natsmtp01.webmailer.de ([192.67.198.81]:43738 "EHLO post.webmailer.de") by vger.kernel.org with ESMTP id ; Sun, 2 Mar 2003 09:03:30 -0500 Message-Id: <200303021413.PAA12289@post.webmailer.de> From: Arnd Bergmann Subject: Re: [PATCH] reduce large stack usage To: "Randy.Dunlap" , linux-kernel@vger.kernel.org Date: Sun, 02 Mar 2003 15:11:40 +0100 References: <20030301071007$18ea@gated-at.bofh.it> User-Agent: KNode/0.7.2 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7Bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2174 Lines: 77 Randy.Dunlap wrote: > This patch to 2.5.63 reduces stack usage in generate_default_upcase() > from 0x3d4 bytes to just noise (on x86). Since you are already fixing stack usage bugs in several places, maybe you are interested in this list. I have it from building 2.5.63 with allyesconfig on s390x with gcc-2.95.3. The twofish one is obviously broken, and I suspect huft_build/inflate_dynamic are the cause of the crashes I'm seeing during unpacking of initramfs. nfs4 and reiserfs look suspicious as well, but I've never used either of them on s390x, so I can't tell if they are likely to cause real problems. Arnd <>< 8832 twofish_setkey 1696 dohash 1680 huft_build 1680 huft_build 1544 aes_encrypt 1512 inflate_dynamic 1496 inflate_dynamic 1448 device_new_if 1360 inflate_fixed 1360 inflate_fixed 1344 br_ioctl_device 1312 elf_core_dump 1264 sctp_hash_digest 1256 aes_decrypt 1248 gss_pipe_downcall 1248 befs_warning 1248 befs_error 1248 befs_debug 1232 ciGetLeafPrefixKey 1216 nfs4_proc_rename 1192 nfs4_proc_link 1184 root_nfs_name 1184 conmode_default 1136 elf_core_dump 1128 nfsd4_proc_compound 1112 generate_default_upcase 1072 nlmclnt_proc 1016 do_open 1000 reiserfs_rename 992 reiserfs_delete_solid_item 992 nfs4_proc_symlink 992 nfs4_proc_mknod 992 nfs4_proc_mkdir 968 nlmclnt_reclaim 936 reiserfs_delete_item 912 reiserfs_cut_from_item 896 extract_entropy 888 sha512_transform 872 udf_add_entry 840 reiserfs_insert_item 832 tcp_v4_conn_request 832 reiserfs_paste_into_item 824 nfs4_proc_lookup 824 hfs_cat_move 816 udf_load_pvoldesc 816 semctl_main 792 sys_shmctl generated from: objdump --disassemble vmlinux | grep '$^0\|aghi.%r15$' | sed -e 's/^0.*<$.*$>:/\1/g' -e 's/^ .*-/: /g' | while read a b ; do if [ $a = : ] ; then echo $b $name fi name=$a done | sort -rn | head -n 40 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/