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2007-06-24uml: use generic BUGNick Piggin
Get UML to use the generic bug support rather than arch specific one. If I insert an artificial bug right before loading init, I get this: Kernel panic - not syncing: Kernel mode signal 4 EIP: 0023:[<0819d501>] CPU: 0 Not tainted ESP: 002b:f7fd4fbc EFLAGS: 00000246 Not tainted EAX: 00000000 EBX: 00007870 ECX: 00000013 EDX: 00007870 ESI: 0000786d EDI: 00000011 EBP: f7fd4fd8 DS: 002b ES: 002b 08273bec: [<0806e814>] show_regs+0x104/0x106 08273c08: [<08058927>] panic_exit+0x2c/0x4b 08273c18: [<08080ee7>] notifier_call_chain+0x32/0x5b 08273c38: [<08080fbd>] __atomic_notifier_call_chain+0x30/0x32 08273c54: [<08080fee>] atomic_notifier_call_chain+0x2f/0x31 08273c70: [<08073b88>] panic+0x75/0x131 08273c94: [<080586c7>] relay_signal+0x87/0x95 08273cb0: [<0806b9ee>] sig_handler_common_skas+0x9e/0x120 08273cd8: [<08067738>] sig_handler+0x28/0x4f 08273cec: [<0806792e>] handle_signal+0x53/0x89 08273d0c: [<08069f60>] hard_handler+0x18/0x28 08273d1c: [<ffffe500>] transitions+0xf7d598b8/0xfffffff0 With this patch in place, this is how it looks: BUG: failure at init/main.c:779/init_post()! Kernel panic - not syncing: BUG! EIP: 0023:[<081a65d1>] CPU: 0 Not tainted ESP: 002b:f7f0dfbc EFLAGS: 00000246 Not tainted EAX: 00000000 EBX: 000069db ECX: 00000013 EDX: 000069db ESI: 000069d8 EDI: 00000011 EBP: f7f0dfd8 DS: 002b ES: 002b 098efedc: [<0806e9a4>] show_regs+0x104/0x106 098efef8: [<080589c7>] panic_exit+0x2c/0x4b 098eff08: [<080818d7>] notifier_call_chain+0x32/0x5b 098eff28: [<080819ad>] __atomic_notifier_call_chain+0x30/0x32 098eff44: [<080819de>] atomic_notifier_call_chain+0x2f/0x31 098eff60: [<08073f28>] panic+0x75/0x131 098eff84: [<080541d5>] init_post+0xcd/0xe8 098eff9c: [<08048ad4>] kernel_init+0x8e/0x9a 098effb4: [<08066dee>] run_kernel_thread+0x41/0x53 098effe0: [<08058e75>] new_thread_handler+0x62/0x8b 098efffc: [<a55a5a5a>] 0xa55a5a5a [ jdike - added BUG_TABLE to linker script ] Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-30[PATCH] uml: fix static linking for realPaolo 'Blaisorblade' Giarrusso
There was a typo in commit 7632fc8f809a97f9d82ce125e8e3e579390ce2e5, preventing it from working - 32bit binaries crashed hopelessly before the below fix and work perfectly now. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-27[PATCH] uml: fix static linkingJeff Dike
During a static link, ld has started putting a .note section in the .uml.setup.init section. This has the result that the UML setups begin with 32 bytes of garbage and UML crashes immediately on boot. This patch creates a specific .note section for ld to drop this stuff into. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2006-10-31[PATCH] uml: add INITCALLSJeff Dike
This is the UML piece of the INITCALLS tidying. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-01[PATCH] uml: fix oops related to exception tableJeff Dike
Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Prevent the kernel from oopsing during the extable sorting, as it can do now, because the extable is in the readonly section of the binary. Jeff says: The exception table turned RO in 2.6.11-rc3-mm1 for some reason. Moving it causes it to land in the writable data section of the binary. Paolo says: This patch fixes a oops on startup, which can be easily triggered by compiling with CONFIG_MODE_TT disabled, and STATIC_LINK either disabled or enabled. The resulting kernel will always Oops on startup, after printing this simple output: I've verified, by binary search on the BitKeeper repository (synced up as of 2.6.12-rc2), starting from the range 2.6.11-2.6.12-rc1, that this bug shows up on BitKeeper revisions in the range [@1.1994.11.168,+inf), i.e. starting from this: [PATCH] lib/sort: Replace insertion sort in exception tables Since UML does not use the exception table, it's likely that insertion sort didn't happen to write anything on the table. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16Linux-2.6.12-rc2Linus Torvalds
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!