Date: Tue, 8 Dec 2020 19:49:19 +0100 From: Peter <pmc@citylink.dinoex.sub.org> To: Kristof Provost <kp@freebsd.org> Cc: freebsd-stable@freebsd.org Subject: Re: Panic: 12.2 fails to use VIMAGE jails Message-ID: <X8/Kr0td1cxI%2BP%2BV@gate.oper.dinoex.org> In-Reply-To: <DDDE7802-1C8C-4EB7-AA0C-DFCD7E5D2BAB@FreeBSD.org> References: <20201207125451.GA11406@gate.oper.dinoex.org> <39DBEA53-960F-4D70-86D7-847E6DFA437D@FreeBSD.org> <20201207233449.GA11025@gate.oper.dinoex.org> <DDDE7802-1C8C-4EB7-AA0C-DFCD7E5D2BAB@FreeBSD.org>
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On Tue, Dec 08, 2020 at 04:50:00PM +0100, Kristof Provost wrote: ! Yeah, the bug is not exclusive to epair but that=E2=80=99s where it=E2=80= =99s most easily ! seen. Ack. ! Try http://people.freebsd.org/~kp/0001-if-Fix-panic-when-destroying-vnet-= and-epair-simultan.patch Great, thanks a lot. Now I have bad news: when playing yoyo with the next-best three application jails (with all their installed stuff) it took about ten up and down's then I got this one: Fatal trap 12: page fault while in kernel mode cpuid =3D 1; apic id =3D 02 fault virtual address =3D 0x10 fault code =3D supervisor read data, page not present instruction pointer =3D 0x20:0xffffffff80aad73c stack pointer =3D 0x28:0xfffffe003f80e810 frame pointer =3D 0x28:0xfffffe003f80e810 code segment =3D base 0x0, limit 0xfffff, type 0x1b =3D DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags =3D interrupt enabled, resume, IOPL =3D 0 current process =3D 15486 (ifconfig) trap number =3D 12 panic: page fault cpuid =3D 1 time =3D 1607450838 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe003f80e= 4d0 vpanic() at vpanic+0x17b/frame 0xfffffe003f80e520 panic() at panic+0x43/frame 0xfffffe003f80e580 trap_fatal() at trap_fatal+0x391/frame 0xfffffe003f80e5e0 trap_pfault() at trap_pfault+0x4f/frame 0xfffffe003f80e630 trap() at trap+0x4cf/frame 0xfffffe003f80e740 calltrap() at calltrap+0x8/frame 0xfffffe003f80e740 --- trap 0xc, rip =3D 0xffffffff80aad73c, rsp =3D 0xfffffe003f80e810, rbp = =3D 0xfffffe003f80e810 --- ng_eiface_mediastatus() at ng_eiface_mediastatus+0xc/frame 0xfffffe003f80e8= 10 ifmedia_ioctl() at ifmedia_ioctl+0x174/frame 0xfffffe003f80e850 ifhwioctl() at ifhwioctl+0x639/frame 0xfffffe003f80e8d0 ifioctl() at ifioctl+0x448/frame 0xfffffe003f80e990 kern_ioctl() at kern_ioctl+0x275/frame 0xfffffe003f80e9f0 sys_ioctl() at sys_ioctl+0x101/frame 0xfffffe003f80eac0 amd64_syscall() at amd64_syscall+0x380/frame 0xfffffe003f80ebf0 fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe003f80ebf0 --- syscall (54, FreeBSD ELF64, sys_ioctl), rip =3D 0x800475b2a, rsp =3D 0x= 7fffffffe358, rbp =3D 0x7fffffffe450 --- Uptime: 9m51s Dumping 899 out of 3959 MB: I decided to give it a second try, and this is what I did: root@edge:/var/crash # jls JID IP Address Hostname Path 1 1*********** gate.***********.org /j/gate 3 1*********** raix.***********.org /j/raix 4 oper.***********.org /j/oper 5 admn.***********.org /j/admn 6 data.***********.org /j/data 7 conn.***********.org /j/conn 8 kerb.***********.org /j/kerb 9 tele.***********.org /j/tele 10 rail.***********.org /j/rail root@edge:/var/crash # service jail stop rail Stopping jails: rail. root@edge:/var/crash # service jail stop tele Stopping jails: tele. root@edge:/var/crash # service jail stop kerb Stopping jails: kerb. root@edge:/var/crash # jls JID IP Address Hostname Path 1 1*********** gate.***********.org /j/gate 3 1*********** raix.***********.org /j/raix 4 oper.***********.org /j/oper 5 admn.***********.org /j/admn 6 data.***********.org /j/data 7 conn.***********.org /j/conn root@edge:/var/crash # jls -d JID IP Address Hostname Path 1 1*********** gate.***********.org /j/gate 3 1*********** raix.***********.org /j/raix 4 oper.***********.org /j/oper 5 admn.***********.org /j/admn 6 data.***********.org /j/data 7 conn.***********.org /j/conn 9 tele.***********.org /j/tele 10 rail.***********.org /j/rail root@edge:/var/crash # service jail start kerb Starting jails:Fssh_packet_write_wait: Connection to 1*********** port 22: = Broken pipe Fatal trap 12: page fault while in kernel mode cpuid =3D 1; apic id =3D 02 fault virtual address =3D 0x0 fault code =3D supervisor read instruction, page not present instruction pointer =3D 0x20:0x0 stack pointer =3D 0x28:0xfffffe00540ea658 frame pointer =3D 0x28:0xfffffe00540ea670 code segment =3D base 0x0, limit 0xfffff, type 0x1b =3D DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags =3D interrupt enabled, resume, IOPL =3D 0 current process =3D 13420 (ifconfig) trap number =3D 12 panic: page fault cpuid =3D 1 time =3D 1607451910 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe00540ea= 310 vpanic() at vpanic+0x17b/frame 0xfffffe00540ea360 panic() at panic+0x43/frame 0xfffffe00540ea3c0 trap_fatal() at trap_fatal+0x391/frame 0xfffffe00540ea420 trap_pfault() at trap_pfault+0x4f/frame 0xfffffe00540ea470 trap() at trap+0x4cf/frame 0xfffffe00540ea580 calltrap() at calltrap+0x8/frame 0xfffffe00540ea580 --- trap 0xc, rip =3D 0, rsp =3D 0xfffffe00540ea658, rbp =3D 0xfffffe00540e= a670 --- ??() at 0/frame 0xfffffe00540ea670 sysctl_rtsock() at sysctl_rtsock+0x3d5/frame 0xfffffe00540ea8a0 sysctl_root_handler_locked() at sysctl_root_handler_locked+0x90/frame 0xfff= ffe00540ea8e0 sysctl_root() at sysctl_root+0x248/frame 0xfffffe00540ea960 userland_sysctl() at userland_sysctl+0x178/frame 0xfffffe00540eaa10 sys___sysctl() at sys___sysctl+0x5f/frame 0xfffffe00540eaac0 amd64_syscall() at amd64_syscall+0x380/frame 0xfffffe00540eabf0 fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe00540eabf0 --- syscall (202, FreeBSD ELF64, sys___sysctl), rip =3D 0x80047646a, rsp = =3D 0x7fffffffe378, rbp =3D 0x7fffffffe3b0 --- Uptime: 16m48s Dumping 938 out of 3959 MB: Sorry for the bad news. cheerio & best regards PMc
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