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Bug#760037: nfs-kernel-server: nfs crashes in set_nfsv4_acl_one



On Sun, Aug 31, 2014 at 12:31:32 -0700, Steve Langasek wrote:

> On Sun, Aug 31, 2014 at 09:54:23AM +0200, Frank Denissen wrote:
> 
> > Executing debuild on a self-made package on a nfs4 mounted partition (normal pc, i386) provoked the error on the server (sheevaplug - armel
> > architecture). The build package contains a large zip file that is unzipped during the build phase.
> 
> > I tried to add no_acl to /etc/exports of the nfs4 share but this had no effect.
> > I exported/imported the partition as nfs. This solved the problem.
> 
> > The log files on the server contained the following information:
> > Aug 28 17:00:33 nijlpaard kernel: [  702.739829] Unable to handle kernel NULL pointer dereference at virtual address 00000008
> > Aug 28 17:00:33 nijlpaard kernel: [  702.748064] pgd = c0004000
> > Aug 28 17:00:33 nijlpaard kernel: [  702.750815] [00000008] *pgd=00000000
> > Aug 28 17:00:33 nijlpaard kernel: [  702.754518] Internal error: Oops: 5 [#1]
> > Aug 28 17:00:33 nijlpaard kernel: [  702.758453] Modules linked in: autofs4 act_police cls_basic cls_flow cls_fw cls_u32 sch_tbf sch_prio sch_htb sch_hfsc sch_ingress sch_sfq xt_statistic xt_CT xt_time xt_connlimit xt_realm xt_addrtype iptable_raw xt_comment xt_recent xt_policy ipt_ULOG ipt_REJECT ipt_REDIRECT ipt_NETMAP ipt_MASQUERADE ipt_ECN ipt_ecn ipt_CLUSTERIP ipt_ah xt_set ip_set nf_nat_tftp nf_nat_snmp_basic nf_conntrack_snmp nf_nat_sip nf_nat_pptp nf_nat_proto_gre nf_nat_irc nf_nat_h323 nf_nat_ftp nf_nat_amanda ts_kmp nf_conntrack_amanda nf_conntrack_sane nf_conntrack_tftp nf_conntrack_sip nf_conntrack_proto_udplite nf_conntrack_proto_sctp nf_conntrack_pptp nf_conntrack_proto_gre nf_conntrack_netlink nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_irc nf_conntrack_h323 nf_conntrack_ftp xt_TPROXY nf_defrag_ipv6 ip6_tables nf_tproxy_core xt_tcpmss xt_pkttype xt_physdev xt_owner xt_NFQUEUE xt_NFLOG nfnetlink_log xt_multiport xt_mark xt_mac xt_limit xt_length 
> >  xt_iprange xt_helper xt_hashlimit xt_DSC
> 
> This points to a kernel bug rather than a bug in the nfs-kernel-server
> package.
> 
> > Kernel: Linux 3.2.0-4-kirkwood
> > Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
> > Shell: /bin/sh linked to /bin/dash
> 
> Unfortunately, it is probably not useful to reassign this bug to the kernel
> package since this is an obsolete and no-longer-supported kernel version.
> 
Well, that's the current stable kernel, so I would hope it's not
no-longer-supported.  Also this bug looks like a dupe of 754420.

Cheers,
Julien

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