Messages in this thread | | | Subject | Re: BUG when doing parallel NFS mounts (WAS: Re: Merge window closed: v2.6.19-rc1) | From | Peter Osterlund <> | Date | 08 Oct 2006 17:19:06 +0200 |
| |
Peter Osterlund <petero2@telia.com> writes:
> Linus Torvalds <torvalds@osdl.org> writes: > > > so please give it a good testing, and let's see if there are any > > regressions. > > If I run this one-liner script: > > while true ; do echo -n . ; mount p4:/home /p4home -ohard,intr & mount p4:/extra /p4extra -ohard,intr ; umount /p4home ; umount /p4extra ; done > > I get a BUG after a few iterations, see below. If I replace the '&' with > a ';' so the mounts happen one at a time, it works as expected. > > The NFS server runs kernel 2.6.17.11. > > ------------[ cut here ]------------ > kernel BUG at fs/nfs/client.c:352! > invalid opcode: 0000 [#1] > PREEMPT > Modules linked in: nfs radeon nfsd exportfs lockd autofs4 sunrpc michael_mic arc4 ecb blkcipher cryptomgr crypto_algapi ieee80211_crypt_tkip binfmt_misc dm_mirror dm_mod lp parport_pc parport pcmcia ehci_hcd joydev ohci1394 ieee1394 ohci_hcd bcm43xx yenta_socket snd_atiixp_modem rsrc_nonstatic ide_cd ieee80211softmac ieee80211 serio_raw 8250_pci pcmcia_core 8250 ieee80211_crypt pcspkr 8139too serial_core cdrom rtc usbcore > CPU: 0 > EIP: 0060:[<e0c836b5>] Not tainted VLI > EFLAGS: 00010202 (2.6.19-rc1 #53) > EIP is at nfs_create_server+0x9f1/0xa6e [nfs] > eax: 00000000 ebx: d5e11b40 ecx: ca01a000 edx: 00000000 > esi: 00000001 edi: ca01bdac ebp: ca01bd08 esp: ca01bbf8 > ds: 007b es: 007b ss: 0068 > Process mount (pid: 4052, ti=ca01a000 task=ca078030 task.ti=ca01a000) > Stack: ca01bc58 c1405c68 ca01bc2c c1405c40 c1405c40 00000296 c05cc5d0 ca078030 > ca07857c d6b03380 00000003 ca97704c ca97705c ca078030 00000000 ca01bc8c > c0135211 c01eea52 ca078570 00000246 ca01bc6c 00000246 00000002 ca845cb0 > Call Trace: > [<e0c899b2>] nfs_get_sb+0xbb/0x531 [nfs] > [<c0166416>] vfs_kern_mount+0x42/0x8c > [<c01664c4>] do_kern_mount+0x3b/0x4e > [<c017a8ca>] do_mount+0x25a/0x6a5 > [<c017adaa>] sys_mount+0x95/0xd4 > [<c01030c1>] sysenter_past_esp+0x56/0x8d > [<b7fa9410>] 0xb7fa9410 > ======================= > Code: 85 28 ff ff ff 89 44 24 04 c7 04 24 00 61 c9 e0 e8 16 8e 49 df 8b 9d 28 ff ff ff 31 d2 81 fb 00 f0 ff ff 0f 97 c2 e9 62 f9 ff ff <0f> 0b 60 01 40 50 c9 e0 e9 34 f9 ff ff 81 fa 60 ea 00 00 0f 86 > EIP: [<e0c836b5>] nfs_create_server+0x9f1/0xa6e [nfs] SS:ESP 0068:ca01bbf8
According to "git bisect", this is the bad commit:
commit 54ceac4515986030c2502960be620198dd8fe25b Author: David Howells <dhowells@redhat.com> Date: Tue Aug 22 20:06:13 2006 -0400
NFS: Share NFS superblocks per-protocol per-server per-FSID
The attached patch makes NFS share superblocks between mounts from the same server and FSID over the same protocol.
-- Peter Osterlund - petero2@telia.com http://web.telia.com/~u89404340 - 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/
| |