Date: 14 Oct 2001 11:59:35 -0700 From: "Gary W. Swearingen" <swear@blarg.net> To: FreeBSD-gnats-submit@freebsd.org Subject: misc/31266: System can be crashed with "ls -al /floppy". Message-ID: <ee8zeenj3c.zee@localhost.localdomain>
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>Number: 31266 >Category: misc >Synopsis: System can be crashed with "ls -al /floppy". >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Oct 14 12:10:03 PDT 2001 >Closed-Date: >Last-Modified: >Originator: Gary W. Swearingen >Release: FreeBSD 4.3-STABLE i386 (02'jun'01, I think) >Organization: none >Environment: i386, custom kernel otherwise working fine Jul 31 21:35:19 localhost /kernel: Origin = "AuthenticAMD" Id = 0x58c Stepping = 12 Jul 31 21:35:19 localhost /kernel: Features=0x8021bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,PGE,MMX> Jul 31 21:35:19 localhost /kernel: AMD Features=0x80000800<SYSCALL,3DNow!> Jul 31 21:35:20 localhost /kernel: real memory = 67108864 (65536K bytes) Jul 31 21:35:20 localhost /kernel: avail memory = 62042112 (60588K bytes) Jul 31 21:35:20 localhost /kernel: Preloaded elf kernel "kernel" at 0xc032a000. Jul 31 21:35:20 localhost /kernel: Preloaded userconfig_script "/boot/kernel.conf" at 0xc032a09c. Jul 31 21:35:20 localhost /kernel: K6-family MTRR support enabled (2 registers) Jul 31 21:35:20 localhost /kernel: md0: Malloc disk Jul 31 21:35:20 localhost /kernel: npx0: <math processor> on motherboard Jul 31 21:35:20 localhost /kernel: npx0: INT 16 interface Jul 31 21:35:20 localhost /kernel: pcib0: <Host to PCI bridge> on motherboard Jul 31 21:35:20 localhost /kernel: pci0: <PCI bus> on pcib0 Jul 31 21:35:20 localhost /kernel: pcib2: <VIA 82C598MVP (Apollo MVP3) PCI-PCI (AGP) bridge> at device 1.0 on pci0 Jul 31 21:35:20 localhost /kernel: pci1: <PCI bus> on pcib2 Jul 31 21:35:20 localhost /kernel: pci1: <NVidia Riva Vanta TNT2 graphics accelerator> at 0.0 Jul 31 21:35:20 localhost /kernel: isab0: <VIA 82C586 PCI-ISA bridge> at device 7.0 on pci0 Jul 31 21:35:20 localhost /kernel: isa0: <ISA bus> on isab0 Jul 31 21:35:20 localhost /kernel: atapci0: <VIA 82C586 ATA33 controller> port 0xe000-0xe00f at device 7.1 on pci0 Jul 31 21:35:20 localhost /kernel: ata0: at 0x1f0 irq 14 on atapci0 Jul 31 21:35:20 localhost /kernel: ata1: at 0x170 irq 15 on atapci0 Jul 31 21:35:20 localhost /kernel: pcib1: <Host to PCI bridge> on motherboard Jul 31 21:35:20 localhost /kernel: pci2: <PCI bus> on pcib1 Jul 31 21:35:20 localhost /kernel: fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0 Jul 31 21:35:20 localhost /kernel: fdc0: FIFO enabled, 8 bytes threshold Jul 31 21:35:20 localhost /kernel: fd0: <1440-KB 3.5" drive> on fdc0 drive 0 ================ >Description: My system crashed two (or three) times (once just after booting after the previous crash and before starting X server) when I used "ls -al /a" where /a was a read-only floppy mounted read/write. ================ >How-To-Repeat: -- Put 3 empty files on a 1.44 MB floppy. (M$FAT) -- Set slide on floppy to read-only position. -- Mount it r/w (-t msdos) on /a and then do: rm /a/* -- Prepare for crash and then do: ls -al /a I haven't yet tried this on 4.4. I've made a note to test this the next time I reboot. ================ >Fix: Workaround: Don't Do That (TM) >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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