Package: base Severity: important Tags:
-- System Information: Debian Release: 7.5 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: i386 (i686) Kernel: Linux 3.2.0-4-686-pae (SMP w/1 CPU core) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash System crashes when any program is trying to access multiple files in /dev/char folder. It may happen during parallel backup or anti-virus scan of entire file system Here is the script which can be used to reproduce the problem on ESXi 4.1.0 platform: ------- cut here ---- #!/bin/sh cd /dev/char for i in `ls` do wc $i & done -------- end -------- or wc /dev/226:0 & wc /dev/226:64 & NOTE: files must be opened simultaniously. In certain cases system freezes, in other - remains live. Syslog contains the following information: NOTE2: This bug was reproduced on freshly installed system without any third party software (vmware-tools wasn't installed either) Aug 20 17:37:11 debian7p5-32 kernel: [ 732.170152] [drm] width 640 Aug 20 17:37:11 debian7p5-32 kernel: [ 732.170156] [drm] height 480 Aug 20 17:37:11 debian7p5-32 kernel: [ 732.170158] [drm] bpp 32 Aug 20 17:37:11 debian7p5-32 kernel: [ 732.172975] [drm] Fifo max 0x00040000 min 0x00001000 cap 0x0000007f Aug 20 17:37:11 debian7p5-32 kernel: [ 732.183717] PM: Marking nosave pages: 000000000009f000 - 0000000000100000 Aug 20 17:37:11 debian7p5-32 kernel: [ 732.183720] PM: Basic memory bitmaps created Aug 20 17:37:11 debian7p5-32 kernel: [ 737.986119] PM: Basic memory bitmaps freed Aug 20 17:37:11 debian7p5-32 kernel: [ 738.045046] ------------[ cut here ]------------ Aug 20 17:37:11 debian7p5-32 kernel: [ 738.045230] kernel BUG at /build/linux-xMFgY8/linux-3.2.57/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c:903! Aug 20 17:37:11 debian7p5-32 kernel: [ 738.045423] invalid opcode: 0000 [#1] SMP Aug 20 17:37:11 debian7p5-32 kernel: [ 738.045569] Modules linked in: nfsd nfs nfs_acl auth_rpcgss fscache lockd sunrpc loop snd_pcm vmwgfx snd_page_alloc ttm snd_timer snd soundcore parport_pc parport coretemp vmw_balloon drm processor crc32c_intel thermal_sys psmouse ac evdev pcspkr serio_raw i2c_piix4 power_supply i2c_core shpchp container button ext4 crc16 jbd2 mbcache sr_mod cdrom sg ata_generic sd_mod crc_t10dif floppy pcnet32 mii ata_piix mptspi scsi_transport_spi mptscsih mptbase libata scsi_mod [last unloaded: scsi_wait_scan] Aug 20 17:37:11 debian7p5-32 kernel: [ 738.047473] Aug 20 17:37:11 debian7p5-32 kernel: [ 738.047557] Pid: 2617, comm: wc Not tainted 3.2.0-4-686-pae #1 Debian 3.2.57-3+deb7u2 VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform Aug 20 17:37:11 debian7p5-32 kernel: [ 738.047944] EIP: 0060:[<f849603b>] EFLAGS: 00010287 CPU: 0 Aug 20 17:37:11 debian7p5-32 kernel: [ 738.048116] EIP is at vmw_master_set+0x81/0x150 [vmwgfx] Aug 20 17:37:11 debian7p5-32 kernel: [ 738.048252] EAX: f75526c0 EBX: f7540000 ECX: 000010d1 EDX: 000010d1 Aug 20 17:37:11 debian7p5-32 kernel: [ 738.048397] ESI: f70c36c0 EDI: f7540420 EBP: f77b4a40 ESP: f73f5de8 Aug 20 17:37:11 debian7p5-32 kernel: [ 738.048542] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 Aug 20 17:37:11 debian7p5-32 kernel: [ 738.048679] Process wc (pid: 2617, ti=f73f4000 task=f73a49e0 task.ti=f73f4000) Aug 20 17:37:11 debian7p5-32 kernel: [ 738.048893] Stack: Aug 20 17:37:11 debian7p5-32 kernel: [ 738.048997] f7071f80 f77b4940 0102a33d f7253c00 f77b4a40 f7253c14 f8495fba f842e5cf Aug 20 17:37:11 debian7p5-32 kernel: [ 738.049419] f77b4a54 f72054f8 f71ce800 f72eac00 f843db84 f71ce800 f72054f8 ffffffed Aug 20 17:37:11 debian7p5-32 kernel: [ 738.049845] f842eda8 f7253c00 f72054f8 f750dd40 f71ce800 00000000 c10d03e3 00000000 Aug 20 17:37:11 debian7p5-32 kernel: [ 738.050267] Call Trace: Aug 20 17:37:11 debian7p5-32 kernel: [ 738.050380] [<f8495fba>] ? vmw_master_drop+0xec/0xec [vmwgfx] Aug 20 17:37:11 debian7p5-32 kernel: [ 738.050652] [<f842e5cf>] ? drm_open+0x22d/0x483 [drm] Aug 20 17:37:11 debian7p5-32 kernel: [ 738.050791] [<f842eda8>] ? drm_stub_open+0xbf/0x107 [drm] Aug 20 17:37:11 debian7p5-32 kernel: [ 738.050935] [<c10d03e3>] ? chrdev_open+0xf3/0x111 Aug 20 17:37:11 debian7p5-32 kernel: [ 738.051067] [<c10cc0b7>] ? __dentry_open+0x186/0x25f Aug 20 17:37:11 debian7p5-32 kernel: [ 738.051201] [<c10cce05>] ? nameidata_to_filp+0x3a/0x45 Aug 20 17:37:11 debian7p5-32 kernel: [ 738.051336] [<c10d02f0>] ? cdev_put+0x17/0x17 Aug 20 17:37:11 debian7p5-32 kernel: [ 738.051467] [<c10d6ec5>] ? do_last+0x4f8/0x513 Aug 20 17:37:11 debian7p5-32 kernel: [ 738.051596] [<c10d731c>] ? path_openat+0x236/0x28b Aug 20 17:37:11 debian7p5-32 kernel: [ 738.051729] [<c10d741a>] ? do_filp_open+0x23/0x5c Aug 20 17:37:11 debian7p5-32 kernel: [ 738.051862] [<c102a33d>] ? should_resched+0x5/0x1e Aug 20 17:37:11 debian7p5-32 kernel: [ 738.051995] [<c12c360a>] ? _cond_resched+0x5/0x18 Aug 20 17:37:11 debian7p5-32 kernel: [ 738.052127] [<c10cce64>] ? do_sys_open+0x54/0xcd Aug 20 17:37:11 debian7p5-32 kernel: [ 738.052258] [<c10ccefb>] ? sys_open+0x1e/0x23 Aug 20 17:37:11 debian7p5-32 kernel: [ 738.052387] [<c12c8e1f>] ? sysenter_do_call+0x12/0x28 Aug 20 17:37:11 debian7p5-32 kernel: [ 738.052520] Code: f8 e8 37 dc e2 c8 8b 93 dc 03 00 00 b8 2d 00 00 00 ef 42 30 c0 ef 89 f8 e8 9f db e2 c8 85 f6 74 57 8d 83 c0 26 01 00 39 c6 74 02 <0f> 0b 8b 04 24 31 d2 8b 48 04 89 f0 e8 61 e6 fb ff 85 c0 89 c7 Aug 20 17:37:11 debian7p5-32 kernel: [ 738.054557] EIP: [<f849603b>] vmw_master_set+0x81/0x150 [vmwgfx] SS:ESP 0068:f73f5de8 Aug 20 17:37:11 debian7p5-32 kernel: [ 738.054848] ---[ end trace 9855b7e20797c3d8 ]--- Aug 20 17:37:12 debian7p5-32 kernel: [ 739.436092] Program wc tried to access /dev/mem between ff000->103000. -- Kind Regards Oleg Buklanov -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". 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