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charset="us-ascii"; Format="flowed" Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net On 2022/10/27 17:12, Mukesh Ojha wrote: > commit 18ae8d12991b ("f2fs: show more DIO information in tracepoint") > introduces iocb field in 'f2fs_direct_IO_enter' trace event > And it only assigns the pointer and later it accesses its field > in trace print log. > > Unable to handle kernel paging request at virtual address ffffffc04cef3d30 > Mem abort info: > ESR = 0x96000007 > EC = 0x25: DABT (current EL), IL = 32 bits > > pc : trace_raw_output_f2fs_direct_IO_enter+0x54/0xa4 > lr : trace_raw_output_f2fs_direct_IO_enter+0x2c/0xa4 > sp : ffffffc0443cbbd0 > x29: ffffffc0443cbbf0 x28: ffffff8935b120d0 x27: ffffff8935b12108 > x26: ffffff8935b120f0 x25: ffffff8935b12100 x24: ffffff8935b110c0 > x23: ffffff8935b10000 x22: ffffff88859a936c x21: ffffff88859a936c > x20: ffffff8935b110c0 x19: ffffff8935b10000 x18: ffffffc03b195060 > x17: ffffff8935b11e76 x16: 00000000000000cc x15: ffffffef855c4f2c > x14: 0000000000000001 x13: 000000000000004e x12: ffff0000ffffff00 > x11: ffffffef86c350d0 x10: 00000000000010c0 x9 : 000000000fe0002c > x8 : ffffffc04cef3d28 x7 : 7f7f7f7f7f7f7f7f x6 : 0000000002000000 > x5 : ffffff8935b11e9a x4 : 0000000000006250 x3 : ffff0a00ffffff04 > x2 : 0000000000000002 x1 : ffffffef86a0a31f x0 : ffffff8935b10000 > Call trace: > trace_raw_output_f2fs_direct_IO_enter+0x54/0xa4 > print_trace_fmt+0x9c/0x138 > print_trace_line+0x154/0x254 > tracing_read_pipe+0x21c/0x380 > vfs_read+0x108/0x3ac > ksys_read+0x7c/0xec > __arm64_sys_read+0x20/0x30 > invoke_syscall+0x60/0x150 > el0_svc_common.llvm.1237943816091755067+0xb8/0xf8 > do_el0_svc+0x28/0xa0 > > Fix it by copying the required variables for printing and while at > it fix the similar issue at some other places in the same file. > > Fixes: 18ae8d12991b ("f2fs: show more DIO information in tracepoint") > Signed-off-by: Mukesh Ojha Reviewed-by: Chao Yu Thanks, _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 07F6DFA3741 for ; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2022/10/27 17:12, Mukesh Ojha wrote: > commit 18ae8d12991b ("f2fs: show more DIO information in tracepoint") > introduces iocb field in 'f2fs_direct_IO_enter' trace event > And it only assigns the pointer and later it accesses its field > in trace print log. > > Unable to handle kernel paging request at virtual address ffffffc04cef3d30 > Mem abort info: > ESR = 0x96000007 > EC = 0x25: DABT (current EL), IL = 32 bits > > pc : trace_raw_output_f2fs_direct_IO_enter+0x54/0xa4 > lr : trace_raw_output_f2fs_direct_IO_enter+0x2c/0xa4 > sp : ffffffc0443cbbd0 > x29: ffffffc0443cbbf0 x28: ffffff8935b120d0 x27: ffffff8935b12108 > x26: ffffff8935b120f0 x25: ffffff8935b12100 x24: ffffff8935b110c0 > x23: ffffff8935b10000 x22: ffffff88859a936c x21: ffffff88859a936c > x20: ffffff8935b110c0 x19: ffffff8935b10000 x18: ffffffc03b195060 > x17: ffffff8935b11e76 x16: 00000000000000cc x15: ffffffef855c4f2c > x14: 0000000000000001 x13: 000000000000004e x12: ffff0000ffffff00 > x11: ffffffef86c350d0 x10: 00000000000010c0 x9 : 000000000fe0002c > x8 : ffffffc04cef3d28 x7 : 7f7f7f7f7f7f7f7f x6 : 0000000002000000 > x5 : ffffff8935b11e9a x4 : 0000000000006250 x3 : ffff0a00ffffff04 > x2 : 0000000000000002 x1 : ffffffef86a0a31f x0 : ffffff8935b10000 > Call trace: > trace_raw_output_f2fs_direct_IO_enter+0x54/0xa4 > print_trace_fmt+0x9c/0x138 > print_trace_line+0x154/0x254 > tracing_read_pipe+0x21c/0x380 > vfs_read+0x108/0x3ac > ksys_read+0x7c/0xec > __arm64_sys_read+0x20/0x30 > invoke_syscall+0x60/0x150 > el0_svc_common.llvm.1237943816091755067+0xb8/0xf8 > do_el0_svc+0x28/0xa0 > > Fix it by copying the required variables for printing and while at > it fix the similar issue at some other places in the same file. > > Fixes: 18ae8d12991b ("f2fs: show more DIO information in tracepoint") > Signed-off-by: Mukesh Ojha Reviewed-by: Chao Yu Thanks,