lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Mon, 16 Jul 2007 21:13:16 +0200 From: Gabriel C <nix.or.die@...glemail.com> To: Tejun Heo <htejun@...il.com> CC: Satyam Sharma <satyam.sharma@...il.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Christoph Lameter <clameter@....com>, gregkh@...e.de Subject: Re: Oops while modprobing phy fixed module Gabriel C wrote: > Gabriel C wrote: > >> Tejun Heo wrote: >> >> >>> Satyam Sharma wrote: >>> >>> >>> >>>> On 7/16/07, Gabriel C <nix.or.die@...glemail.com> wrote: >>>> >>>> >>>> >>>>> Here the bisect result: >>>>> >>>>> 3007e997de91ec59af39a3f9c91595b31ae6e08b is first bad commit >>>>> commit 3007e997de91ec59af39a3f9c91595b31ae6e08b >>>>> Author: Tejun Heo <htejun@...il.com> >>>>> Date: Thu Jun 14 04:27:23 2007 +0900 >>>>> >>>>> sysfs: use sysfs_mutex to protect the sysfs_dirent tree >>>>> >>>>> >>>>> >>> Hmmm... Weird. The patch is supposed to make synchronization more >>> strict not less unless I've forgotten locking at some place. Gabriel, >>> can you please choose SLAB and enable CONFIG_DEBUG_SLAB and >>> DEBUG_SLAB_LEAK and see whether kernel complains about something? >>> >>> >>> >> Sure , give me some minutes. >> >> > > With DEBUG_SLAB_LEAK set ( and a lot other DEBUG options ) I get on > current HEAD > ( abce891a10559343d8ac9f79b46d78afdba63a40 ) an Oops too now , just the > box isn't died. > > Config and dmesg can be found there : > > http://194.231.229.228/2.6.22-gabce891a/ > > Here it is : > > [ 199.766878] Fixed PHY: Registered new driver > [ 199.768069] BUG: unable to handle kernel paging request at virtual address 6b6b6b87 > [ 199.768081] printing eip: > [ 199.768085] c01a0796 > [ 199.768089] *pde = 00000000 > [ 199.768098] Oops: 0000 [#1] > [ 199.768102] PREEMPT SMP DEBUG_PAGEALLOC > [ 199.768111] Modules linked in: fixed pc87360 hwmon_vid i2c_isa eeprom adm1021 uhci_hcd sr_mod shpchp pci_hotplug ohci_hcd iTCO_wdt iTCO_vendor_support intel_agp i82860_edac i2c_i801 ehci_hcd usbcore edac_mc cdrom agpgart 3c59x mii ext4dev jbd2 capability commoncap loop lp parport_pc parport > [ 199.768182] CPU: 1 > [ 199.768184] EIP: 0060:[<c01a0796>] Not tainted VLI > [ 199.768188] EFLAGS: 00210202 (2.6.22-gabce891a #27) > [ 199.768205] EIP is at __sysfs_remove_dir+0x20/0x64 > [ 199.768213] eax: 00000000 ebx: de583e04 ecx: e5113728 edx: 6b6b6b6b > [ 199.768222] esi: e5113738 edi: e5113728 ebp: de583e20 esp: de583e04 > [ 199.768230] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068 > [ 199.768238] Process modprobe (pid: 2067, ti=de582000 task=d79174c0 task.ti=de582000) > [ 199.768246] Stack: e5113728 00000000 00000000 00000000 d96bcce0 e5113728 00000000 de583e30 > [ 199.768271] c01a0810 d96bcce0 d96bcbf8 de583e3c c01db3eb d96bcce0 de583e50 c023e338 > [ 199.768298] d96bcbf8 d96bcbf8 e0b3eef0 de583e5c c023e365 d96bcbf0 de583e9c e8c472e8 > [ 199.768327] Call Trace: > [ 199.768333] [<c0104f86>] show_trace_log_lvl+0x1a/0x2f > [ 199.768348] [<c0105036>] show_stack_log_lvl+0x9b/0xa3 > [ 199.768359] [<c010520c>] show_registers+0x1ce/0x2de > [ 199.768370] [<c010543b>] die+0x11f/0x1f8 > [ 199.768380] [<c01137a9>] do_page_fault+0x438/0x507 > [ 199.768392] [<c031893a>] error_code+0x72/0x78 > [ 199.768405] [<c01a0810>] sysfs_remove_dir+0x2c/0x30 > [ 199.768415] [<c01db3eb>] kobject_del+0xf/0x19 > [ 199.768429] [<c023e338>] device_del+0x228/0x24a > [ 199.768442] [<c023e365>] device_unregister+0xb/0x15 > [ 199.768452] [<e8c472e8>] fixed_mdio_register_device+0x1dc/0x208 [fixed] > [ 199.768467] [<e8c4a01e>] fixed_init+0x1e/0x33 [fixed] > [ 199.768479] [<c013d290>] sys_init_module+0x1589/0x1677 > [ 199.768493] [<c0103f16>] sysenter_past_esp+0x5f/0x99 > [ 199.768503] ======================= > [ 199.768508] Code: e7 fd ff ff 83 c4 10 5b 5e 5d c3 55 89 e5 57 56 53 83 ec 10 89 c7 85 c0 74 4d 8d 5d e4 89 c2 89 d8 e8 1f fb ff ff 8d 77 10 eb 27 <8b> 42 1c 25 ff 00 00 00 74 1a 83 f8 02 74 15 8b 42 0c 89 06 c7 > [ 199.768675] EIP: [<c01a0796>] __sysfs_remove_dir+0x20/0x64 SS:ESP 0068:de583e04 > > > > Damn I forgot to paste the gdb output =) (gdb) l *__sysfs_remove_dir+0x20 0xc01a0796 is in __sysfs_remove_dir (fs/sysfs/dir.c:855). 850 sysfs_addrm_start(&acxt, dir_sd); 851 pos = &dir_sd->s_children; 852 while (*pos) { 853 struct sysfs_dirent *sd = *pos; 854 855 if (sysfs_type(sd) && sysfs_type(sd) != SYSFS_DIR) { 856 *pos = sd->s_sibling; 857 sd->s_sibling = NULL; 858 sysfs_remove_one(&acxt, sd); 859 } else - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists