From nobody Fri Nov 10 20:32:47 2023 X-Original-To: current@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4SRr9Y3WGjz50Jm4 for ; Fri, 10 Nov 2023 20:32:49 +0000 (UTC) (envelope-from mm@FreeBSD.org) Received: from www541.your-server.de (www541.your-server.de [213.133.107.7]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4SRr9Y1mmPz4dm9 for ; Fri, 10 Nov 2023 20:32:49 +0000 (UTC) (envelope-from mm@FreeBSD.org) Authentication-Results: mx1.freebsd.org; none Received: from sslproxy04.your-server.de ([78.46.152.42]) by www541.your-server.de with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1r1YBM-000LzO-2T; Fri, 10 Nov 2023 21:32:48 +0100 Received: from [188.167.171.2] (helo=[10.0.9.225]) by sslproxy04.your-server.de with esmtpsa (TLSv1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1r1YBL-000Qtl-Ow; Fri, 10 Nov 2023 21:32:47 +0100 Message-ID: Date: Fri, 10 Nov 2023 21:32:47 +0100 List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@freebsd.org MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Martin Matuska Subject: Re: crash zfs_clone_range() To: Ronald Klop , current@freebsd.org References: <349700057.3452.1699611152405@localhost> Content-Language: en-US In-Reply-To: <349700057.3452.1699611152405@localhost> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Authenticated-Sender: martin@matuska.de X-Virus-Scanned: Clear (ClamAV 0.103.10/27089/Fri Nov 10 09:39:24 2023) X-Spamd-Bar: ---- X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:24940, ipnet:213.133.96.0/19, country:DE] X-Rspamd-Queue-Id: 4SRr9Y1mmPz4dm9 Hi Ronald, hitting the panic with a DEBUG kernel would be great and it would be very nice if I could somehow reproduce the panic. I have the option to rent an cheap arm64 virtual host at Hetzner so I could test that at an environment close to yours. Please try compiling a GENERIC-DEBUG kernel with: include GENERIC ident GENERIC-DEBUG options         INVARIANTS options         INVARIANT_SUPPORT options         WITNESS options         WITNESS_SKIPSPIN options         DEBUG_LOCKS options         DEBUG_VFS_LOCKS options         DIAGNOSTIC options         DDB Cheers, mm On 10. 11. 2023 11:12, Ronald Klop wrote: > Hi, > > Had this crash today on RPI4/15-CURRENT. > > FreeBSD rpi4 15.0-CURRENT FreeBSD 15.0-CURRENT #19 > main-b0203aaa46-dirty: Sat Nov  4 11:48:33 CET 2023 > ronald@rpi4:/home/ronald/dev/freebsd/obj/home/ronald/dev/freebsd/src/arm64.aarch64/sys/GENERIC-NODEBUG > arm64 > > $ sysctl -a | grep bclon > vfs.zfs.bclone_enabled: 1 > > I started a jail with poudriere to build a package. The jail uses null > mounts over ZFS. > > [root]# cu -s 115200 -l /dev/cuaU0 > Connected > > db> bt > Tracing pid 95213 tid 100438 td 0xffff0000e1e97900 > db_trace_self() at db_trace_self > db_stack_trace() at db_stack_trace+0x120 > db_command() at db_command+0x2e4 > db_command_loop() at db_command_loop+0x58 > db_trap() at db_trap+0x100 > kdb_trap() at kdb_trap+0x334 > handle_el1h_sync() at handle_el1h_sync+0x18 > --- exception, esr 0xf2000000 > kdb_enter() at kdb_enter+0x48 > vpanic() at vpanic+0x1dc > panic() at panic+0x48 > data_abort() at data_abort+0x2fc > handle_el1h_sync() at handle_el1h_sync+0x18 > --- exception, esr 0x96000004 > rms_rlock() at rms_rlock+0x1c > zfs_clone_range() at zfs_clone_range+0x68 > zfs_freebsd_copy_file_range() at zfs_freebsd_copy_file_range+0x19c > null_bypass() at null_bypass+0x118 > vn_copy_file_range() at vn_copy_file_range+0x18c > kern_copy_file_range() at kern_copy_file_range+0x36c > sys_copy_file_range() at sys_copy_file_range+0x8c > do_el0_sync() at do_el0_sync+0x634 > handle_el0_sync() at handle_el0_sync+0x48 > --- exception, esr 0x56000000 > > > Oh.. While typing this I rebooted the machine and it happened again. I > didn't start anything in particular although the machine runs some jails. > > x0: 0x00000000000000e0 >   x1: 0xffffa00090317a48 >   x2: 0xffffa000f79d4f00 >   x3: 0xffffa000c61a44a8 >   x4: 0xffff0000deefe460 ($d.2 + 0xdd776560) >   x5: 0xffffa001250e4c00 >   x6: 0xffff0000e54025b5 ($d.5 + 0xc) >   x7: 0x000000000000030a >   x8: 0xffff0000e1559000 ($d.2 + 0xdfdd1100) >   x9: 0x0000000000000001 >  x10: 0x0000000000000000 >  x11: 0x0000000000000001 >  x12: 0x0000000000000002 >  x13: 0x0000000000000000 >  x14: 0x0000000000000001 >  x15: 0x0000000000000000 >  x16: 0xffff0000016dce88 (__stop_set_modmetadata_set + 0x1310) >  x17: 0xffff0000004e0d44 (rms_rlock + 0x0) >  x18: 0xffff0000deefe280 ($d.2 + 0xdd776380) >  x19: 0x0000000000000000 >  x20: 0xffff0000deefe460 ($d.2 + 0xdd776560) >  x21: 0x7fffffffffffffff >  x22: 0xffffa00090317a48 >  x23: 0xffffa000f79d4f00 >  x24: 0xffffa001067ef910 >  x25: 0x00000000000000e0 >  x26: 0xffffa000158a8000 >  x27: 0x0000000000000000 >  x28: 0xffffa000158a8000 >  x29: 0xffff0000deefe280 ($d.2 + 0xdd776380) >   sp: 0xffff0000deefe280 >   lr: 0xffff000001623564 (zfs_clone_range + 0x6c) >  elr: 0xffff0000004e0d60 (rms_rlock + 0x1c) > spsr: 0x00000000a0000045 >  far: 0x0000000000000108 >  esr: 0x0000000096000004 > panic: data abort in critical section or under mutex > cpuid = 1 > time = 1699610885 > KDB: stack backtrace: > db_trace_self() at db_trace_self > db_trace_self_wrapper() at db_trace_self_wrapper+0x38 > vpanic() at vpanic+0x1a0 > panic() at panic+0x48 > data_abort() at data_abort+0x2fc > handle_el1h_sync() at handle_el1h_sync+0x18 > --- exception, esr 0x96000004 > rms_rlock() at rms_rlock+0x1c > zfs_clone_range() at zfs_clone_range+0x68 > zfs_freebsd_copy_file_range() at zfs_freebsd_copy_file_range+0x19c > null_bypass() at null_bypass+0x118 > vn_copy_file_range() at vn_copy_file_range+0x18c > kern_copy_file_range() at kern_copy_file_range+0x36c > sys_copy_file_range() at sys_copy_file_range+0x8c > do_el0_sync() at do_el0_sync+0x634 > handle_el0_sync() at handle_el0_sync+0x48 > --- exception, esr 0x56000000 > KDB: enter: panic > [ thread pid 3792 tid 100394 ] > Stopped at      kdb_enter+0x48: str     xzr, [x19, #768] > db> > > I'll keep the debugger open for a while. Can I type something for > additional info? > > Regards, > Ronald.