Date: Thu, 26 Nov 2009 15:21:42 +0100 From: Christian Nygaard <christiannygaard@gmail.com> To: bugbusters@FreeBSD.org Subject: I was unable to report a zfs bug, incorrect confirmation code Message-ID: <4d4321660911260621k1154c84cy17670dd5e7688ced@mail.gmail.com>
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Your Electronic Mail Address: christiannygaard@gmail.com Your Name: Christian Nygaard One line summary of the problem: zfs removing a zfs storage file causes kernel panic category: amd64 Which FreeBSD Release You Are Using: 8.0 Environment (output of "uname -a" on the problem machine): FreeBSD freebsd 8.0-RELEASE FreeBSD 8.0-RELEASE #0: Sat Nov 21 15:02:08 UTC= 2009 =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 root@mason.cse.buffalo.edu:/usr/= obj/usr/src/sys/GENERIC=A0 amd64 Full Description: Creating a zfs test pool on file based, then removing one of the underlying files and doing a zpool scrub causes kernel panic. How to repeat the problem: To reproduce create two files, then zpool tank pool on files # dd if=3Dtest1 count=3D100k bs=3D1k # dd if=3Dtest2 count=3D100k bs=3D1k # zpool create tank mirror /root/test1 /root/test2 now remove file /root/test2, this causes a kernel panic # rm /root/test2 # zpool scrub tank Kernel Panic =A0=A0=A0 Fatal trap 12: page fault while in kernel mode =A0=A0=A0=A0=A0=A0=A0=A0=A0 cpuid =3D 1; apic id =3D 01 =A0=A0=A0=A0=A0=A0=A0=A0=A0 fault virtual address=A0=A0 =3D 0x0 =A0=A0=A0=A0=A0=A0=A0=A0=A0 fault code=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0 =3D supervisor read data, page not present =A0=A0=A0=A0=A0=A0=A0=A0=A0 instruction pointer=A0=A0=A0=A0 =3D 0x20:0xffff= ffff810735bd =A0=A0=A0=A0=A0=A0=A0=A0=A0 stack pointer=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 =3D= 0x28:0xffffff803e778800 =A0=A0=A0=A0=A0=A0=A0=A0=A0 frame pointer=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 =3D= 0x28:0xffffff803e7788c0 =A0=A0=A0=A0=A0=A0=A0=A0=A0 code segment=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 = =3D base 0x0, limit 0xfffff, type 0x1b =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =A0=A0=A0=A0=A0=A0=A0=A0 =3D DPL 0, pres 1, long 1, def32 0, gran 1 =A0=A0=A0=A0=A0=A0=A0=A0=A0 processor eflags=A0=A0=A0=A0=A0=A0=A0 =3D inter= rupt enabled, resume, IOPL =3D 0 =A0=A0=A0=A0=A0=A0=A0=A0=A0 current process=A0=A0=A0=A0=A0=A0=A0=A0 =3D 36 = (txg_thread_enter) =A0=A0=A0=A0=A0=A0=A0=A0=A0 trap number=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0= =3D 12 =A0=A0=A0=A0=A0=A0=A0=A0=A0 panic: page fault =A0=A0=A0=A0=A0=A0=A0=A0=A0 cpuid =3D 1 =A0=A0=A0=A0=A0=A0=A0=A0=A0 Uptime: 3m31s =A0=A0=A0=A0=A0=A0=A0=A0=A0 Cannot dump. Device not defined or unavailable. =A0=A0=A0=A0=A0=A0=A0=A0=A0 Automatic reboot in 15 seconds - press a key on= the console to abort
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