Red Hat Bugzilla – Bug 586482
ATIIXP IDE driver reuses ide_lock unsafely
Last modified: 2011-02-14 10:06:21 EST
+++ This bug was initially created as a clone of Bug #216289 +++ +++ This bug was initially created as a clone of Bug #178121 +++ Splitting this as its two bugs -- Additional comment from bill+redhat@bfccomputing.com on 2006-11-12 19:00 EST -- Some more information; I put in a Zod DVD to do an upgrade and the BIOS wasn't set to boot from CD. So when I came back to the computer I had the usual lockup, but this time a stacktrace as well! Included for your debugging pleasure: BUG: spinlock recursion on CPU#0, swapper/0 (Not tainted) lock: c06e6980, .magic: dead4end, .owner: swapper/0, .owner_cpu: 0 [<c05060ef>] dump_trace+0x69/0x1af [<c040524d>] show_trace_log_lvl+0x18/0x2c [<c0506800>] show_trace+0xf/0x11 [<c05068fa>] dump_stack+0x15/0x17 [<c04e82c9>] _raw_spin_lock+0x35/0xdc [<c060fcd0>] _spin_lock_irqsave+0x9/0xd [<c055875e>] atiixp_ide_dma_host_off+0x1b/0x7c [<c056cd5a>] __ide_dma_off_quitely+0x19/0x23 [<c056c628>] __ide_dma_off+0x21/0x25 [<c05674b9>] do_reset1+0x42/0x191 [<c0566979>] __ide_error+0x197/0x1aa [<c05669e8>] ide_error+0x5c/0x72 [<f8930c9e>] cdrom_decode_status+0x219/0x2a5 [ide_cd] [<f8931466>] cdrom_read_intr+0x58/0x30e [ide_cd] [<c0566708>] ide_intr+0x146/0x1a7 [<c044b95a>] handle_IRQ_event+0x23/0x49 [<c044ba16>] __do_IRQ+0x96/0xf2 [<c04067cf>] do_IRQ+0x9e/0xbc Hopefully I typed all that correctly... -- Additional comment from bill+redhat@bfccomputing.com on 2006-11-18 03:22 EST -- For grins I replaced the Pioneer writer with an LG writer and the kernel crash gives the same stack. Someone with perms can set this for fc6, and clear NEEDINFO unless there's more to collect. --- Additional comment from alan@redhat.com on 2007-01-02 10:42:49 EST --- Upstream patch prepared --- Additional comment from bill-bugzilla.redhat.com@bfccomputing.com on 2007-01-04 15:33:24 EST --- URL for Alan's patch: http://lkml.org/lkml/diff/2007/1/2/126/1 (I'm not "sufficiently empowered") to modify the URL field. Thanks, Alan.
Created attachment 409533 [details] Fix atiixp locking Don't abuse ide_lock in atiixp.
Created attachment 414894 [details] RHEL5 fix for this issue Updated patch to latest RHEL5.
Based on comment #9, INSUFFICIENT_DATA. P.
*** Bug 643141 has been marked as a duplicate of this bug. ***
in kernel-2.6.18-231.el5 You can download this test kernel (or newer) from http://people.redhat.com/jwilson/el5 Detailed testing feedback is always welcomed.
Prarit, Do you know what hardware I need to reproduce this bug? Thank you.
(In reply to comment #18) > Prarit, > > Do you know what hardware I need to reproduce this bug? > > Thank you. No HW available unfortunately. But you can sanity test with any system with a DVD drive in it. P.
No hardware for testing. Code reviewed. kernel-2.6.18-236.el5 has the patch "linux-2.6-ide-atiixp-fix-locking-hang-in-ide-layer-atiixp-driver.patch" applied. Set as SanityOnly.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2011-0017.html