Messages in this thread | | | Date | Sun, 7 Dec 2003 13:06:34 +0100 | From | Alex Riesen <> | Subject | Re: [PATCH] FIx 'noexec' behavior |
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> Also, you can try running mozilla with strace -f. Redirect the strace > output to a file with the -o option. Mozilla should work if you use an > updated RHL9 or FC1 installation. This will show where the program > tries to use mmap in a way conflicting with the patch.
I have a lot of processes frozen after applying the patch. I had not enough patience to wait until any of them finish, but I have traces from Alt+SysRq+T. Almost anything trying to access entries of /proc/<pid> is frozen: ls /proc/[0-9]*/, top, killall, ps. Also the stack of mozilla looks strange: 5a5a5a5a 5a5a5a5a...
start-stop-da D 00000001 0 16248 16229 (NOTLB) f6967e14 00000082 c18d2c80 00000001 00000003 3fd310d6 3aee6e31 c02cce00 f6967df8 c01776aa f7ff7104 4014839e c02cce00 f7010ce0 c18d2c80 0014fa7d 631c5675 000002cf eb16b310 f4178b30 eb16b310 fffeffff f6967e34 c01bcd27 Call Trace: [alloc_inode+30/337] alloc_inode+0x1e/0x151 [<c01776aa>] alloc_inode+0x1e/0x151 [rwsem_down_failed_common+157/342] rwsem_down_failed_common+0x9d/0x156 [<c01bcd27>] rwsem_down_failed_common+0x9d/0x156 [rwsem_down_read_failed+41/50] rwsem_down_read_failed+0x29/0x32 [<c01bca95>] rwsem_down_read_failed+0x29/0x32 [.text.lock.base+7/105] .text.lock.base+0x7/0x69 [<c018cad2>] .text.lock.base+0x7/0x69 [proc_pid_follow_link+104/128] proc_pid_follow_link+0x68/0x80 [<c018b102>] proc_pid_follow_link+0x68/0x80 [link_path_walk+1459/2479] link_path_walk+0x5b3/0x9af [<c016c64e>] link_path_walk+0x5b3/0x9af [kmem_cache_alloc+407/469] kmem_cache_alloc+0x197/0x1d5 [<c0147e7b>] kmem_cache_alloc+0x197/0x1d5 [__user_walk+64/85] __user_walk+0x40/0x55 [<c016cfa8>] __user_walk+0x40/0x55 [vfs_stat+30/85] vfs_stat+0x1e/0x55 [<c0167a88>] vfs_stat+0x1e/0x55 [sys_stat64+27/55] sys_stat64+0x1b/0x37 [<c0168173>] sys_stat64+0x1b/0x37 [syscall_call+7/11] syscall_call+0x7/0xb [<c010a437>] syscall_call+0x7/0xb
ls D 00000001 0 1426 1 1094 1235 (NOTLB) f0c87ed0 00200082 c18dac80 00000001 00000003 ebd7e000 f7ffd6b0 f0c87efc c010ae26 80000800 ebd7e000 ec949740 f7f65718 f0c86000 c18dac80 000140f5 1e0176a7 00000181 eb965940 f4178b30 eb965940 fffeffff f0c87ef0 c01bcd27 Call Trace: [apic_timer_interrupt+26/32] apic_timer_interrupt+0x1a/0x20 [<c010ae26>] apic_timer_interrupt+0x1a/0x20 [rwsem_down_failed_common+157/342] rwsem_down_failed_common+0x9d/0x156 [<c01bcd27>] rwsem_down_failed_common+0x9d/0x156 [dput+36/607] dput+0x24/0x25f [<c0175453>] dput+0x24/0x25f [rwsem_down_read_failed+41/50] rwsem_down_read_failed+0x29/0x32 [<c01bca95>] rwsem_down_read_failed+0x29/0x32 [.text.lock.base+7/105] .text.lock.base+0x7/0x69 [<c018cad2>] .text.lock.base+0x7/0x69 [proc_pid_readlink+139/306] proc_pid_readlink+0x8b/0x132 [<c018b268>] proc_pid_readlink+0x8b/0x132 [sys_readlink+136/140] sys_readlink+0x88/0x8c [<c0168032>] sys_readlink+0x88/0x8c [syscall_call+7/11] syscall_call+0x7/0xb [<c010a437>] syscall_call+0x7/0xb
killall D 00000001 0 1393 1 1225 1205 (NOTLB) e9e75dd8 00200082 c18d2c80 00000001 00000003 c1681730 c02cac00 000001f7 00104025 e9e75dec c0143516 c02cac00 00000000 00000000 c18d2c80 002f05a1 eae91d50 00000172 eb16a080 f4178b30 eb16a080 fffeffff e9e75df8 c01bcd27 Call Trace: [__alloc_pages+167/818] __alloc_pages+0xa7/0x332 3516>] __alloc_pages+0xa7/0x332 [rwsem_down_failed_common+157/342] rwsem_down_failed_common+0x9d/0x156 [<c01bcd27>] rwsem_down_failed_common+0x9d/0x156 [rwsem_down_read_failed+41/50] rwsem_down_read_failed+0x29/0x32 [<c01bca95>] rwsem_down_read_failed+0x29/0x32 [.text.lock.array+43/143] .text.lock.array+0x2b/0x8f [<c018e6e4>] .text.lock.array+0x2b/0x8f [do_page_fault+861/1416] do_page_fault+0x35d/0x588 [<c011da0e>] do_page_fault+0x35d/0x588 [pid_revalidate+62/234] pid_revalidate+0x3e/0xea [<c018b9be>] pid_revalidate+0x3e/0xea [dput+36/607] dput+0x24/0x25f [<c0175453>] dput+0x24/0x25f [buffered_rmqueue+237/404] buffered_rmqueue+0xed/0x194 [<c01433c8>] buffered_rmqueue+0xed/0x194 [__alloc_pages+167/818] __alloc_pages+0xa7/0x332 [<c0143516>] __alloc_pages+0xa7/0x332 [proc_info_read+83/350] proc_info_read+0x53/0x15e [<c018ad3d>] proc_info_read+0x53/0x15e [vfs_read+161/268] vfs_read+0xa1/0x10c [<c015dd49>] vfs_read+0xa1/0x10c [sys_read+63/93] sys_read+0x3f/0x5d [<c015dfb3>] sys_read+0x3f/0x5d [syscall_call+7/11] syscall_call+0x7/0xb [<c010a437>] syscall_call+0x7/0xb
ps D A4D7615A 0 1255 1 1235 1245 (NOTLB) eba73dd8 00200086 eb3ec6b0 a4d7615a 0000013d 00000745 eb63d000 00000000 00ffffff c02917a0 2000007b a4d7615a 0000013d eb3ec6b0 c18d2c80 00061ae7 a4db7273 0000013d eb3ecce0 f4178b30 eb3ecce0 fffeffff eba73df8 c01bcd27 Call Trace: [rwsem_down_failed_common+157/342] rwsem_down_failed_common+0x9d/0x156 [<c01bcd27>] rwsem_down_failed_common+0x9d/0x156 [rwsem_down_read_failed+41/50] rwsem_down_read_failed+0x29/0x32 [<c01bca95>] rwsem_down_read_failed+0x29/0x32 [.text.lock.array+43/143] .text.lock.array+0x2b/0x8f [<c018e6e4>] .text.lock.array+0x2b/0x8f [pty_write+463/465] pty_write+0x1cf/0x1d1 [<c01edb1b>] pty_write+0x1cf/0x1d1 [pid_revalidate+62/234] pid_revalidate+0x3e/0xea [<c018b9be>] pid_revalidate+0x3e/0xea [dput+36/607] dput+0x24/0x25f [<c0175453>] dput+0x24/0x25f [buffered_rmqueue+237/404] buffered_rmqueue+0xed/0x194 [<c01433c8>] buffered_rmqueue+0xed/0x194 [check_poison_obj+41/399] check_poison_obj+0x29/0x18f [<c0145e89>] check_poison_obj+0x29/0x18f [__alloc_pages+167/818] __alloc_pages+0xa7/0x332 [<c0143516>] __alloc_pages+0xa7/0x332 [proc_info_read+83/350] proc_info_read+0x53/0x15e [<c018ad3d>] proc_info_read+0x53/0x15e [filp_open+93/95] filp_open+0x5d/0x5f [<c015ce85>] filp_open+0x5d/0x5f [vfs_read+161/268] vfs_read+0xa1/0x10c [<c015dd49>] vfs_read+0xa1/0x10c [sys_read+63/93] sys_read+0x3f/0x5d [<c015dfb3>] sys_read+0x3f/0x5d [syscall_call+7/11] syscall_call+0x7/0xb [<c010a437>] syscall_call+0x7/0xb
top D 00000001 0 1235 1 1426 1255 (NOTLB) eb715dd8 00000082 c18dac80 00000001 00000003 eb715db8 c0145e89 eb67d4ec 0000016c eb715dc8 c0147d96 c0189d50 eb67d4ec eb67d4e8 c18dac80 004c5976 96f4de4f 00000134 eb965310 f4178b30 eb965310 fffeffff eb715df8 c01bcd27 Call Trace: [check_poison_obj+41/399] check_poison_obj+0x29/0x18f [<c0145e89>] check_poison_obj+0x29/0x18f [kmem_cache_alloc+178/469] kmem_cache_alloc+0xb2/0x1d5 [<c0147d96>] kmem_cache_alloc+0xb2/0x1d5 [proc_alloc_inode+30/115] proc_alloc_inode+0x1e/0x73 [<c0189d50>] proc_alloc_inode+0x1e/0x73 [rwsem_down_failed_common+157/342] rwsem_down_failed_common+0x9d/0x156 [<c01bcd27>] rwsem_down_failed_common+0x9d/0x156 [proc_alloc_inode+77/115] proc_alloc_inode+0x4d/0x73 [<c0189d7f>] proc_alloc_inode+0x4d/0x73 [rwsem_down_read_failed+41/50] rwsem_down_read_failed+0x29/0x32 [<c01bca95>] rwsem_down_read_failed+0x29/0x32 [.text.lock.array+43/143] .text.lock.array+0x2b/0x8f [<c018e6e4>] .text.lock.array+0x2b/0x8f [proc_pident_lookup+246/588] proc_pident_lookup+0xf6/0x24c [<c018c002>] proc_pident_lookup+0xf6/0x24c [real_lookup+219/258] real_lookup+0xdb/0x102 [<c016bdf9>] real_lookup+0xdb/0x102 [dput+36/607] dput+0x24/0x25f [<c0175453>] dput+0x24/0x25f [buffered_rmqueue+237/404] buffered_rmqueue+0xed/0x194 [<c01433c8>] buffered_rmqueue+0xed/0x194 [check_poison_obj+41/399] check_poison_obj+0x29/0x18f [<c0145e89>] check_poison_obj+0x29/0x18f [__alloc_pages+167/818] __alloc_pages+0xa7/0x332 [<c0143516>] __alloc_pages+0xa7/0x332 [proc_info_read+83/350] proc_info_read+0x53/0x15e [<c018ad3d>] proc_info_read+0x53/0x15e [filp_open+93/95] filp_open+0x5d/0x5f [<c015ce85>] filp_open+0x5d/0x5f [vfs_read+161/268] vfs_read+0xa1/0x10c [<c015dd49>] vfs_read+0xa1/0x10c [sys_read+63/93] sys_read+0x3f/0x5d [<c015dfb3>] sys_read+0x3f/0x5d [syscall_call+7/11] syscall_call+0x7/0xb [<c010a437>] syscall_call+0x7/0xb
mozilla-bin D 00000001 0 1225 1 1245 1393 (NOTLB) eba79df4 00000082 c18dac80 00000001 00000003 5a5a5a5a 5a5a5a5a 5a5a5a5a 5a5a5a5a 5a5a5a5a 5a5a5a5a 5a5a5a5a 5a5a5a5a 5a5a5a5a c18dac80 00008714 65e68354 00000130 f6efd940 f689d4dc f6efd940 fffeffff eba79e14 c01bcd27 Call Trace: [rwsem_down_failed_common+157/342] rwsem_down_failed_common+0x9d/0x156 [<c01bcd27>] rwsem_down_failed_common+0x9d/0x156 [do_page_fault+0/1416] do_page_fault+0x0/0x588 [<c011d6b1>] do_page_fault+0x0/0x588 [rwsem_down_read_failed+41/50] rwsem_down_read_failed+0x29/0x32 [<c01bca95>] rwsem_down_read_failed+0x29/0x32 [.text.lock.fault+27/131] .text.lock.fault+0x1b/0x83 [<c011dc54>] .text.lock.fault+0x1b/0x83 [buffered_rmqueue+237/404] buffered_rmqueue+0xed/0x194 [<c01433c8>] buffered_rmqueue+0xed/0x194 [pte_chain_alloc+143/148] pte_chain_alloc+0x8f/0x94 [<c015480b>] pte_chain_alloc+0x8f/0x94 [__alloc_pages+167/818] __alloc_pages+0xa7/0x332 [<c0143516>] __alloc_pages+0xa7/0x332 [__get_free_pages+34/69] __get_free_pages+0x22/0x45 [<c01437c3>] __get_free_pages+0x22/0x45 [do_page_fault+0/1416] do_page_fault+0x0/0x588 [<c011d6b1>] do_page_fault+0x0/0x588 [error_code+45/56] error_code+0x2d/0x38 [<c010aec1>] error_code+0x2d/0x38 [do_mmap_pgoff+83/1656] do_mmap_pgoff+0x53/0x678 [<c01511fc>] do_mmap_pgoff+0x53/0x678 [pipe_read+516/628] pipe_read+0x204/0x274 [<c016ac01>] pipe_read+0x204/0x274 [sys_mmap2+155/210] sys_mmap2+0x9b/0xd2 [<c01111a4>] sys_mmap2+0x9b/0xd2 [syscall_call+7/11] syscall_call+0x7/0xb [<c010a437>] syscall_call+0x7/0xb - 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/
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