* sysfs: Kernel OOPS when install and remove modules @ 2013-03-11 2:17 Gao feng 2013-03-11 2:55 ` Greg KH 0 siblings, 1 reply; 5+ messages in thread From: Gao feng @ 2013-03-11 2:17 UTC (permalink / raw) To: linux-kernel@vger.kernel.org; +Cc: gregkh I get the below stack when I execute the shell program #!/bin/bash while :; do modprobe 8139too& rmmod 8139too& done I trust it is not the problem of 8139too, the other modules have the same problems too. Is this an already known problem? [ 53.328212] 8139too: 8139too Fast Ethernet driver 0.9.28 [ 53.368029] 8139too: module is already loaded [ 53.456339] 8139too: 8139too Fast Ethernet driver 0.9.28 [ 53.510611] 8139too: 8139too Fast Ethernet driver 0.9.28 [ 53.551713] ------------[ cut here ]------------ [ 53.551721] WARNING: at include/linux/kref.h:42 kobject_get+0x33/0x40() [ 53.551722] Hardware name: Bochs [ 53.551723] Modules linked in: 8139too(+) ebtable_nat ipt_MASQUERADE nf_conntrack_netbios_ns nf_conntrack_broadcast ip6table_mangle ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 iptable_nat nf_nat iptable_mangle nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ebtable_filter bnep ebtables bluetooth rfkill ip6table_filter ip6_tables be2iscsi iscsi_boot_sysfs bnx2i cnic uio cxgb4i cxgb4 cxgb3i cxgb3 mdio libcxgbi ib_iser rdma_cm ib_addr iw_cm ib_cm ib_sa ib_mad ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm snd_page_alloc snd_timer microcode snd i2c_piix4 virtio_balloon 8139cp soundcore mii i2c_core uinput [last unloaded: 8139too] [ 53.551757] Pid: 1158, comm: modprobe Not tainted 3.6.10-4.fc18.x86_64 #1 [ 53.551758] Call Trace: [ 53.551763] [<ffffffff8105c8df>] warn_slowpath_common+0x7f/0xc0 [ 53.551766] [<ffffffff8105c93a>] warn_slowpath_null+0x1a/0x20 [ 53.551768] [<ffffffff812de3a3>] kobject_get+0x33/0x40 [ 53.551770] [<ffffffff812df1c0>] kset_find_obj+0x70/0x80 [ 53.551774] [<ffffffff810bfb38>] sys_init_module+0x1878/0x21f0 [ 53.551776] [<ffffffff812fb480>] ? ddebug_proc_open+0xd0/0xd0 [ 53.551780] [<ffffffff8162bae9>] system_call_fastpath+0x16/0x1b [ 53.551781] ---[ end trace 21e295d38d313e02 ]--- [ 53.551783] 8139too: module is already loaded [ 53.581586] BUG: unable to handle kernel paging request at ffffffffa02f666c [ 53.581592] IP: [<ffffffff812de546>] kobject_del+0x16/0x40 [ 53.581595] PGD 1c0d067 PUD 1c11063 PMD 3a085067 PTE 0 [ 53.581596] Oops: 0002 [#1] SMP [ 53.581616] Modules linked in: 8139too(+) ebtable_nat ipt_MASQUERADE nf_conntrack_netbios_ns nf_conntrack_broadcast ip6table_mangle ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 iptable_nat nf_nat iptable_mangle nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ebtable_filter bnep ebtables bluetooth rfkill ip6table_filter ip6_tables be2iscsi iscsi_boot_sysfs bnx2i cnic uio cxgb4i cxgb4 cxgb3i cxgb3 mdio libcxgbi ib_iser rdma_cm ib_addr iw_cm ib_cm ib_sa ib_mad ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm snd_page_alloc snd_timer microcode snd i2c_piix4 virtio_balloon 8139cp soundcore mii i2c_core uinput [last unloaded: 8139too] [ 53.581619] CPU 0 [ 53.581619] Pid: 1158, comm: modprobe Tainted: G W 3.6.10-4.fc18.x86_64 #1 Bochs Bochs [ 53.581621] RIP: 0010:[<ffffffff812de546>] [<ffffffff812de546>] kobject_del+0x16/0x40 [ 53.581622] RSP: 0018:ffff88003d747de8 EFLAGS: 00010296 [ 53.581623] RAX: 0000000000002000 RBX: ffffffffa02f6630 RCX: 0000000000000036 [ 53.581624] RDX: ffff88003ab738d8 RSI: ffff88003da87448 RDI: ffff880036f7de70 [ 53.581624] RBP: ffff88003d747df8 R08: 0000000000000000 R09: ffff88003fbe8fe8 [ 53.581625] R10: 000000000000003c R11: 0000000000000000 R12: ffffffff81c2fba0 [ 53.581625] R13: ffff88003caf1b48 R14: ffffffffa02f6630 R15: 00000000ffffffea [ 53.581628] FS: 00007ff06f76d740(0000) GS:ffff88003fc00000(0000) knlGS:0000000000000000 [ 53.581629] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 53.581630] CR2: ffffffffa02f666c CR3: 0000000039f3f000 CR4: 00000000000006f0 [ 53.581634] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.581639] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 53.581640] Process modprobe (pid: 1158, threadinfo ffff88003d746000, task ffff88003c52dc40) [ 53.581640] Stack: [ 53.581642] ffff88003d747e48 ffffffffa02f6630 ffff88003d747e28 ffffffff812de5d2 [ 53.581643] ffff88003d747e58 ffffffffa02f6630 ffffffffa00635f8 ffffffffa0063818 [ 53.581644] ffff88003d747e48 ffffffff812de47b 000000000000000a ffffffffa00635e0 [ 53.581645] Call Trace: [ 53.581648] [<ffffffff812de5d2>] kobject_cleanup+0x62/0x1b0 [ 53.581650] [<ffffffff812de47b>] kobject_put+0x2b/0x60 [ 53.581653] [<ffffffff810c01bb>] sys_init_module+0x1efb/0x21f0 [ 53.581655] [<ffffffff812fb480>] ? ddebug_proc_open+0xd0/0xd0 [ 53.581658] [<ffffffff8162bae9>] system_call_fastpath+0x16/0x1b [ 53.581670] Code: ff ff ff 48 8b 5d f0 4c 8b 65 f8 c9 c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 53 48 89 fb 48 83 ec 08 48 85 ff 74 22 e8 aa 48 f2 ff <80> 63 3c fd 48 89 df e8 7e ff ff ff 48 8b 7b 18 e8 f5 fe ff ff [ 53.581671] RIP [<ffffffff812de546>] kobject_del+0x16/0x40 [ 53.581672] RSP <ffff88003d747de8> [ 53.581672] CR2: ffffffffa02f666c [ 53.581674] ---[ end trace 21e295d38d313e03 ]--- ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: sysfs: Kernel OOPS when install and remove modules 2013-03-11 2:17 sysfs: Kernel OOPS when install and remove modules Gao feng @ 2013-03-11 2:55 ` Greg KH 2013-03-11 2:59 ` Gao feng 2013-03-11 4:58 ` Hillf Danton 0 siblings, 2 replies; 5+ messages in thread From: Greg KH @ 2013-03-11 2:55 UTC (permalink / raw) To: Gao feng; +Cc: linux-kernel@vger.kernel.org On Mon, Mar 11, 2013 at 10:17:13AM +0800, Gao feng wrote: > I get the below stack when I execute the shell program > > #!/bin/bash > > while :; > do > modprobe 8139too& > rmmod 8139too& > done > > I trust it is not the problem of 8139too, the other modules have the same problems too. > Is this an already known problem? > > [ 53.328212] 8139too: 8139too Fast Ethernet driver 0.9.28 > [ 53.368029] 8139too: module is already loaded > [ 53.456339] 8139too: 8139too Fast Ethernet driver 0.9.28 > [ 53.510611] 8139too: 8139too Fast Ethernet driver 0.9.28 > [ 53.551713] ------------[ cut here ]------------ > [ 53.551721] WARNING: at include/linux/kref.h:42 kobject_get+0x33/0x40() > [ 53.551722] Hardware name: Bochs > [ 53.551723] Modules linked in: 8139too(+) ebtable_nat ipt_MASQUERADE nf_conntrack_netbios_ns nf_conntrack_broadcast ip6table_mangle ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 iptable_nat nf_nat > iptable_mangle nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ebtable_filter bnep ebtables bluetooth rfkill ip6table_filter ip6_tables be2iscsi iscsi_boot_sysfs bnx2i cnic uio cxgb4i cxgb4 > cxgb3i cxgb3 mdio libcxgbi ib_iser rdma_cm ib_addr iw_cm ib_cm ib_sa ib_mad ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device > snd_pcm snd_page_alloc snd_timer microcode snd i2c_piix4 virtio_balloon 8139cp soundcore mii i2c_core uinput [last unloaded: 8139too] > [ 53.551757] Pid: 1158, comm: modprobe Not tainted 3.6.10-4.fc18.x86_64 #1 Does this happen on a kernel.org kernel release? There's nothing I can do with a fedora kernel, sorry. greg k-h ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: sysfs: Kernel OOPS when install and remove modules 2013-03-11 2:55 ` Greg KH @ 2013-03-11 2:59 ` Gao feng 2013-03-11 4:58 ` Hillf Danton 1 sibling, 0 replies; 5+ messages in thread From: Gao feng @ 2013-03-11 2:59 UTC (permalink / raw) To: Greg KH; +Cc: linux-kernel@vger.kernel.org On 2013/03/11 10:55, Greg KH wrote: > On Mon, Mar 11, 2013 at 10:17:13AM +0800, Gao feng wrote: >> I get the below stack when I execute the shell program >> >> #!/bin/bash >> >> while :; >> do >> modprobe 8139too& >> rmmod 8139too& >> done >> >> I trust it is not the problem of 8139too, the other modules have the same problems too. >> Is this an already known problem? >> >> [ 53.328212] 8139too: 8139too Fast Ethernet driver 0.9.28 >> [ 53.368029] 8139too: module is already loaded >> [ 53.456339] 8139too: 8139too Fast Ethernet driver 0.9.28 >> [ 53.510611] 8139too: 8139too Fast Ethernet driver 0.9.28 >> [ 53.551713] ------------[ cut here ]------------ >> [ 53.551721] WARNING: at include/linux/kref.h:42 kobject_get+0x33/0x40() >> [ 53.551722] Hardware name: Bochs >> [ 53.551723] Modules linked in: 8139too(+) ebtable_nat ipt_MASQUERADE nf_conntrack_netbios_ns nf_conntrack_broadcast ip6table_mangle ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 iptable_nat nf_nat >> iptable_mangle nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ebtable_filter bnep ebtables bluetooth rfkill ip6table_filter ip6_tables be2iscsi iscsi_boot_sysfs bnx2i cnic uio cxgb4i cxgb4 >> cxgb3i cxgb3 mdio libcxgbi ib_iser rdma_cm ib_addr iw_cm ib_cm ib_sa ib_mad ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device >> snd_pcm snd_page_alloc snd_timer microcode snd i2c_piix4 virtio_balloon 8139cp soundcore mii i2c_core uinput [last unloaded: 8139too] >> [ 53.551757] Pid: 1158, comm: modprobe Not tainted 3.6.10-4.fc18.x86_64 #1 > > Does this happen on a kernel.org kernel release? > Yes,of course,Maybe you can try the shell program, it's easy to reproduce. Thanks > There's nothing I can do with a fedora kernel, sorry. > > greg k-h > ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: sysfs: Kernel OOPS when install and remove modules 2013-03-11 2:55 ` Greg KH @ 2013-03-11 4:58 ` Hillf Danton 2013-03-11 4:58 ` Hillf Danton 1 sibling, 0 replies; 5+ messages in thread From: Hillf Danton @ 2013-03-11 4:58 UTC (permalink / raw) To: Greg KH, Linux-MM; +Cc: Gao feng, linux-kernel@vger.kernel.org On Mon, Mar 11, 2013 at 10:55 AM, Greg KH <gregkh@linuxfoundation.org> wrote: > On Mon, Mar 11, 2013 at 10:17:13AM +0800, Gao feng wrote: >> I get the below stack when I execute the shell program >> >> #!/bin/bash >> >> while :; >> do >> modprobe 8139too& >> rmmod 8139too& >> done >> >> I trust it is not the problem of 8139too, the other modules have the same problems too. >> Is this an already known problem? >> >> [ 53.328212] 8139too: 8139too Fast Ethernet driver 0.9.28 >> [ 53.368029] 8139too: module is already loaded >> [ 53.456339] 8139too: 8139too Fast Ethernet driver 0.9.28 >> [ 53.510611] 8139too: 8139too Fast Ethernet driver 0.9.28 >> [ 53.551713] ------------[ cut here ]------------ >> [ 53.551721] WARNING: at include/linux/kref.h:42 kobject_get+0x33/0x40() >> [ 53.551722] Hardware name: Bochs >> [ 53.551723] Modules linked in: 8139too(+) ebtable_nat ipt_MASQUERADE nf_conntrack_netbios_ns nf_conntrack_broadcast ip6table_mangle ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 iptable_nat nf_nat >> iptable_mangle nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ebtable_filter bnep ebtables bluetooth rfkill ip6table_filter ip6_tables be2iscsi iscsi_boot_sysfs bnx2i cnic uio cxgb4i cxgb4 >> cxgb3i cxgb3 mdio libcxgbi ib_iser rdma_cm ib_addr iw_cm ib_cm ib_sa ib_mad ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device >> snd_pcm snd_page_alloc snd_timer microcode snd i2c_piix4 virtio_balloon 8139cp soundcore mii i2c_core uinput [last unloaded: 8139too] >> [ 53.551757] Pid: 1158, comm: modprobe Not tainted 3.6.10-4.fc18.x86_64 #1 > > Does this happen on a kernel.org kernel release? > > There's nothing I can do with a fedora kernel, sorry. > The comment says /** * kref_put - decrement refcount for object. * @kref: object. * @release: pointer to the function that will clean up the object when the * last reference to the object is released. * This pointer is required, and it is not acceptable to pass kfree * in as this function. If the caller does pass kfree to this * function, you will be publicly mocked mercilessly by the kref * maintainer, and anyone else who happens to notice it. You have * been warned. * * Decrement the refcount, and if 0, call release(). * Return 1 if the object was removed, otherwise return 0. Beware, if this * function returns 0, you still can not count on the kref from remaining in * memory. Only use the return value if you want to see if the kref is now * gone, not present. */ and the release callback is called too late since we have to /* remove the kobject from its kset's list */ even if refcount drops to zero. Hillf -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a> ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: sysfs: Kernel OOPS when install and remove modules @ 2013-03-11 4:58 ` Hillf Danton 0 siblings, 0 replies; 5+ messages in thread From: Hillf Danton @ 2013-03-11 4:58 UTC (permalink / raw) To: Greg KH, Linux-MM; +Cc: Gao feng, linux-kernel@vger.kernel.org On Mon, Mar 11, 2013 at 10:55 AM, Greg KH <gregkh@linuxfoundation.org> wrote: > On Mon, Mar 11, 2013 at 10:17:13AM +0800, Gao feng wrote: >> I get the below stack when I execute the shell program >> >> #!/bin/bash >> >> while :; >> do >> modprobe 8139too& >> rmmod 8139too& >> done >> >> I trust it is not the problem of 8139too, the other modules have the same problems too. >> Is this an already known problem? >> >> [ 53.328212] 8139too: 8139too Fast Ethernet driver 0.9.28 >> [ 53.368029] 8139too: module is already loaded >> [ 53.456339] 8139too: 8139too Fast Ethernet driver 0.9.28 >> [ 53.510611] 8139too: 8139too Fast Ethernet driver 0.9.28 >> [ 53.551713] ------------[ cut here ]------------ >> [ 53.551721] WARNING: at include/linux/kref.h:42 kobject_get+0x33/0x40() >> [ 53.551722] Hardware name: Bochs >> [ 53.551723] Modules linked in: 8139too(+) ebtable_nat ipt_MASQUERADE nf_conntrack_netbios_ns nf_conntrack_broadcast ip6table_mangle ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 iptable_nat nf_nat >> iptable_mangle nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ebtable_filter bnep ebtables bluetooth rfkill ip6table_filter ip6_tables be2iscsi iscsi_boot_sysfs bnx2i cnic uio cxgb4i cxgb4 >> cxgb3i cxgb3 mdio libcxgbi ib_iser rdma_cm ib_addr iw_cm ib_cm ib_sa ib_mad ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device >> snd_pcm snd_page_alloc snd_timer microcode snd i2c_piix4 virtio_balloon 8139cp soundcore mii i2c_core uinput [last unloaded: 8139too] >> [ 53.551757] Pid: 1158, comm: modprobe Not tainted 3.6.10-4.fc18.x86_64 #1 > > Does this happen on a kernel.org kernel release? > > There's nothing I can do with a fedora kernel, sorry. > The comment says /** * kref_put - decrement refcount for object. * @kref: object. * @release: pointer to the function that will clean up the object when the * last reference to the object is released. * This pointer is required, and it is not acceptable to pass kfree * in as this function. If the caller does pass kfree to this * function, you will be publicly mocked mercilessly by the kref * maintainer, and anyone else who happens to notice it. You have * been warned. * * Decrement the refcount, and if 0, call release(). * Return 1 if the object was removed, otherwise return 0. Beware, if this * function returns 0, you still can not count on the kref from remaining in * memory. Only use the return value if you want to see if the kref is now * gone, not present. */ and the release callback is called too late since we have to /* remove the kobject from its kset's list */ even if refcount drops to zero. Hillf ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2013-03-11 4:58 UTC | newest] Thread overview: 5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2013-03-11 2:17 sysfs: Kernel OOPS when install and remove modules Gao feng 2013-03-11 2:55 ` Greg KH 2013-03-11 2:59 ` Gao feng 2013-03-11 4:58 ` Hillf Danton 2013-03-11 4:58 ` Hillf Danton
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