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Subjectload_elf_interp()->padzero()->clear_user() + page_fault = hang.
Hi,

Interesting stack trace I got here on a 4way SMP machine by just running
ps -ef which hangs. Any ideas?

Stack traceback for pid 1078
EBP EIP Function(args)
0x40016000 0xc0127fe8 handle_mm_fault+0x204 (0xc7798a80, 0xe9d776a0,
0x40016848, 0x1, 0xd015c000)
kernel .text 0xc0100000 0xc0127de4
0xc01281d8
0xd015dbc8 0xc0115b42 do_page_fault+0x18a (0xd015dbd8, 0x2, 0x7b8, 0x1ee,
0x1ee)
kernel .text 0xc0100000 0xc01159b8
0xc0115fa0
0xc010c7c0 error_code+0x34
kernel .text 0xc0100000 0xc010c78c
0xc010c7c8
Interrupt registers:
eax = 0x00000000 ebx = 0x000007b8 ecx = 0x000001ee edx = 0x000001ee
esi = 0x00000000 edi = 0x40016848 esp = 0xd015dc0c eip = 0xc02270e7
ebp = 0xd015dc1c xss = 0x00000018 xcs = 0x00000010 eflags = 0x00010246
xds = 0x00000018 xes = 0x00000018 origeax = 0xffffffff &regs = 0xd015dbd8
0xc02270e7 clear_user+0x37 (0x40016848, 0x7b8)
kernel .text 0xc0100000 0xc02270b0
0xc02270fc
0xd015dc2c 0xc014f84e padzero+0x1e (0x40016848, 0x0)
kernel .text 0xc0100000 0xc014f830
0xc014f854
0xd015dc78 0xc014fdac load_elf_interp+0x24c (0xd015dda8, 0xf71050e0,
0xd015dd78, 0xc0302ca0, 0xc014ff20)
kernel .text 0xc0100000 0xc014fb60
0xc014fdfc
0xd015de10 0xc01507a7 load_elf_binary+0x887 (0xd015de68, 0xd015dfc4,
0xd015de68)
kernel .text 0xc0100000 0xc014ff20
0xc0150af8
0xd015de48 0xc0142918 search_binary_handler+0x68 (0xd015de68, 0xd015dfc4)
kernel .text 0xc0100000 0xc01428b0
0xc0142a60
0xd015df9c 0xc0142ba8 do_execve+0x148 (0xc972c000, 0x80f7bcc, 0x80d760c,
0xd015dfc4)
kernel .text 0xc0100000 0xc0142a60
0xc0142bfc
0xd015dfbc 0xc010af6f sys_execve+0x2f (0x80f7aac, 0x80f7bcc, 0x80d760c,
0x80f7aac, 0x80f7aac)
kernel .text 0xc0100000 0xc010af40
0xc010af9c
0xc010c68b system_call+0x33
kernel .text 0xc0100000 0xc010c658
0xc010c690



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