Bug#869658: linux: system freezes when dell-smm-hwmon reads fan speed
Here are the attachments, which I forgot to send in the previous email...
14:53:33.184354 execve("/bin/cat", ["cat", "/sys/class/hwmon/hwmon2/fan1_inp"...], [/* 43 vars */]) = 0
14:53:33.185278 brk(NULL) = 0x8059b000
14:53:33.185442 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
14:53:33.185579 mmap2(NULL, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb77d0000
14:53:33.185718 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
14:53:33.185847 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
14:53:33.185974 fstat64(3, {st_mode=S_IFREG|0644, st_size=88243, ...}) = 0
14:53:33.186155 mmap2(NULL, 88243, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb77ba000
14:53:33.186270 close(3) = 0
14:53:33.186388 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
14:53:33.186538 open("/lib/i386-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
14:53:33.186669 read(3, "\177ELF\1\1\1\3\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\360\203\1\0004\0\0\0"..., 512) = 512
14:53:33.186789 fstat64(3, {st_mode=S_IFREG|0755, st_size=1791908, ...}) = 0
14:53:33.186907 mmap2(NULL, 1800732, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7602000
14:53:33.187023 mprotect(0xb77b3000, 4096, PROT_NONE) = 0
14:53:33.187139 mmap2(0xb77b4000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1b1000) = 0xb77b4000
14:53:33.187289 mmap2(0xb77b7000, 10780, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb77b7000
14:53:33.187432 close(3) = 0
14:53:33.187593 set_thread_area({entry_number:-1, base_addr:0xb77d2800, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0 (entry_number:6)
14:53:33.187894 mprotect(0xb77b4000, 8192, PROT_READ) = 0
14:53:33.188110 mprotect(0x8000e000, 4096, PROT_READ) = 0
14:53:33.188243 mprotect(0xb77fa000, 4096, PROT_READ) = 0
14:53:33.188368 munmap(0xb77ba000, 88243) = 0
14:53:33.188750 brk(NULL) = 0x8059b000
14:53:33.188867 brk(0x805bc000) = 0x805bc000
14:53:33.189003 open("/usr/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
14:53:33.189161 fstat64(3, {st_mode=S_IFREG|0644, st_size=1679440, ...}) = 0
14:53:33.189294 mmap2(NULL, 1679440, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7467000
14:53:33.189439 close(3) = 0
14:53:33.189662 fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0
14:53:33.189795 open("/sys/class/hwmon/hwmon2/fan1_input", O_RDONLY|O_LARGEFILE) = 3
14:53:33.189965 fstat64(3, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
14:53:33.190136 fadvise64_64(3, 0, 0, POSIX_FADV_SEQUENTIAL) = 0
14:53:33.190261 mmap2(NULL, 139264, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7445000
14:53:33.190385 read(3, "2837\n", 131072) = 5
14:53:35.115446 write(1, "2837\n", 5) = 5
14:53:35.115603 read(3, "", 131072) = 0
14:53:35.115649 munmap(0xb7445000, 139264) = 0
14:53:35.115697 close(3) = 0
14:53:35.115747 close(1) = 0
14:53:35.115784 close(2) = 0
14:53:35.115827 exit_group(0) = ?
14:53:35.115963 +++ exited with 0 +++
14:53:47.963322 execve("/bin/cat", ["cat", "/sys/class/hwmon/hwmon2/fan2_inp"...], [/* 43 vars */]) = 0
14:53:47.964377 brk(NULL) = 0x80209000
14:53:47.964555 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
14:53:47.964697 mmap2(NULL, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb77ac000
14:53:47.964831 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
14:53:47.964960 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
14:53:47.965090 fstat64(3, {st_mode=S_IFREG|0644, st_size=88243, ...}) = 0
14:53:47.965208 mmap2(NULL, 88243, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7796000
14:53:47.965320 close(3) = 0
14:53:47.965435 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
14:53:47.965577 open("/lib/i386-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
14:53:47.965705 read(3, "\177ELF\1\1\1\3\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\360\203\1\0004\0\0\0"..., 512) = 512
14:53:47.965825 fstat64(3, {st_mode=S_IFREG|0755, st_size=1791908, ...}) = 0
14:53:47.965943 mmap2(NULL, 1800732, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb75de000
14:53:47.966108 mprotect(0xb778f000, 4096, PROT_NONE) = 0
14:53:47.966227 mmap2(0xb7790000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1b1000) = 0xb7790000
14:53:47.966381 mmap2(0xb7793000, 10780, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7793000
14:53:47.966525 close(3) = 0
14:53:47.966685 set_thread_area({entry_number:-1, base_addr:0xb77ae800, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0 (entry_number:6)
14:53:47.966955 mprotect(0xb7790000, 8192, PROT_READ) = 0
14:53:47.967087 mprotect(0x8006a000, 4096, PROT_READ) = 0
14:53:47.967210 mprotect(0xb77d6000, 4096, PROT_READ) = 0
14:53:47.967307 munmap(0xb7796000, 88243) = 0
14:53:47.967544 brk(NULL) = 0x80209000
14:53:47.967630 brk(0x8022a000) = 0x8022a000
14:53:47.967717 open("/usr/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
14:53:47.967803 fstat64(3, {st_mode=S_IFREG|0644, st_size=1679440, ...}) = 0
14:53:47.967879 mmap2(NULL, 1679440, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7443000
14:53:47.967958 close(3) = 0
14:53:47.968085 fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0
14:53:47.968160 open("/sys/class/hwmon/hwmon2/fan2_input", O_RDONLY|O_LARGEFILE) = 3
14:53:47.968255 fstat64(3, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
14:53:47.968330 fadvise64_64(3, 0, 0, POSIX_FADV_SEQUENTIAL) = 0
14:53:47.968399 mmap2(NULL, 139264, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7421000
14:53:47.968478 read(3, "2829\n", 131072) = 5
14:53:49.880874 write(1, "2829\n", 5) = 5
14:53:49.888455 read(3, "", 131072) = 0
14:53:49.888530 munmap(0xb7421000, 139264) = 0
14:53:49.888584 close(3) = 0
14:53:49.888642 close(1) = 0
14:53:49.888683 close(2) = 0
14:53:49.888738 exit_group(0) = ?
14:53:49.888877 +++ exited with 0 +++
14:54:34.526395 execve("/bin/cat", ["cat", "/sys/class/hwmon/hwmon2/fan3_inp"...], [/* 43 vars */]) = 0
14:54:34.526872 brk(NULL) = 0x8078d000
14:54:34.526955 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
14:54:34.527022 mmap2(NULL, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb76db000
14:54:34.527088 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
14:54:34.527159 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
14:54:34.527223 fstat64(3, {st_mode=S_IFREG|0644, st_size=88243, ...}) = 0
14:54:34.527282 mmap2(NULL, 88243, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb76c5000
14:54:34.527339 close(3) = 0
14:54:34.527398 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
14:54:34.527472 open("/lib/i386-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
14:54:34.527537 read(3, "\177ELF\1\1\1\3\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\360\203\1\0004\0\0\0"..., 512) = 512
14:54:34.527598 fstat64(3, {st_mode=S_IFREG|0755, st_size=1791908, ...}) = 0
14:54:34.527657 mmap2(NULL, 1800732, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb750d000
14:54:34.527714 mprotect(0xb76be000, 4096, PROT_NONE) = 0
14:54:34.527772 mmap2(0xb76bf000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1b1000) = 0xb76bf000
14:54:34.527845 mmap2(0xb76c2000, 10780, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb76c2000
14:54:34.527916 close(3) = 0
14:54:34.527994 set_thread_area({entry_number:-1, base_addr:0xb76dd800, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0 (entry_number:6)
14:54:34.528127 mprotect(0xb76bf000, 8192, PROT_READ) = 0
14:54:34.528191 mprotect(0x80042000, 4096, PROT_READ) = 0
14:54:34.528252 mprotect(0xb7705000, 4096, PROT_READ) = 0
14:54:34.528309 munmap(0xb76c5000, 88243) = 0
14:54:34.528501 brk(NULL) = 0x8078d000
14:54:34.528555 brk(0x807ae000) = 0x807ae000
14:54:34.528616 open("/usr/lib/locale/locale-archive", O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3
14:54:34.528687 fstat64(3, {st_mode=S_IFREG|0644, st_size=1679440, ...}) = 0
14:54:34.528747 mmap2(NULL, 1679440, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7372000
14:54:34.528814 close(3) = 0
14:54:34.528931 fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0
14:54:34.528991 open("/sys/class/hwmon/hwmon2/fan3_input", O_RDONLY|O_LARGEFILE) = 3
14:54:34.529074 fstat64(3, {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
14:54:34.529133 fadvise64_64(3, 0, 0, POSIX_FADV_SEQUENTIAL) = 0
14:54:34.529188 mmap2(NULL, 139264, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7350000
14:54:34.529253 read(3, "2829\n", 131072) = 5
14:54:36.440670 write(1, "2829\n", 5) = 5
14:54:36.440891 read(3, "", 131072) = 0
14:54:36.456186 munmap(0xb7350000, 139264) = 0
14:54:36.456327 close(3) = 0
14:54:36.456382 close(1) = 0
14:54:36.456420 close(2) = 0
14:54:36.456513 exit_group(0) = ?
14:54:36.456662 +++ exited with 0 +++
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