TechQA.

Question

segmentation fault when calling brk() and printf()

score 106 · Answer 1 · 2023-07-01T22:31:57.463000

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106

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segmentation fault when calling brk() and printf()

106 views Asked by barbyQAQ At 01 July 2023 at 22:31

score 41 · Answer 2 · 2023-05-12T11:27:55.847000

Can the pointer returned by sys _brk overlap the stack on Linux?

41 views Asked by pts At 12 May 2023 at 11:27

score 320 · Answer 3 · 2023-02-22T06:03:06.710000

In what circumstances can malloc_trim(0) cause a crash?

320 views Asked by Praveen At 22 February 2023 at 06:03

score 142 · Answer 4 · 2023-02-22T02:14:12.583000

Why using both malloc/calloc/realloc and brk functions will results in undefined behavior?

142 views Asked by chroshimmer At 22 February 2023 at 02:14

score 277 · Answer 5 · 2023-01-29T08:55:44.293000

Too many brk() noticed in strace

277 views Asked by LilyEvans At 29 January 2023 at 08:55

score 115 · Answer 6 · 2022-08-11T18:33:18.277000

Heap break will not change after free()?

115 views Asked by Praveen At 11 August 2022 at 18:33

score 101 · Answer 7 · 2022-08-11T09:11:08.457000

Memory allocation of program without any allocation syscalls

101 views Asked by hpirlo At 11 August 2022 at 09:11

score 80 · Answer 8 · 2022-08-05T06:47:38.973000

Problems with malloc

80 views Asked by CodeFish At 05 August 2022 at 06:47

score 100 · Answer 9 · 2022-06-21T23:51:46.913000

Why are user processes responsible for requesting memory from the OS?

100 views Asked by Dragonsheep At 21 June 2022 at 23:51

score 192 · Answer 10 · 2021-03-10T03:40:12.560000

Can I enforce sbrk return address to be within a certain specific range?

192 views Asked by AetX At 10 March 2021 at 03:40

score 1287 · Answer 11 · 2021-01-28T05:08:37.463000

Will malloc round up to the nearest page size?

1.2k views Asked by mediocrevegetable1 At 28 January 2021 at 05:08

score 480 · Answer 12 · 2020-04-29T22:24:56.627000

Own Malloc implementation freeze at brk

480 views Asked by XaniXxable At 29 April 2020 at 22:24

score 1084 · Answer 13 · 2020-02-10T01:16:00.273000

Need to align memory on a power of 2 and align the program break on a multiple of 2 * getpagesize() in C

1k views Asked by freeinternet At 10 February 2020 at 01:16

score 96 · Answer 14 · 2020-01-14T08:25:50.673000

Why isn't argument of brk(void *end_data_segment), rounded up to the next page boundary?

96 views Asked by Rick At 14 January 2020 at 08:25

score 89 · Answer 15 · 2020-01-11T13:24:01.117000

why do the argument of function brk() is void* and not int type?

89 views Asked by E. Ginzburg At 11 January 2020 at 13:24

score 378 · Answer 16 · 2019-12-17T06:28:37.360000

In which case, echo can append the NULL characters unexpectedly

378 views Asked by Yves At 17 December 2019 at 06:28

score 430 · Answer 17 · 2019-10-14T08:52:54.807000

Linux: brk() error 'Cannot allocate memory'

430 views Asked by MajorasKid At 14 October 2019 at 08:52

score 4089 · Answer 18 · 2019-09-13T06:28:20.500000

who is calling the brk(NULL) and why?

4k views Asked by Ellanti Kishore At 13 September 2019 at 06:28

score 222 · Answer 19 · 2019-05-09T19:11:37.280000

assembly x86 allocating array of structs dynamically using system calls

222 views Asked by UltimateMath At 09 May 2019 at 19:11

score 16107 · Answer 20 · 2019-04-19T22:35:05.827000

In malloc, why use brk at all? Why not just use mmap?

16.1k views Asked by Nate C-K At 19 April 2019 at 22:35

TechQA.

List Question

segmentation fault when calling brk() and printf()

Can the pointer returned by sys _brk overlap the stack on Linux?

In what circumstances can malloc_trim(0) cause a crash?

Why using both malloc/calloc/realloc and brk functions will results in undefined behavior?

Too many brk() noticed in strace

Heap break will not change after free()?

Memory allocation of program without any allocation syscalls

Problems with malloc

Why are user processes responsible for requesting memory from the OS?

Can I enforce sbrk return address to be within a certain specific range?

Will malloc round up to the nearest page size?

Own Malloc implementation freeze at brk

Need to align memory on a power of 2 and align the program break on a multiple of 2 * getpagesize() in C

Why isn't argument of brk(void *end_data_segment), rounded up to the next page boundary?

why do the argument of function brk() is void* and not int type?

In which case, echo can append the NULL characters unexpectedly

Linux: brk() error 'Cannot allocate memory'

who is calling the brk(NULL) and why?

assembly x86 allocating array of structs dynamically using system calls

In malloc, why use brk at all? Why not just use mmap?

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